# Agent Nexus

> A machine-readable registry of the interfaces AI agents call: HTTP APIs, MCP servers and CLIs.
> Every entry is human-reviewed and health-checked. Use the JSON API or the MCP server below — no scraping required.

## Machine interfaces

- MCP server (Streamable HTTP): https://agentnexus.app/mcp
  tools: discover_capabilities, search_registry, get_entry, list_categories, submit_entry, vote_entry, list_my_submissions
  auth: OAuth 2.1 with dynamic client registration
- Capability discovery (no auth): https://agentnexus.app/api/public/discover?need=send+an+email&limit=5
- JSON list: https://agentnexus.app/api/public/registry?q=&category=api|mcp|cli&limit=50
- JSON entry: https://agentnexus.app/api/public/registry/{slug}
- Capability vocabulary: https://agentnexus.app/api/public/capabilities
- Bulk catalog (NDJSON): https://agentnexus.app/api/public/entries.ndjson
- Public uptime history: https://agentnexus.app/api/public/status (per interface: ?slug={slug})
- Invocation feedback: POST https://agentnexus.app/api/public/report
- OpenAPI 3.1 spec: https://agentnexus.app/openapi.json
- Plugin manifest: https://agentnexus.app/.well-known/ai-plugin.json
- A2A agent card: https://agentnexus.app/.well-known/agent.json (also /.well-known/agent-card.json)
- MCP discovery: https://agentnexus.app/.well-known/mcp.json and https://agentnexus.app/server.json
- New entries feed: https://agentnexus.app/feed.xml
- Short directive file: https://agentnexus.app/agents.txt
- This file: https://agentnexus.app/llms.txt

## APIs

- [Airtable](https://agentnexus.app/api/public/registry/airtable-api): Structured records over REST, useful as an agent-writable lightweight database.
  endpoint: https://api.airtable.com/v0/{baseId}/{table}
  auth: Bearer personal access token
  auth_params: Authorization in header
  capabilities: store records, query a table, update a row, lightweight database
  formats: application/json -> application/json
  rate_limit: 5 req/s per base
  pricing: free tier
  tags: database, records
  health: unknown
  reliability: 15/100 (poor, 5 probes)
  example: curl "https://api.airtable.com/v0/$BASE/Table" -H "Authorization: Bearer $AIRTABLE_PAT"
  docs: https://airtable.com/developers/web/api/introduction
- [Algolia](https://agentnexus.app/api/public/registry/algolia-search-api): Hosted keyword and faceted search with sub-50ms responses.
  endpoint: https://{appid}-dsn.algolia.net/1/indexes/{index}/query
  auth: App ID + API key headers
  auth_params: X-Algolia-API-Key in header
  capabilities: full text search, faceted search, index documents, autocomplete
  formats: application/json -> application/json
  rate_limit: plan-based
  pricing: 10k searches/mo free
  tags: search, index
  health: unknown
  reliability: 20/100 (poor, 2 probes)
  example: curl -X POST "https://$APP-dsn.algolia.net/1/indexes/items/query" -H "X-Algolia-API-Key: $KEY" -H "X-Algolia-Application-Id: $APP" -d '{"params":"query=shoes"}'
  docs: https://www.algolia.com/doc/rest-api/search/
- [Anthropic Messages](https://agentnexus.app/api/public/registry/anthropic-api): Claude models with tool use, long context and streaming responses.
  endpoint: https://api.anthropic.com/v1/messages
  auth: x-api-key header
  auth_params: x-api-key in header
  capabilities: chat completion, tool use, long context reasoning, vision
  formats: application/json -> application/json or SSE stream
  rate_limit: Tier-based RPM/TPM
  pricing: Per token
  tags: ai, llm
  health: up (2026-09-14T09:25:48.104+00:00)
  reliability: 90/100 (excellent, 7 probes)
  docs: https://docs.anthropic.com/en/api/messages
- [Brave Search](https://agentnexus.app/api/public/registry/brave-search-api): Independent web index queryable as JSON — a common grounding source for agents.
  endpoint: https://api.search.brave.com/res/v1/web/search
  auth: X-Subscription-Token header
  auth_params: X-Subscription-Token in header
  capabilities: web search, news search, ground answers
  formats: query string -> application/json
  rate_limit: 1 req/s free tier
  pricing: 2k queries/mo free
  tags: search, web
  health: up (2026-09-14T09:25:44.027+00:00)
  reliability: 78/100 (good, 7 probes)
  docs: https://api-dashboard.search.brave.com/app/documentation
- [Browserless](https://agentnexus.app/api/public/registry/browserless-api): Headless Chrome as an HTTP service: screenshots, PDFs and full browser automation.
  endpoint: https://production-sfo.browserless.io/screenshot
  auth: token query parameter
  auth_params: token in query
  capabilities: take a screenshot, render a page, generate a pdf, browser automation
  formats: application/json -> image/png
  rate_limit: concurrency-based
  pricing: free trial, then usage
  tags: browser, automation
  health: up (2026-09-14T09:26:04.941+00:00)
  reliability: 85/100 (excellent, 6 probes)
  example: curl -X POST "https://production-sfo.browserless.io/screenshot?token=$TOKEN" -d '{"url":"https://example.com"}' --output shot.png
  docs: https://docs.browserless.io/http-apis/screenshot
- [Cloudflare API](https://agentnexus.app/api/public/registry/cloudflare-api): DNS, Workers, caching and zone configuration over REST.
  endpoint: https://api.cloudflare.com/client/v4
  auth: Bearer API token
  auth_params: Authorization in header
  capabilities: manage dns, purge cache, deploy a worker, configure a domain
  formats: application/json -> application/json
  rate_limit: 1200 req/5min
  pricing: free tier
  tags: dns, infrastructure
  health: up (2026-09-14T09:25:58.846+00:00)
  reliability: 32/100 (poor, 6 probes)
  example: curl "https://api.cloudflare.com/client/v4/zones" -H "Authorization: Bearer $CF_TOKEN"
  docs: https://developers.cloudflare.com/api/
- [Cloudflare R2 (S3 API)](https://agentnexus.app/api/public/registry/cloudflare-r2-s3-api): S3-compatible object storage with zero egress fees.
  endpoint: https://{account}.r2.cloudflarestorage.com
  auth: AWS SigV4
  auth_params: Authorization in header
  capabilities: store a file, upload an object, serve static assets, object storage
  formats: binary -> binary / xml
  rate_limit: high
  pricing: 10 GB/mo free
  tags: storage, s3
  health: unknown
  reliability: 20/100 (poor, 2 probes)
  example: aws s3 cp file.png s3://bucket/ --endpoint-url https://$ACCOUNT.r2.cloudflarestorage.com
  docs: https://developers.cloudflare.com/r2/api/s3/api/
- [CoinGecko](https://agentnexus.app/api/public/registry/coingecko-api): Crypto prices, market caps and historical charts, generous free tier.
  endpoint: https://api.coingecko.com/api/v3/simple/price
  auth: None (demo) / x-cg-api-key
  capabilities: crypto price, market data, historical prices
  formats: query string -> application/json
  rate_limit: 30 req/min free
  pricing: free tier
  tags: crypto, finance
  health: up (2026-09-14T09:25:50.311+00:00)
  reliability: 90/100 (excellent, 3 probes)
  example: curl "https://api.coingecko.com/api/v3/simple/price?ids=bitcoin&vs_currencies=usd"
  docs: https://docs.coingecko.com/reference/introduction
- [Deepgram](https://agentnexus.app/api/public/registry/deepgram-api): Speech-to-text transcription with diarization, streaming and 30+ languages.
  endpoint: https://api.deepgram.com/v1/listen
  auth: Token header
  auth_params: Authorization in header
  capabilities: transcribe audio, speech to text, diarize speakers, transcribe a call
  formats: audio/* or application/json -> application/json
  rate_limit: concurrency-based
  pricing: $200 free credit
  tags: audio, speech
  health: up (2026-09-14T09:25:54.216+00:00)
  reliability: 78/100 (good, 3 probes)
  example: curl -X POST https://api.deepgram.com/v1/listen -H "Authorization: Token $DG_KEY" -d '{"url":"https://x/audio.wav"}'
  docs: https://developers.deepgram.com/reference/listen-remote-files
- [DeepL](https://agentnexus.app/api/public/registry/deepl-api): High-quality machine translation across 30+ languages with formality control.
  endpoint: https://api-free.deepl.com/v2/translate
  auth: DeepL-Auth-Key header
  auth_params: Authorization in header
  capabilities: translate text, detect language, translate a document
  formats: application/x-www-form-urlencoded -> application/json
  rate_limit: 500k chars/mo free
  pricing: free tier then per character
  tags: translation, language
  health: unknown
  reliability: 90/100 (excellent, 5 probes)
  example: curl -X POST https://api-free.deepl.com/v2/translate -H "Authorization: DeepL-Auth-Key $DEEPL_KEY" -d "text=hello&target_lang=FR"
  docs: https://developers.deepl.com/docs/api-reference/translate
- [Discord REST API](https://agentnexus.app/api/public/registry/discord-api): Bot-driven access to guilds, channels and messages.
  endpoint: https://discord.com/api/v10
  auth: Bot token header
  auth_params: Authorization in header
  capabilities: send a discord message, manage channels, read messages
  formats: application/json -> application/json
  rate_limit: dynamic per route
  pricing: free
  tags: chat, community
  health: up (2026-09-14T09:25:51.827+00:00)
  reliability: 43/100 (poor, 3 probes)
  example: curl -X POST https://discord.com/api/v10/channels/$ID/messages -H "Authorization: Bot $TOKEN" -d '{"content":"hi"}'
  docs: https://discord.com/developers/docs/reference
- [ElevenLabs](https://agentnexus.app/api/public/registry/elevenlabs-api): Text-to-speech with cloned and multilingual voices, streaming supported.
  endpoint: https://api.elevenlabs.io/v1/text-to-speech/{voice_id}
  auth: xi-api-key header
  auth_params: xi-api-key in header
  capabilities: text to speech, generate a voice, narrate text, clone a voice
  formats: application/json -> audio/mpeg
  rate_limit: concurrency-based
  pricing: 10k chars/mo free
  tags: audio, voice
  health: unknown
  reliability: 34/100 (poor, 5 probes)
  example: curl -X POST https://api.elevenlabs.io/v1/text-to-speech/$VOICE -H "xi-api-key: $KEY" -d '{"text":"hello"}' --output out.mp3
  docs: https://elevenlabs.io/docs/api-reference/text-to-speech
- [Exa](https://agentnexus.app/api/public/registry/exa-search-api): Neural search over the web with semantic queries and full-text retrieval.
  endpoint: https://api.exa.ai/search
  auth: x-api-key header
  auth_params: x-api-key in header
  capabilities: semantic search, web search, find similar pages, retrieve page contents
  formats: application/json -> application/json
  rate_limit: 5 req/s
  pricing: usage-based, free tier
  tags: search, web
  health: up (2026-09-14T09:25:46.886+00:00)
  reliability: 43/100 (poor, 3 probes)
  example: curl -X POST https://api.exa.ai/search -H "x-api-key: $EXA_API_KEY" -d '{"query":"MCP registries","numResults":5}'
  docs: https://docs.exa.ai/reference/search
- [exchangerate.host](https://agentnexus.app/api/public/registry/exchangerate-api): Foreign exchange rates and currency conversion, no signup for basic use.
  endpoint: https://api.exchangerate.host/latest
  auth: None (access key for higher tiers)
  capabilities: convert currency, get exchange rate, historical rates
  formats: query string -> application/json
  rate_limit: Fair use
  pricing: Free tier
  tags: finance, data
  health: up (2026-09-14T09:25:58.592+00:00)
  reliability: 90/100 (excellent, 6 probes)
  docs: https://exchangerate.host/documentation
- [Firecrawl](https://agentnexus.app/api/public/registry/firecrawl-api): Turn any URL or whole site into clean markdown ready for a model context.
  endpoint: https://api.firecrawl.dev/v1/scrape
  auth: Bearer API key
  auth_params: Authorization in header
  capabilities: scrape a website, crawl a site, html to markdown, extract structured data
  formats: application/json -> application/json
  rate_limit: plan-based
  pricing: 500 credits free
  tags: scraping, web
  health: up (2026-09-14T09:25:56.547+00:00)
  reliability: 40/100 (poor, 7 probes)
  example: curl -X POST https://api.firecrawl.dev/v1/scrape -H "Authorization: Bearer $FIRECRAWL_API_KEY" -d '{"url":"https://example.com","formats":["markdown"]}'
  docs: https://docs.firecrawl.dev/api-reference/endpoint/scrape
- [Frankfurter FX](https://agentnexus.app/api/public/registry/frankfurter-fx-api): Reference exchange rates from the ECB, free and keyless.
  endpoint: https://api.frankfurter.app/latest
  auth: None
  capabilities: convert currency, exchange rate, historical fx
  formats: query string -> application/json
  rate_limit: fair use
  pricing: free
  tags: finance, open-data
  health: up (2026-09-14T09:25:51.18+00:00)
  reliability: 90/100 (excellent, 3 probes)
  example: curl "https://api.frankfurter.app/latest?from=EUR&to=USD"
  docs: https://frankfurter.dev/
- [GitHub REST](https://agentnexus.app/api/public/registry/github-rest-api): Repositories, issues, pull requests, actions and releases as HTTP resources.
  endpoint: https://api.github.com
  auth: Bearer personal access token
  auth_params: Authorization in header
  capabilities: read repository, open issue, create pull request, trigger workflow, search code
  formats: application/json -> application/json
  rate_limit: 5000 req/h authenticated
  pricing: Free
  tags: dev, git
  health: up (2026-09-14T09:25:55.657+00:00)
  reliability: 90/100 (excellent, 7 probes)
  docs: https://docs.github.com/en/rest
- [Google Calendar API](https://agentnexus.app/api/public/registry/google-calendar-api): Create, list and update calendar events on behalf of a user.
  endpoint: https://www.googleapis.com/calendar/v3/calendars/{calendarId}/events
  auth: OAuth 2.0 bearer token
  auth_params: Authorization in header
  capabilities: create an event, schedule a meeting, list events, check availability
  formats: application/json -> application/json
  rate_limit: 1M queries/day
  pricing: free
  tags: calendar, scheduling
  health: unknown
  reliability: 90/100 (excellent, 2 probes)
  example: curl "https://www.googleapis.com/calendar/v3/calendars/primary/events" -H "Authorization: Bearer $TOKEN"
  docs: https://developers.google.com/calendar/api/v3/reference/events
- [Google Places](https://agentnexus.app/api/public/registry/google-maps-places-api): Place search, details and geocoding for location-aware agents.
  endpoint: https://places.googleapis.com/v1/places:searchText
  auth: X-Goog-Api-Key header
  auth_params: X-Goog-Api-Key in header
  capabilities: search places, geocode address, get place details, compute route
  formats: application/json -> application/json
  rate_limit: QPS quota per project
  pricing: Monthly credit then per request
  tags: maps, location
  health: up (2026-09-14T09:26:05.184+00:00)
  reliability: 32/100 (poor, 6 probes)
  docs: https://developers.google.com/maps/documentation/places/web-service
- [Hacker News Firebase API](https://agentnexus.app/api/public/registry/hackernews-api): Public, auth-free feed of stories, comments and users.
  endpoint: https://hacker-news.firebaseio.com/v0/topstories.json
  auth: None
  capabilities: read news feed, monitor topic, fetch comments
  formats: query string -> application/json
  rate_limit: Fair use
  pricing: Free
  tags: news, public
  health: up (2026-09-14T09:26:08.369+00:00)
  reliability: 85/100 (excellent, 6 probes)
  docs: https://github.com/HackerNews/API
- [Hugging Face Inference](https://agentnexus.app/api/public/registry/hugging-face-inference-api): Serverless inference across thousands of hosted community models.
  endpoint: https://router.huggingface.co/hf-inference/models
  auth: Bearer token
  auth_params: Authorization in header
  capabilities: text classification, text embedding, image classification, run open model
  formats: application/json -> application/json
  rate_limit: Free tier throttled
  pricing: Free tier then usage-based
  tags: ai, models
  health: up (2026-09-14T09:27:02.001+00:00)
  reliability: 30/100 (poor, 7 probes)
  docs: https://huggingface.co/docs/api-inference/index
- [Linear](https://agentnexus.app/api/public/registry/linear-api): GraphQL issue tracker. Strong schema, great for planning agents.
  endpoint: https://api.linear.app/graphql
  auth: API key header
  capabilities: issue-tracking, project-planning, graphql-query
  formats: application/json (GraphQL) -> application/json
  rate_limit: 1500 req/h
  pricing: free for teams
  tags: issues, graphql
  health: up (2026-09-14T09:25:48.726+00:00)
  reliability: 100/100 (excellent, 15 probes), verified
  example: POST https://api.linear.app/graphql
  docs: https://developers.linear.app
- [Linear GraphQL API](https://agentnexus.app/api/public/registry/linear-graphql-api): Create, query and update issues, projects and cycles from a single GraphQL endpoint.
  endpoint: https://api.linear.app/graphql
  auth: API key header
  auth_params: Authorization in header
  capabilities: create an issue, track a task, query a backlog, update project status
  formats: application/json (GraphQL) -> application/json
  rate_limit: 1500 req/h
  pricing: free with workspace
  tags: issues, project-management
  health: up (2026-09-14T09:25:50.889+00:00)
  reliability: 90/100 (excellent, 7 probes)
  example: curl -X POST https://api.linear.app/graphql -H "Authorization: $LINEAR_KEY" -d '{"query":"{ viewer { id } }"}'
  docs: https://developers.linear.app/docs/graphql/working-with-the-graphql-api
- [Logo API (Clearbit)](https://agentnexus.app/api/public/registry/clearbit-logo-api): Company logo by domain, keyless image endpoint.
  endpoint: https://logo.clearbit.com/{domain}
  auth: None
  capabilities: get a company logo, brand assets
  formats: path parameter -> image/png
  rate_limit: fair use
  pricing: free
  tags: assets, branding
  health: unknown
  reliability: 20/100 (poor, 2 probes)
  example: curl https://logo.clearbit.com/stripe.com --output logo.png
  docs: https://clearbit.com/logo
- [Mapbox Geocoding](https://agentnexus.app/api/public/registry/mapbox-geocoding-api): Forward and reverse geocoding: addresses to coordinates and back.
  endpoint: https://api.mapbox.com/geocoding/v5/mapbox.places
  auth: access_token query parameter
  auth_params: access_token in query
  capabilities: geocode an address, reverse geocode, search places
  formats: query string -> application/geo+json
  rate_limit: 600 req/min
  pricing: 100k req/mo free
  tags: geo, maps
  health: up (2026-09-14T09:25:47.238+00:00)
  reliability: 90/100 (excellent, 3 probes)
  example: curl "https://api.mapbox.com/geocoding/v5/mapbox.places/Paris.json?access_token=$MAPBOX_TOKEN"
  docs: https://docs.mapbox.com/api/search/geocoding/
- [Notion](https://agentnexus.app/api/public/registry/notion-api): Pages, databases and blocks as structured JSON. Rate limit ~3 req/s.
  endpoint: https://api.notion.com/v1
  auth: Bearer integration token
  capabilities: documents, knowledge-base, search, write-page
  formats: application/json -> application/json
  rate_limit: 3 req/s
  pricing: free tier
  tags: docs, knowledge
  health: up (2026-09-14T09:25:49.295+00:00)
  reliability: 95/100 (excellent, 15 probes), verified
  example: curl -H "Authorization: Bearer $TOKEN" https://api.notion.com/v1/search
  docs: https://developers.notion.com
- [OpenAI Platform](https://agentnexus.app/api/public/registry/openai-api): Chat completions, embeddings, images, audio and structured outputs.
  endpoint: https://api.openai.com/v1
  auth: Bearer API key
  auth_params: Authorization in header
  capabilities: chat completion, text embedding, generate image, speech to text, text to speech
  formats: application/json -> application/json or SSE stream
  rate_limit: Tier-based RPM/TPM
  pricing: Per token
  tags: ai, llm
  health: up (2026-09-14T09:25:57.871+00:00)
  reliability: 30/100 (poor, 7 probes)
  docs: https://platform.openai.com/docs/api-reference
- [OpenAlex](https://agentnexus.app/api/public/registry/openalex-api): Open catalog of scholarly works, authors and institutions.
  endpoint: https://api.openalex.org/works
  auth: None (polite pool via mailto)
  capabilities: search papers, cite sources, look up author
  formats: query string -> application/json
  rate_limit: 100k req/day
  pricing: Free
  tags: research, public
  health: up (2026-09-14T09:26:07.189+00:00)
  reliability: 85/100 (excellent, 6 probes)
  docs: https://docs.openalex.org
- [OpenWeather](https://agentnexus.app/api/public/registry/openweather-api): Current conditions, forecasts and historical weather by coordinates or city.
  endpoint: https://api.openweathermap.org/data/2.5/weather
  auth: appid query parameter
  auth_params: appid in query
  capabilities: get the weather, weather forecast, historical weather
  formats: query string -> application/json
  rate_limit: 60 req/min free
  pricing: free tier
  tags: weather, geo
  health: up (2026-09-14T09:25:46.365+00:00)
  reliability: 90/100 (excellent, 3 probes)
  example: curl "https://api.openweathermap.org/data/2.5/weather?q=Paris&appid=$OWM_KEY&units=metric"
  docs: https://openweathermap.org/current
- [OpenWeatherMap](https://agentnexus.app/api/public/registry/openweathermap-api): Current conditions and forecasts by coordinates or city name.
  endpoint: https://api.openweathermap.org/data/2.5/weather
  auth: appid query parameter
  auth_params: appid in query
  capabilities: get weather, get forecast, geocode city
  formats: query string -> application/json
  rate_limit: 60 calls/min free
  pricing: Free tier available
  tags: weather, data
  health: unknown
  reliability: 90/100 (excellent, 5 probes)
  docs: https://openweathermap.org/current
- [PDF.co](https://agentnexus.app/api/public/registry/pdf-co-api): Parse, split, merge and extract data from PDFs over HTTP.
  endpoint: https://api.pdf.co/v1/pdf/convert/to/text
  auth: x-api-key header
  auth_params: x-api-key in header
  capabilities: parse pdf, extract text, merge documents, fill form
  formats: application/json -> application/json
  rate_limit: Plan-based
  pricing: Free trial credits
  tags: documents, parsing
  health: unknown
  reliability: 85/100 (excellent, 5 probes)
  docs: https://developer.pdf.co
- [Pinecone](https://agentnexus.app/api/public/registry/pinecone-api): Managed vector database for embeddings, retrieval and RAG pipelines.
  endpoint: https://{index}-{project}.svc.{env}.pinecone.io/query
  auth: Api-Key header
  auth_params: Api-Key in header
  capabilities: vector search, store embeddings, semantic retrieval, rag
  formats: application/json -> application/json
  rate_limit: plan-based
  pricing: free starter index
  tags: vector, rag
  health: unknown
  reliability: 20/100 (poor, 2 probes)
  example: curl -X POST "$PINECONE_HOST/query" -H "Api-Key: $PINECONE_API_KEY" -d '{"vector":[0.1,0.2],"topK":5}'
  docs: https://docs.pinecone.io/reference/api/introduction
- [Replicate](https://agentnexus.app/api/public/registry/replicate-api): Run thousands of open-source models (image, video, audio) behind one prediction API.
  endpoint: https://api.replicate.com/v1/predictions
  auth: Bearer API token
  auth_params: Authorization in header
  capabilities: generate an image, run a model, video generation, upscale an image
  formats: application/json -> application/json
  rate_limit: 600 req/min
  pricing: per second of compute
  tags: models, inference
  health: up (2026-09-14T09:26:03.239+00:00)
  reliability: 90/100 (excellent, 6 probes)
  example: curl -X POST https://api.replicate.com/v1/predictions -H "Authorization: Bearer $REPLICATE_TOKEN" -d '{"version":"...","input":{"prompt":"a cat"}}'
  docs: https://replicate.com/docs/reference/http
- [Resend](https://agentnexus.app/api/public/registry/resend-api): Transactional email with a single POST. Ideal for agent side effects.
  endpoint: https://api.resend.com/emails
  auth: Bearer API key
  capabilities: send-email, transactional-email, notifications
  formats: application/json -> application/json
  rate_limit: 10 req/s
  pricing: free tier then usage
  tags: email
  health: up (2026-09-14T09:25:49.846+00:00)
  reliability: 100/100 (excellent, 15 probes), verified
  example: curl -X POST https://api.resend.com/emails -H "Authorization: Bearer $KEY" -d '{"to":"a@b.c"}'
  docs: https://resend.com/docs
- [SEC EDGAR](https://agentnexus.app/api/public/registry/sec-edgar-api): Public filings and company financial facts, no key required.
  endpoint: https://data.sec.gov/api/xbrl/companyfacts/CIK{cik}.json
  auth: None (User-Agent header required)
  capabilities: company financials, read sec filings, public company data
  formats: path parameters -> application/json
  rate_limit: 10 req/s
  pricing: free
  tags: finance, open-data
  health: unknown
  reliability: 90/100 (excellent, 2 probes)
  example: curl -H "User-Agent: agent@example.com" https://data.sec.gov/api/xbrl/companyfacts/CIK0000320193.json
  docs: https://www.sec.gov/search-filings/edgar-application-programming-interfaces
- [Sentry API](https://agentnexus.app/api/public/registry/sentry-api): Read issues, events and releases from an error-monitoring project.
  endpoint: https://sentry.io/api/0/projects/{org}/{project}/issues/
  auth: Bearer auth token
  auth_params: Authorization in header
  capabilities: list errors, read issues, monitor exceptions, triage a bug
  formats: query string -> application/json
  rate_limit: org-based
  pricing: free tier
  tags: observability, errors
  health: unknown
  reliability: 3/100 (poor, 5 probes)
  example: curl "https://sentry.io/api/0/projects/$ORG/$PROJ/issues/" -H "Authorization: Bearer $SENTRY_TOKEN"
  docs: https://docs.sentry.io/api/
- [Slack Web API](https://agentnexus.app/api/public/registry/slack-web-api): Post messages, read channels and manage a workspace programmatically.
  endpoint: https://slack.com/api/chat.postMessage
  auth: Bearer bot token
  auth_params: Authorization in header
  capabilities: send a slack message, post to a channel, read channel history
  formats: application/json -> application/json
  rate_limit: 1 msg/s per channel
  pricing: free
  tags: chat, messaging
  health: up (2026-09-14T09:25:55.25+00:00)
  reliability: 85/100 (excellent, 7 probes)
  example: curl -X POST https://slack.com/api/chat.postMessage -H "Authorization: Bearer $SLACK_BOT_TOKEN" -d '{"channel":"#general","text":"hi"}'
  docs: https://api.slack.com/methods/chat.postMessage
- [Stripe](https://agentnexus.app/api/public/registry/stripe-api): Payments, subscriptions, invoices. Idempotent writes, cursor pagination.
  endpoint: https://api.stripe.com/v1
  auth: Bearer secret key
  capabilities: payments, subscriptions, invoicing, refunds
  formats: application/x-www-form-urlencoded -> application/json
  rate_limit: 100 req/s
  pricing: usage-based
  tags: payments, billing
  health: up (2026-09-14T09:25:40.832+00:00)
  reliability: 25/100 (poor, 15 probes)
  example: curl https://api.stripe.com/v1/charges -u sk_test_xxx:
  docs: https://docs.stripe.com/api
- [Supabase PostgREST](https://agentnexus.app/api/public/registry/supabase-rest-api): Any Postgres schema exposed as a REST interface with row-level security.
  endpoint: https://api.supabase.com/v1
  auth: apikey header + optional user JWT
  auth_params: apikey in header, Authorization in header
  capabilities: query database, insert row, update row, call sql function
  formats: application/json -> application/json
  rate_limit: Instance-dependent
  pricing: Free tier available
  tags: database, postgres
  health: up (2026-09-14T09:25:42.558+00:00)
  reliability: 30/100 (poor, 7 probes)
  docs: https://supabase.com/docs/guides/api
- [Tavily Search](https://agentnexus.app/api/public/registry/tavily-search-api): Web search built for LLM consumption: ranked results with extracted page content.
  endpoint: https://api.tavily.com/search
  auth: Bearer API key
  auth_params: Authorization in header
  capabilities: web search, search the internet, research a topic, extract page content
  formats: application/json -> application/json
  rate_limit: 100 req/min
  pricing: 1k credits/mo free
  tags: search, web
  health: up (2026-09-14T09:25:57.446+00:00)
  reliability: 90/100 (excellent, 7 probes)
  example: curl -X POST https://api.tavily.com/search -H "Authorization: Bearer $TAVILY_API_KEY" -d '{"query":"agentic web"}'
  docs: https://docs.tavily.com/api-reference/endpoint/search
- [Twilio Messaging](https://agentnexus.app/api/public/registry/twilio-messaging-api): Send SMS, MMS and WhatsApp messages worldwide over a REST endpoint.
  endpoint: https://api.twilio.com/2010-04-01/Accounts/{AccountSid}/Messages.json
  auth: HTTP Basic (SID + auth token)
  auth_params: Authorization in header
  capabilities: send an sms, send whatsapp message, send a text message
  formats: application/x-www-form-urlencoded -> application/json
  rate_limit: 1 msg/s per number
  pricing: per message
  tags: sms, messaging
  health: unknown
  reliability: 90/100 (excellent, 6 probes)
  example: curl -X POST "https://api.twilio.com/2010-04-01/Accounts/$SID/Messages.json" -u "$SID:$TOKEN" -d "To=+33...&From=+1...&Body=hi"
  docs: https://www.twilio.com/docs/messaging/api/message-resource
- [Unstructured](https://agentnexus.app/api/public/registry/unstructured-api): Parse PDFs, DOCX and slides into clean, chunked elements for retrieval.
  endpoint: https://api.unstructuredapp.io/general/v0/general
  auth: unstructured-api-key header
  auth_params: unstructured-api-key in header
  capabilities: parse a pdf, extract text from a document, chunk a document, ocr
  formats: multipart/form-data -> application/json
  rate_limit: plan-based
  pricing: free tier
  tags: documents, parsing
  health: up (2026-09-14T09:25:53.103+00:00)
  reliability: 85/100 (excellent, 3 probes)
  example: curl -X POST https://api.unstructuredapp.io/general/v0/general -H "unstructured-api-key: $KEY" -F "files=@doc.pdf"
  docs: https://docs.unstructured.io/api-reference/api-services/overview
- [Vercel REST API](https://agentnexus.app/api/public/registry/vercel-api): Trigger deployments, read logs and manage projects and domains.
  endpoint: https://api.vercel.com/v13/deployments
  auth: Bearer token
  auth_params: Authorization in header
  capabilities: deploy an app, read deployment logs, manage domains
  formats: application/json -> application/json
  rate_limit: plan-based
  pricing: free tier
  tags: deploy, devops
  health: up (2026-09-14T09:26:00.899+00:00)
  reliability: 78/100 (good, 3 probes)
  example: curl https://api.vercel.com/v6/deployments -H "Authorization: Bearer $VERCEL_TOKEN"
  docs: https://vercel.com/docs/rest-api
- [Wikipedia REST](https://agentnexus.app/api/public/registry/wikipedia-rest-api): Article summaries and full content — a reliable no-auth grounding source.
  endpoint: https://en.wikipedia.org/api/rest_v1/page/summary
  auth: None
  capabilities: look up facts, summarize article, ground answers
  formats: path parameter -> application/json
  rate_limit: 200 req/s shared
  pricing: Free
  tags: knowledge, public
  health: up (2026-09-14T09:26:07.571+00:00)
  reliability: 32/100 (poor, 6 probes)
  docs: https://en.wikipedia.org/api/rest_v1/
- [Wikipedia REST API](https://agentnexus.app/api/public/registry/wikipedia-api): Article summaries and full content, keyless and highly reliable.
  endpoint: https://en.wikipedia.org/api/rest_v1/page/summary/{title}
  auth: None
  capabilities: look up a fact, article summary, encyclopedia lookup
  formats: path parameters -> application/json
  rate_limit: 200 req/s
  pricing: free
  tags: knowledge, open-data
  health: unknown
  reliability: 85/100 (excellent, 2 probes)
  example: curl https://en.wikipedia.org/api/rest_v1/page/summary/Model_Context_Protocol
  docs: https://en.wikipedia.org/api/rest_v1/

## MCP servers

- [Cloudflare Docs MCP](https://agentnexus.app/api/public/registry/cloudflare-docs-mcp): Hosted MCP server answering questions over the full Cloudflare documentation.
  endpoint: https://docs.mcp.cloudflare.com/sse
  auth: None (public)
  capabilities: search documentation, cloudflare help, workers docs
  formats: MCP SSE -> MCP tool results
  rate_limit: fair use
  pricing: free
  tags: docs, infrastructure
  health: up (2026-09-14T09:25:44.367+00:00)
  reliability: 90/100 (excellent, 3 probes)
  example: claude mcp add --transport sse cloudflare-docs https://docs.mcp.cloudflare.com/sse
  docs: https://developers.cloudflare.com/agents/model-context-protocol/mcp-servers-for-cloudflare/
- [Cloudflare MCP](https://agentnexus.app/api/public/registry/cloudflare-mcp): Workers, DNS, analytics and logs exposed as remote MCP tools.
  endpoint: https://observability.mcp.cloudflare.com/mcp
  auth: OAuth 2.1
  tags: edge, infra
  health: up (2026-09-14T09:25:54.482+00:00)
  reliability: 90/100 (excellent, 15 probes)
  docs: https://developers.cloudflare.com
- [Cloudflare MCP](https://agentnexus.app/api/public/registry/cloudflare-mcp-server): Remote MCP servers for Workers, observability, DNS analytics and docs.
  endpoint: https://docs.mcp.cloudflare.com/mcp
  auth: OAuth
  capabilities: deploy worker, read documentation, read logs, manage dns record
  formats: JSON-RPC 2.0 (MCP) -> MCP tool results
  rate_limit: Account quota
  pricing: Free tier available
  tags: infra, dns
  health: up (2026-09-14T09:25:46.143+00:00)
  reliability: 90/100 (excellent, 6 probes)
  docs: https://developers.cloudflare.com/agents/model-context-protocol/
- [Context7 MCP](https://agentnexus.app/api/public/registry/context7-mcp): Up-to-date library documentation injected into the model context on demand.
  endpoint: https://mcp.context7.com/mcp
  auth: Optional API key
  capabilities: read library docs, up to date documentation, resolve a package
  formats: MCP streamable http -> MCP tool results
  rate_limit: fair use
  pricing: free tier
  tags: docs, libraries
  health: up (2026-09-14T09:25:42.202+00:00)
  reliability: 85/100 (excellent, 3 probes)
  example: claude mcp add --transport http context7 https://mcp.context7.com/mcp
  docs: https://github.com/upstash/context7
- [Context7 MCP](https://agentnexus.app/api/public/registry/context7-mcp-server): Up-to-date library documentation injected straight into an agent's context.
  endpoint: https://mcp.context7.com/mcp
  auth: None (optional API key)
  capabilities: read documentation, resolve library id, ground code generation
  formats: JSON-RPC 2.0 (MCP) -> MCP tool results
  rate_limit: Fair use
  pricing: Free
  tags: docs, dev
  health: up (2026-09-14T09:26:09.509+00:00)
  reliability: 95/100 (excellent, 6 probes), verified
  docs: https://github.com/upstash/context7
- [DeepWiki MCP](https://agentnexus.app/api/public/registry/deepwiki-mcp-server): Ask questions about any public GitHub repository through indexed wikis.
  endpoint: https://mcp.deepwiki.com/mcp
  auth: None
  capabilities: read documentation, explain codebase, ask about repository
  formats: JSON-RPC 2.0 (MCP) -> MCP tool results
  rate_limit: Fair use
  pricing: Free
  tags: docs, dev
  health: up (2026-09-14T09:26:19.07+00:00)
  reliability: 78/100 (good, 6 probes)
  docs: https://docs.devin.ai/work-with-devin/deepwiki-mcp
- [DeepWiki MCP](https://agentnexus.app/api/public/registry/deepwiki-mcp): Ask questions about any public GitHub repository through generated documentation.
  endpoint: https://mcp.deepwiki.com/mcp
  auth: None (public)
  capabilities: understand a repository, ask about a codebase, read repo documentation
  formats: MCP streamable http -> MCP tool results
  rate_limit: fair use
  pricing: free
  tags: code, docs
  health: up (2026-09-14T09:26:02.588+00:00)
  reliability: 78/100 (good, 3 probes)
  example: claude mcp add --transport http deepwiki https://mcp.deepwiki.com/mcp
  docs: https://docs.devin.ai/work-with-devin/deepwiki-mcp
- [Fetch MCP](https://agentnexus.app/api/public/registry/fetch-mcp): Reference server that fetches a URL and converts it to markdown for the model.
  endpoint: uvx mcp-server-fetch
  auth: None
  capabilities: fetch a url, read a web page, html to markdown
  formats: MCP stdio -> MCP tool results
  rate_limit: local
  pricing: free / open source
  tags: web, fetch
  health: unknown
  reliability: unproven
  example: {"mcpServers":{"fetch":{"command":"uvx","args":["mcp-server-fetch"]}}}
  docs: https://github.com/modelcontextprotocol/servers/tree/main/src/fetch
- [Fetch MCP](https://agentnexus.app/api/public/registry/fetch-mcp-server): Reference server that fetches a URL and converts it to markdown for the model.
  endpoint: npx -y @modelcontextprotocol/server-fetch
  auth: None
  capabilities: fetch url, html to markdown, read web page
  formats: JSON-RPC 2.0 over stdio -> MCP tool results
  rate_limit: None
  pricing: Free
  tags: web, content
  health: unknown
  reliability: unproven
  docs: https://github.com/modelcontextprotocol/servers/tree/main/src/fetch
- [Filesystem MCP](https://agentnexus.app/api/public/registry/filesystem-mcp-server): Reference server giving agents scoped read/write access to local directories.
  endpoint: npx -y @modelcontextprotocol/server-filesystem <allowed-dir>
  auth: None (local stdio, path-scoped)
  capabilities: read file, write file, list directory, search files
  formats: JSON-RPC 2.0 over stdio -> MCP tool results
  rate_limit: None
  pricing: Free
  tags: files, local
  health: unknown
  reliability: unproven
  docs: https://github.com/modelcontextprotocol/servers/tree/main/src/filesystem
- [Filesystem MCP](https://agentnexus.app/api/public/registry/filesystem-mcp): Reference MCP server exposing sandboxed read/write access to local directories.
  endpoint: npx -y @modelcontextprotocol/server-filesystem /path
  auth: None (path allow-list)
  capabilities: read a file, write a file, list a directory, search files
  formats: MCP stdio -> MCP tool results
  rate_limit: local
  pricing: free / open source
  tags: files, local
  health: unknown
  reliability: unproven
  example: {"mcpServers":{"filesystem":{"command":"npx","args":["-y","@modelcontextprotocol/server-filesystem","/work"]}}}
  docs: https://github.com/modelcontextprotocol/servers/tree/main/src/filesystem
- [GitHub MCP](https://agentnexus.app/api/public/registry/github-mcp): Repos, issues, pull requests and code search as first-class tools.
  endpoint: https://api.githubcopilot.com/mcp
  auth: OAuth 2.1
  capabilities: code-search, repositories, pull-requests, issues
  formats: MCP JSON-RPC -> MCP content
  pricing: included with GitHub
  tags: code, vcs
  health: up (2026-09-14T09:25:47.84+00:00)
  reliability: 100/100 (excellent, 15 probes), verified
  docs: https://docs.github.com
- [GitHub MCP Server](https://agentnexus.app/api/public/registry/github-mcp-server): Official MCP server exposing repos, issues, PRs and code search as tools.
  endpoint: https://api.githubcopilot.com/mcp/
  auth: OAuth or PAT bearer
  auth_params: Authorization in header
  capabilities: read repository, open issue, create pull request, search code, review code
  formats: JSON-RPC 2.0 (MCP) -> MCP tool results
  rate_limit: GitHub API limits apply
  pricing: Free
  tags: dev, git
  health: up (2026-09-14T09:25:45.608+00:00)
  reliability: 90/100 (excellent, 6 probes)
  docs: https://github.com/github/github-mcp-server
- [Hugging Face MCP](https://agentnexus.app/api/public/registry/hugging-face-mcp): Hosted MCP server over models, datasets, Spaces and inference.
  endpoint: https://huggingface.co/mcp
  auth: Bearer HF token
  auth_params: Authorization in header
  capabilities: search models, search datasets, run inference, explore spaces
  formats: MCP streamable http -> MCP tool results
  rate_limit: account-based
  pricing: free tier
  tags: models, datasets
  health: up (2026-09-14T09:26:03.767+00:00)
  reliability: 90/100 (excellent, 3 probes)
  example: claude mcp add --transport http huggingface https://huggingface.co/mcp
  docs: https://huggingface.co/settings/mcp
- [Linear MCP](https://agentnexus.app/api/public/registry/linear-mcp-server): Manage issues, projects and cycles from an agent session.
  endpoint: https://mcp.linear.app/mcp
  auth: OAuth
  capabilities: create issue, update issue status, query backlog, assign work
  formats: JSON-RPC 2.0 over SSE -> MCP tool results
  rate_limit: Linear API limits apply
  pricing: Free with workspace
  tags: project, issues
  health: up (2026-09-14T09:25:41.141+00:00)
  reliability: 32/100 (poor, 6 probes)
  docs: https://linear.app/docs/mcp
- [Linear MCP](https://agentnexus.app/api/public/registry/linear-mcp): Official hosted MCP server for issues, projects and cycles.
  endpoint: https://mcp.linear.app/mcp
  auth: OAuth 2.1
  auth_params: Authorization in header
  capabilities: create an issue, search issues, update a task, read a project
  formats: MCP streamable http -> MCP tool results
  rate_limit: workspace-based
  pricing: free with workspace
  tags: issues, project-management
  health: up (2026-09-14T09:25:59.127+00:00)
  reliability: 90/100 (excellent, 3 probes)
  example: claude mcp add --transport http linear https://mcp.linear.app/mcp
  docs: https://linear.app/docs/mcp
- [Memory MCP](https://agentnexus.app/api/public/registry/memory-mcp-server): Knowledge-graph persistent memory so agents keep state across sessions.
  endpoint: npx -y @modelcontextprotocol/server-memory
  auth: None (local stdio)
  capabilities: store memory, recall memory, build knowledge graph
  formats: JSON-RPC 2.0 over stdio -> MCP tool results
  rate_limit: None
  pricing: Free
  tags: memory, state
  health: unknown
  reliability: unproven
  docs: https://github.com/modelcontextprotocol/servers/tree/main/src/memory
- [Memory MCP](https://agentnexus.app/api/public/registry/memory-mcp): Knowledge-graph persistent memory across sessions, reference implementation.
  endpoint: npx -y @modelcontextprotocol/server-memory
  auth: None
  capabilities: remember information, persistent memory, knowledge graph
  formats: MCP stdio -> MCP tool results
  rate_limit: local
  pricing: free / open source
  tags: memory, state
  health: unknown
  reliability: unproven
  example: {"mcpServers":{"memory":{"command":"npx","args":["-y","@modelcontextprotocol/server-memory"]}}}
  docs: https://github.com/modelcontextprotocol/servers/tree/main/src/memory
- [Notion MCP](https://agentnexus.app/api/public/registry/notion-mcp-server): Official Notion MCP server for searching, reading and writing workspace content.
  endpoint: https://mcp.notion.com/mcp
  auth: OAuth
  capabilities: search workspace, create document, update page, query database
  formats: JSON-RPC 2.0 (MCP) -> MCP tool results
  rate_limit: Notion API limits apply
  pricing: Free with workspace
  tags: docs, knowledge
  health: up (2026-09-14T09:25:45.915+00:00)
  reliability: 90/100 (excellent, 6 probes)
  docs: https://developers.notion.com/docs/mcp
- [Notion MCP](https://agentnexus.app/api/public/registry/notion-mcp): Official hosted MCP server for reading and editing a Notion workspace.
  endpoint: https://mcp.notion.com/mcp
  auth: OAuth 2.1
  auth_params: Authorization in header
  capabilities: search notion, create a page, update a database, read documents
  formats: MCP streamable http -> MCP tool results
  rate_limit: workspace-based
  pricing: free with workspace
  tags: docs, knowledge
  health: up (2026-09-14T09:25:59.425+00:00)
  reliability: 90/100 (excellent, 3 probes)
  example: claude mcp add --transport http notion https://mcp.notion.com/mcp
  docs: https://developers.notion.com/docs/mcp
- [Playwright MCP](https://agentnexus.app/api/public/registry/playwright-mcp-server): Drive a real browser from an agent: navigate, click, type, snapshot.
  endpoint: npx -y @playwright/mcp@latest
  auth: None (local stdio)
  capabilities: browse website, click element, fill form, screenshot page, run browser automation
  formats: JSON-RPC 2.0 over stdio -> MCP tool results (accessibility tree)
  rate_limit: None
  pricing: Free
  tags: browser, automation
  health: unknown
  reliability: unproven
  docs: https://github.com/microsoft/playwright-mcp
- [Playwright MCP](https://agentnexus.app/api/public/registry/playwright-mcp): Microsoft's official MCP server driving a real browser through accessibility snapshots.
  endpoint: npx @playwright/mcp@latest
  auth: None (local stdio)
  capabilities: browse the web, click elements, fill a form, take a screenshot, e2e testing
  formats: MCP stdio -> MCP tool results
  rate_limit: local
  pricing: free / open source
  tags: browser, automation
  health: unknown
  reliability: unproven
  example: {"mcpServers":{"playwright":{"command":"npx","args":["@playwright/mcp@latest"]}}}
  docs: https://github.com/microsoft/playwright-mcp
- [Postgres MCP](https://agentnexus.app/api/public/registry/postgres-mcp-server): Read-only SQL access to a Postgres database with schema introspection.
  endpoint: npx -y @modelcontextprotocol/server-postgres <connection-string>
  auth: Connection string
  capabilities: query database, inspect schema, run sql
  formats: JSON-RPC 2.0 over stdio -> MCP tool results
  rate_limit: Database-dependent
  pricing: Free
  tags: database, sql
  health: unknown
  reliability: unproven
  docs: https://github.com/modelcontextprotocol/servers/tree/main/src/postgres
- [Sentry MCP](https://agentnexus.app/api/public/registry/sentry-mcp-server): Hosted MCP server for triaging production errors and running Seer analyses.
  endpoint: https://mcp.sentry.dev/mcp
  auth: OAuth
  capabilities: list errors, read stack trace, resolve issue, analyze root cause
  formats: JSON-RPC 2.0 (MCP) -> MCP tool results
  rate_limit: Org quota
  pricing: Free with account
  tags: observability, errors
  health: up (2026-09-14T09:26:19.424+00:00)
  reliability: 90/100 (excellent, 6 probes)
  docs: https://docs.sentry.io/product/sentry-mcp/
- [Sentry MCP](https://agentnexus.app/api/public/registry/sentry-mcp): Error groups, stack traces and release health for debugging agents.
  endpoint: https://mcp.sentry.dev/mcp
  auth: OAuth 2.1
  tags: observability
  health: up (2026-09-14T09:25:44.668+00:00)
  reliability: 90/100 (excellent, 15 probes)
  docs: https://docs.sentry.io
- [Sequential Thinking MCP](https://agentnexus.app/api/public/registry/sequential-thinking-mcp-server): Structured step-by-step reasoning scaffold exposed as a tool.
  endpoint: npx -y @modelcontextprotocol/server-sequential-thinking
  auth: None (local stdio)
  capabilities: plan a task, decompose problem, structured reasoning
  formats: JSON-RPC 2.0 over stdio -> MCP tool results
  rate_limit: None
  pricing: Free
  tags: reasoning, planning
  health: unknown
  reliability: unproven
  docs: https://github.com/modelcontextprotocol/servers/tree/main/src/sequentialthinking
- [Sequential Thinking MCP](https://agentnexus.app/api/public/registry/sequential-thinking-mcp): Structured step-by-step reasoning scaffold exposed as an MCP tool.
  endpoint: npx -y @modelcontextprotocol/server-sequential-thinking
  auth: None
  capabilities: plan a task, structured reasoning, decompose a problem
  formats: MCP stdio -> MCP tool results
  rate_limit: local
  pricing: free / open source
  tags: reasoning, planning
  health: unknown
  reliability: unproven
  example: {"mcpServers":{"sequential-thinking":{"command":"npx","args":["-y","@modelcontextprotocol/server-sequential-thinking"]}}}
  docs: https://github.com/modelcontextprotocol/servers/tree/main/src/sequentialthinking
- [Stripe MCP](https://agentnexus.app/api/public/registry/stripe-mcp): Official MCP server for customers, payments, subscriptions and Stripe docs.
  endpoint: https://mcp.stripe.com
  auth: OAuth 2.1 / restricted key
  auth_params: Authorization in header
  capabilities: create a customer, issue a refund, read payments, manage subscriptions
  formats: MCP streamable http -> MCP tool results
  rate_limit: account-based
  pricing: free with account
  tags: payments, billing
  health: up (2026-09-14T09:25:40.388+00:00)
  reliability: 43/100 (poor, 3 probes)
  example: claude mcp add --transport http stripe https://mcp.stripe.com
  docs: https://docs.stripe.com/mcp
- [Supabase MCP](https://agentnexus.app/api/public/registry/supabase-mcp-server): Query, migrate and inspect a Supabase project through MCP tools.
  endpoint: npx -y @supabase/mcp-server-supabase@latest
  auth: Personal access token
  capabilities: query database, inspect schema, run migration, read logs
  formats: JSON-RPC 2.0 over stdio -> MCP tool results
  rate_limit: Project-dependent
  pricing: Free
  tags: database, postgres
  health: unknown
  reliability: unproven
  docs: https://supabase.com/docs/guides/getting-started/mcp
- [Supabase MCP](https://agentnexus.app/api/public/registry/supabase-mcp): Query and mutate Postgres, inspect schema, manage projects over MCP.
  endpoint: https://mcp.supabase.com/mcp
  auth: OAuth 2.1 / PAT
  capabilities: database-query, sql, schema-inspection
  formats: MCP JSON-RPC -> MCP content
  pricing: free
  tags: database, sql
  health: up (2026-09-14T09:25:51.498+00:00)
  reliability: 90/100 (excellent, 15 probes)
  docs: https://supabase.com/docs

## CLIs

- [AWS CLI](https://agentnexus.app/api/public/registry/aws-cli): Full programmatic control of every AWS service from one binary.
  endpoint: aws
  auth: IAM credentials / SSO
  capabilities: upload to s3, manage cloud resources, invoke a lambda, provision infrastructure
  formats: CLI args -> json
  rate_limit: service-based
  pricing: free CLI, paid services
  tags: cloud, devops
  health: unknown
  reliability: unproven
  example: aws s3 cp report.pdf s3://my-bucket/ --acl private
  docs: https://docs.aws.amazon.com/cli/latest/reference/
- [curl](https://agentnexus.app/api/public/registry/curl-cli): The universal fallback when no SDK or MCP server exists yet.
  endpoint: curl -sS -H 'Authorization: ...'
  auth: per target
  tags: http
  health: unknown
  reliability: unproven
  docs: https://curl.se/docs/manpage.html
- [Docker CLI](https://agentnexus.app/api/public/registry/docker-cli): Build, run and ship containers — the standard sandbox for agent-executed code.
  endpoint: docker
  auth: docker login
  capabilities: run code in a sandbox, build an image, deploy a container, isolate execution
  formats: CLI args -> stdout
  rate_limit: registry limits
  pricing: free tier
  tags: containers, devops
  health: unknown
  reliability: unproven
  example: docker run --rm -v $PWD:/app python:3.12 python /app/script.py
  docs: https://docs.docker.com/reference/cli/docker/
- [DuckDB CLI](https://agentnexus.app/api/public/registry/duckdb-cli): In-process analytical SQL over CSV, Parquet and JSON without a server.
  endpoint: duckdb
  auth: None
  capabilities: analyze a csv, query parquet, run analytical sql, data transformation
  formats: SQL -> stdout / parquet / json
  rate_limit: none
  pricing: free / open source
  tags: database, analytics
  health: unknown
  reliability: unproven
  example: duckdb -c "select count(*) from read_csv_auto('data.csv')"
  docs: https://duckdb.org/docs/stable/clients/cli/overview
- [ffmpeg](https://agentnexus.app/api/public/registry/ffmpeg-cli): Media transcoding an agent can drive deterministically from a prompt.
  endpoint: ffmpeg -i in.mp4 out.webm
  auth: none
  tags: media
  health: unknown
  reliability: unproven
  docs: https://ffmpeg.org/documentation.html
- [gh](https://agentnexus.app/api/public/registry/gh-cli): GitHub from the shell. gh pr create, gh issue list --json for parsing.
  endpoint: gh <command> --json
  auth: gh auth login
  tags: vcs, json-output
  health: unknown
  reliability: unproven
  docs: https://cli.github.com/manual
- [git](https://agentnexus.app/api/public/registry/git-cli): Version control operations agents need to inspect and change codebases.
  endpoint: git <command> [args]
  auth: SSH key or token
  capabilities: read repository, commit changes, create branch, diff code
  formats: CLI arguments -> stdout
  rate_limit: None
  pricing: Free
  tags: dev, git
  health: unknown
  reliability: unproven
  docs: https://git-scm.com/docs
- [ImageMagick](https://agentnexus.app/api/public/registry/imagemagick-cli): Resize, convert, composite and inspect images from the command line.
  endpoint: magick
  auth: None
  capabilities: resize an image, convert image format, crop an image, compress an image
  formats: image files -> image files
  rate_limit: none
  pricing: free / open source
  tags: images, media
  health: unknown
  reliability: unproven
  example: magick input.png -resize 800x600 output.jpg
  docs: https://imagemagick.org/script/command-line-processing.php
- [jq](https://agentnexus.app/api/public/registry/jq-cli): Stream-oriented JSON processor — the glue between two API calls.
  endpoint: jq
  auth: None
  capabilities: parse json, transform json, filter data, extract a field
  formats: stdin -> stdout
  rate_limit: none
  pricing: free / open source
  tags: json, core
  health: unknown
  reliability: unproven
  example: curl -s https://api.example.com | jq '.items[].id'
  docs: https://jqlang.github.io/jq/manual/
- [OpenSSL](https://agentnexus.app/api/public/registry/openssl-cli): Hashing, signing, key generation and TLS inspection from the shell.
  endpoint: openssl
  auth: None
  capabilities: hash a value, generate a key, sign data, inspect a certificate
  formats: CLI args / stdin -> stdout
  rate_limit: none
  pricing: free / open source
  tags: crypto, security
  health: unknown
  reliability: unproven
  example: openssl rand -hex 32
  docs: https://docs.openssl.org/master/man1/
- [Pandoc](https://agentnexus.app/api/public/registry/pandoc-cli): Universal document converter between markdown, docx, HTML, PDF and more.
  endpoint: pandoc
  auth: None
  capabilities: convert a document, markdown to pdf, docx to markdown, generate a report
  formats: files -> files
  rate_limit: none
  pricing: free / open source
  tags: documents, conversion
  health: unknown
  reliability: unproven
  example: pandoc report.md -o report.pdf
  docs: https://pandoc.org/MANUAL.html
- [psql](https://agentnexus.app/api/public/registry/psql-cli): Direct SQL access. psql -c "..." --csv gives agent-parseable output.
  endpoint: psql $DATABASE_URL -c
  auth: connection string
  tags: database
  health: unknown
  reliability: unproven
  docs: https://www.postgresql.org/docs/current/app-psql.html
- [ripgrep](https://agentnexus.app/api/public/registry/ripgrep-cli): Extremely fast recursive code and text search, respects .gitignore.
  endpoint: rg
  auth: None
  capabilities: search a codebase, find text in files, grep
  formats: CLI args -> stdout
  rate_limit: none
  pricing: free / open source
  tags: search, code
  health: unknown
  reliability: unproven
  example: rg -n 'createServerFn' src/
  docs: https://github.com/BurntSushi/ripgrep
- [sqlite3](https://agentnexus.app/api/public/registry/sqlite3-cli): Zero-config local SQL database, ideal for agent scratch state.
  endpoint: sqlite3 <file.db> '<sql>'
  auth: None (file permissions)
  capabilities: query database, run sql, store state, export data
  formats: CLI arguments / stdin SQL -> stdout (JSON with -json)
  rate_limit: None
  pricing: Free (public domain)
  tags: database, sql
  health: unknown
  reliability: unproven
  docs: https://sqlite.org/cli.html
- [Supabase CLI](https://agentnexus.app/api/public/registry/supabase-cli): Migrations, local stack, type generation and deployments for a Postgres backend.
  endpoint: supabase
  auth: Access token
  capabilities: run a migration, generate types, start a local database, deploy a function
  formats: CLI args -> stdout
  rate_limit: none
  pricing: free / open source
  tags: database, backend
  health: unknown
  reliability: unproven
  example: supabase db push
  docs: https://supabase.com/docs/reference/cli/introduction
- [Tesseract OCR](https://agentnexus.app/api/public/registry/tesseract-cli): Extract text from images and scans locally, no network round trip.
  endpoint: tesseract <image> <output-base> [options]
  auth: None
  capabilities: ocr image, extract text, parse scanned document
  formats: CLI arguments + image files -> Text / hOCR / TSV files
  rate_limit: Local CPU bound
  pricing: Free (Apache-2.0)
  tags: ocr, documents
  health: unknown
  reliability: unproven
  docs: https://tesseract-ocr.github.io/tessdoc/
- [yt-dlp](https://agentnexus.app/api/public/registry/yt-dlp-cli): Download audio, video and subtitles from thousands of sites.
  endpoint: yt-dlp
  auth: Optional cookies
  capabilities: download a video, extract audio, fetch subtitles, get a transcript
  formats: URL -> media files
  rate_limit: site-based
  pricing: free / open source
  tags: media, download
  health: unknown
  reliability: unproven
  example: yt-dlp -x --audio-format mp3 https://example.com/video
  docs: https://github.com/yt-dlp/yt-dlp#usage-and-options

## Notes

- Only approved entries are exposed publicly.
- health: result of the latest automated endpoint probe (92 entries listed).
- reliability: 0-100 score from uptime, latency and human verification.
- verified: a reviewer called the interface and confirmed it behaves as described.