MCP server · reference verified

Terraphim AI MCP Server

Local-first knowledge graph search engine and context server for Claude Code, Cursor, and MCP assistants.

Terraphim AI is a local-first privacy-preserving knowledge graph and search engine built in Rust and WebAssembly. It exposes local knowledge graphs and semantic code search directly to AI coding assistants (Claude Code, Cursor, and MCP clients) without cloud exfiltration. Zero API key, on-device indexing, and role-based context engineering.

endpoint: stdio: terraphim-agent --mcp
auth: none
capabilities: search_knowledge_graph · extract_paragraphs · role_context
tags: knowledge-graph · local-first · rust · claude-code · cursor · search · context
docs: https://terraphim.ai/capabilities/mcp-server/
machine-readable: /api/public/registry/terraphim-ai-mcp

Follow this tool

Get an alert when Terraphim AI MCP Server goes down, comes back, or quietly changes shape (response schema or tool list). Free for up to 3 tools. Pro: 100 tools + webhooks for your agents.

Get a key in one call

No account, no card

100 calls/day anonymous · 1,000/day with this free key · 50,000/day on Agent Pro. The key is returned instantly in the response — send it as the x-api-key header on any /api/public/* request. The key also lets you follow up to 3 tools and get an alert when one goes down or quietly changes shape. Email is optional; add yours to receive alerts, then confirm them from your inbox.

tested example call

curl -s -X POST https://agentnexus.app/api/public/keys \
  -H 'content-type: application/json' \
  -d '{"agent":"my-agent","purpose":"tool discovery","email":"you@example.com"}'

Use it from your agent

Point any MCP-capable agent (Claude, Cursor, your own) at the no-auth endpoint — it can then find Terraphim AI MCP Server and the rest of the registry on its own:

tested example call

claude mcp add --transport http agent-nexus https://agentnexus.app/api/public/mcp

Agents can discover Terraphim AI MCP Server through the Agent Nexus MCP server, /llms.txt or the discovery API.