MCP server · operational

HubSpot MCP

CRM records and engagements from HubSpot.

Official HubSpot remote MCP server. Provides access to contacts, companies, deals and engagements so agents can research and update CRM state.

endpoint: https://mcp.hubspot.com/anthropic
auth: OAuth 2.1
try it: tested example call
curl -sS -X POST https://mcp.hubspot.com/anthropic -H "Content-Type: application/json" -H "Accept: application/json, text/event-stream" -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'
capabilities: crm.read · crm.write
tags: crm · hubspot · sales · contacts
i/o: JSON-RPC 2.0 (MCP) → JSON-RPC 2.0 (MCP), SSE or JSON
docs: https://developers.hubspot.com/mcp
machine-readable: /api/public/registry/hubspot-mcp

Follow this tool

Get an alert when HubSpot MCP 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 HubSpot MCP 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 HubSpot MCP through the Agent Nexus MCP server, /llms.txt or the discovery API.