company-brain-mcp

company-brain-mcp

Enables AI agents to query and manage company knowledge from a Supabase GraphRAG store, including accounts, meetings, people, org hierarchy, product docs, and call logs.

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README

company-brain-mcp

MCP server exposing the Company Brain (Supabase GraphRAG knowledge store) to AI agents.

Runs three transports simultaneously:

  • Streamable HTTP (POST /mcp) — Claude web (claude.ai) and Claude Code HTTP entries
  • Legacy SSE (GET /sse + POST /messages) — n8n mcpClientTool (v2.15)
  • stdio (dist/index.js) — local Claude Code via .mcp.json

Tools (16)

Account-centric:

  • get_account_summary
  • list_account_meetings
  • get_account_facts
  • get_account_health_signals
  • get_account_context_graph
  • find_accounts_by_tag
  • find_similar_accounts
  • find_similar_accounts_by_description

Retrieval / graph:

  • search_meeting_chunks (hybrid HNSW + FTS + tag)
  • search_people
  • get_meeting_transcript
  • get_person_meetings
  • get_org_hierarchy
  • query_tag_trends
  • search_product_docs
  • search_call_log (RingCentral calls by phone/person/direction)

Setup

npm install
npm run build

Environment

Create /etc/brain-mcp/env (chmod 600) or an .env:

SUPABASE_URL=https://<project>.supabase.co
SUPABASE_SERVICE_ROLE_KEY=<service role key>
GEMINI_API_KEY=<gemini key>
MCP_API_KEY=<openssl rand -hex 32>
MCP_PORT=3100
ALLOWED_ORIGINS=https://claude.ai,https://<n8n-host>
GOFLEET_ORG_ID=<org uuid>

brain must be listed in Supabase Dashboard → Settings → API → Exposed Schemas.

Run

npm run start        # stdio (local Claude Code)
npm run start:http   # HTTP + SSE server on MCP_PORT

Production (PM2):

pm2 start ecosystem.config.cjs
pm2 save && pm2 startup

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