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)

Related MCP server: youbank-mcp

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