RocketReach MCP — Cloudflare Worker

A remote Model Context Protocol server for the RocketReach API, deployed as a Cloudflare Worker.

Exposes three tools that any MCP-compatible client (Claude Desktop, Cursor, Windsurf, etc.) can call:

Why a Cloudflare Worker?

The server uses createMcpHandler from the Cloudflare Agents SDK — a stateless MCP handler that runs in a plain Worker (no Durable Objects needed). Each request is fully self-contained; the RocketReach API key is read directly from the incoming ROCKETREACH_API_KEY header, so multiple users can share the same deployment with different keys.

Related MCP server: @louis030195/apollo-io-mcp

Quick deploy

# 1. Clone and install
git clone https://github.com/balazsnemeth/rocketreach-mcp-worker.git
cd rocketreach-mcp-worker
npm install

# 2. Log in to Cloudflare (first time only)
npx wrangler login

# 3. Deploy
npm run deploy

The worker is now live at https://rocketreach-mcp.<your-subdomain>.workers.dev/mcp.

Optional: store a default API key as a secret

If you want the worker to work without a per-request header (e.g. for personal use), store your key as a Worker secret:

npx wrangler secret put ROCKETREACH_API_KEY

Client configuration

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS):

{
  "mcpServers": {
    "rocketreach": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://rocketreach-mcp.<your-subdomain>.workers.dev/mcp",
        "--header",
        "ROCKETREACH_API_KEY:<your-rocketreach-api-key>"
      ]
    }
  }
}

Cursor / Windsurf

Add to your MCP settings file:

{
  "rocketreach": {
    "command": "npx",
    "args": [
      "mcp-remote",
      "https://rocketreach-mcp.<your-subdomain>.workers.dev/mcp",
      "--header",
      "ROCKETREACH_API_KEY:<your-rocketreach-api-key>"
    ]
  }
}

Note: mcp-remote proxies the local stdio transport (used by MCP clients) to the remote HTTP endpoint. Install it globally if needed: npm install -g mcp-remote.

Tools reference

search_people

Search for people in RocketReach. Returns basic profile information — no contact details are consumed from your plan's credit quota.

Parameters

At least one of name, current_employer, title, or location is required.

Response shape

{
  "total_results": 42,
  "start": 1,
  "next": 21,
  "profiles": [
    {
      "id": 12345678,
      "name": "Elon Musk",
      "current_employer": "Tesla",
      "current_title": "CEO",
      "location": "Austin, TX",
      "linkedin_url": "https://www.linkedin.com/in/elonmusk"
    }
  ]
}

lookup_person

Get a full person profile including verified contact information. Uses one credit per unique lookup.

Parameters

lookup_type values

Response includes id, name, current_employer, current_title, location, linkedin_url, status, contact_info (emails, phones, work email), job_history, education, skills, and social_profiles.

lookup_company

Get detailed company information.

Parameters

lookup_type values

Response includes id, name, domain, website, linkedin_url, description, industry, employees, employee_range, revenue, revenue_range, city, state, country, address, founded_year, company_type, ticker, and logo_url.

Local development

npm run dev

The worker is served at http://localhost:8787. Point mcp-remote at it for local testing:

{
  "rocketreach": {
    "command": "npx",
    "args": [
      "mcp-remote",
      "http://localhost:8787/mcp",
      "--header",
      "ROCKETREACH_API_KEY:<your-key>"
    ]
  }
}

API key priority

1. ROCKETREACH_API_KEY request header (sent by mcp-remote --header) — per-user, per-request

2. ROCKETREACH_API_KEY Worker secret — shared fallback (set via wrangler secret put)

If neither is present the worker returns 401.

Tech stack

• Cloudflare Workers — edge runtime

• Cloudflare Agents SDK — createMcpHandler for stateless MCP transport

• @modelcontextprotocol/sdk — MCP protocol

• Zod — tool input validation

• TypeScript

License

MIT