CompanyData MCP server

Model Context Protocol server that exposes the CompanyData HTTP API as tools: company search, company export (enrich), and location lookup (cities).

Product overview and setup guide: companydata.com/product/mcp-server/.

OpenAPI contract: https://companydata.com/openapi.json.

Hosted (no install)

Connect your MCP client to https://companydata.com/mcp/ and send your API key in the x-api-key header (get a key).

Claude Code:

claude mcp add --transport http companydata https://companydata.com/mcp/ --header "x-api-key: your-api-key-here"

Cursor (.cursor/mcp.json):

{
  "mcpServers": {
    "companydata": {
      "url": "https://companydata.com/mcp/",
      "headers": { "x-api-key": "your-api-key-here" }
    }
  }
}

Local (npx)

Requires Node.js 18+.

{
  "mcpServers": {
    "companydata": {
      "command": "npx",
      "args": ["-y", "@companydata/mcp-server"],
      "env": { "COMPANYDATA_API_KEY": "your-api-key-here" }
    }
  }
}

Build from source

git clone https://github.com/companydatacom/companydata-mcp-server.git
cd companydata-mcp-server
npm install
npm run build

Environment

Copy .env.example to .env for local testing with npm run dev (load env in shell: set -a && source .env && set +a && npm run dev).

Tools

Cursor & Claude Desktop

1. Build the project (npm run build).
2. In your MCP host (e.g. Cursor Settings → MCP or Claude Desktop config), add a server (adjust paths):

{
  "mcpServers": {
    "companydata": {
      "command": "node",
      "args": ["/ABSOLUTE/PATH/TO/companydata-mcp-server/dist/index.js"],
      "env": {
        "COMPANYDATA_API_KEY": "your-api-key-here",
        "COMPANYDATA_API_BASE_URL": "https://app.companydata.com"
      }
    }
  }
}

3. Reload MCP / restart Cursor if needed.

Smoke checklist

• Server starts without errors (npm run build && node dist/index.js with env set).
• MCP host lists tools: company_search, company_enrich, field_lookup.
• company_search returns 200 payload for a simple query (e.g. search=BoldData).
• field_lookup returns city suggestions (e.g. search=amst).

Development without a separate build step:

{
  "mcpServers": {
    "companydata": {
      "command": "npx",
      "args": ["tsx", "/ABSOLUTE/PATH/TO/companydata-mcp-server/src/index.ts"],
      "env": {
        "COMPANYDATA_API_KEY": "your-api-key-here",
        "COMPANYDATA_API_BASE_URL": "https://app.companydata.com"
      }
    }
  }
}

CLI

After npm run build, the package exposes companydata-mcp when linked (npm link) or when node_modules/.bin is on PATH.

Distribution

• Hosted: https://companydata.com/mcp/ (Streamable HTTP, stateless). The website serves the same tools from a copy of src/tools.ts.
• npm: @companydata/mcp-server.
• Official MCP Registry: com.companydata/mcp (see server.json).

License

ISC