DataForB2B MCP Server

An MCP server for the DataForB2B API — search and enrich companies and people (professional profiles), job postings, and social posts, directly from Cursor, Claude, or any other MCP-compatible client.

Tools

Full parameter reference: docs.dataforb2b.ai/api-reference.

Related MCP server: DataLayer MCP

Getting an API key

Sign up at dataforb2b.ai and grab your API key from the dashboard.

Install

Requires Python 3.10+. The recommended way to run it is with uvx, which needs no separate install step and always runs the latest commit on main:

uvx --from git+https://github.com/DataForB2B/dataforb2b-mcp dataforb2b-mcp

Or clone and install it with pip:

git clone https://github.com/DataForB2B/dataforb2b-mcp.git
pip install ./dataforb2b-mcp

Once published on PyPI, this collapses to plain uvx dataforb2b-mcp / pip install dataforb2b-mcp (the config examples below use the git form, which works right now).

Configure

Cursor

Add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global):

{
  "mcpServers": {
    "dataforb2b": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/DataForB2B/dataforb2b-mcp", "dataforb2b-mcp"],
      "env": {
        "DATAFORB2B_API_KEY": "your-api-key"
      }
    }
  }
}

Claude Desktop / Claude Code

Add to claude_desktop_config.json (Desktop) or run claude mcp add (Claude Code), using the same shape:

{
  "mcpServers": {
    "dataforb2b": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/DataForB2B/dataforb2b-mcp", "dataforb2b-mcp"],
      "env": {
        "DATAFORB2B_API_KEY": "your-api-key"
      }
    }
  }
}

Any other MCP client

Same command/args/env shape as above — every MCP client that supports stdio servers reads it the same way. Alternatively, run the server yourself and point your client at the process:

DATAFORB2B_API_KEY=your-api-key uvx --from git+https://github.com/DataForB2B/dataforb2b-mcp dataforb2b-mcp

or with the flag instead of the env var:

uvx --from git+https://github.com/DataForB2B/dataforb2b-mcp dataforb2b-mcp --api-key your-api-key

Development

git clone https://github.com/dataforb2b/dataforb2b-mcp.git
cd dataforb2b-mcp
uv sync
DATAFORB2B_API_KEY=your-api-key uv run dataforb2b-mcp

Inspect the server interactively with the MCP Inspector:

DATAFORB2B_API_KEY=your-api-key npx @modelcontextprotocol/inspector uv run dataforb2b-mcp

License

MIT