Connect Pentonym

Get an API key. A first-time address gets 10 free checks; the bonus is once per address, so a second key for the same email starts empty and will tell you so. Works over the API and MCP.

Your key (shown once — save it):

Add the MCP server to Claude / Cursor / ChatGPT:

{ "mcpServers": { "pentonym": {
    "url": "https://mcp.pentonym.com/mcp",
    "headers": { "Authorization": "Bearer YOUR_KEY" }
} } }

Or call the API: /docs

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