The13f MCP Server

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add mcp -- uvx the13f-mcp

{
  "mcpServers": {
    "mcp": {
      "args": [
        "the13f-mcp"
      ],
      "command": "uvx"
    }
  }
}

[mcp_servers.mcp]
command = "uvx"
args = ["the13f-mcp"]

{
  "mcpServers": {
    "mcp": {
      "args": [
        "the13f-mcp"
      ],
      "command": "uvx"
    }
  }
}

{
  "mcpServers": {
    "mcp": {
      "args": [
        "the13f-mcp"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: THE13F_API_KEY (Free pf13f_ key from https://the13f.com/developers/. 100 calls/day, no credit card. Without it, every tool returns a structured free-signup-required response with the signup URL.), THE13F_API_BASE_URL (Override API base URL. Defaults to https://api.the13f.com. Used for local development against a running copy of the13f's gui_server.), THE13F_MCP_TIMEOUT (Per-request HTTP timeout in seconds. Minimum 5.). The author declared them in the registry entry; get the values from the project itself.