list_titles

Pack: ecfr · Endpoint: https://gateway.pipeworx.io/ecfr/mcp

List all 50 titles of the US Code of Federal Regulations (Title 1 General Provisions … Title 50 Wildlife and Fisheries), with currency dates. This is the index for the title filter in search_regulations. Keyless.

Example call

curl -X POST https://gateway.pipeworx.io/ecfr/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"list_titles","arguments":{}}}'

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "ecfr": {
      "url": "https://gateway.pipeworx.io/ecfr/mcp"
    }
  }
}

See Getting Started for client-specific install steps.