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ChatGPT DDG Agent Services ddg_list_models

How to: ChatGPT DDG Agent Services ddg_list_models

client:ChatGPT transport:streamable-http tool:ddg_list_models

Add DDG Agent Services to ChatGPT

  1. 01

    Open Settings → Connectors → Advanced → Developer mode and merge this in. Keep any servers already there.

https://mcp.daedalusdevelopmentgroup.com/mcp
  1. 02

    Save the file and restart ChatGPT.

  2. 03

    Ask for something ddg_list_models does. ChatGPT lists the server's tools on connect and calls ddg_list_models itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that DDG Agent Services's identifier in your config matches the one above exactly.

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs

Set these first

DDG Agent Services will not start until these are set, so ddg_list_models never becomes available.

  • DDG_AGENT_ID
  • DDG_PRIVATE_KEY

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.