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ChatGPT ChatStack - App Cost Estimator submit_prd

How to: ChatGPT ChatStack - App Cost Estimator submit_prd

client:ChatGPT transport:streamable-http tool:submit_prd

Add ChatStack - App Cost Estimator to ChatGPT

  1. 01

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

https://mcp.chatstack.app/mcp
  1. 02

    Save the file and restart ChatGPT.

  2. 03

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

  3. 04

    If nothing happens, check the server is running and that ChatStack - App Cost Estimator'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

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 5 November 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.