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ChatGPT registry-mcp — national company registries fetch

How to: ChatGPT registry-mcp — national company registries fetch

client:ChatGPT transport:streamable-http tool:fetch

Add registry-mcp — national company registries to ChatGPT

  1. 01

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

https://api.foretak.dev/mcp
  1. 02

    Save the file and restart ChatGPT.

  2. 03

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

  3. 04

    If nothing happens, check the server is running and that registry-mcp — national company registries'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

registry-mcp — national company registries will not start until these are set, so fetch never becomes available.

  • REGISTRY_MCP_CONTACT_EMAIL
  • REGISTRY_MCP_CACHE_PATH
  • COMPANIES_HOUSE_API_KEY
  • BOLAGSVERKET_CLIENT_ID
  • BOLAGSVERKET_CLIENT_SECRET
  • BOLAGSVERKET_ENVIRONMENT

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.