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ChatGPT send16 mcp list_workspaces

How to: ChatGPT send16 mcp list_workspaces

client:ChatGPT transport:streamable-http tool:list_workspaces

Add send16 mcp to ChatGPT

  1. 01

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

https://mcp.send16.com/mcp
  1. 02

    Save the file and restart ChatGPT.

  2. 03

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

  3. 04

    If nothing happens, check the server is running and that send16 mcp'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

send16 mcp will not start until these are set, so list_workspaces never becomes available.

  • SEND16_API_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.