OneSchema MCP Server for ChatGPT

co.oneschema/mcp

MCP server that lets AI assistants use all OneSchema features exposed via the public API.

client:ChatGPT transport:streamable-http

Install OneSchema MCP Server in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.oneschema.co/mcp

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