Server4Agent for ChatGPT

com.server4agent/server4agent

Give any MCP-compatible AI assistant a builder for live, hosted web tools and workflows.

client:ChatGPT transport:streamable-http

Install Server4Agent in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.server4agent.com

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