tools for ChatGPT

com.freedailypro/tools

61 text, security, converter, calculator, and PDF tools -- callable via MCP on one host.

client:ChatGPT transport:streamable-http

Install tools in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://utility-api-production-ebf2.up.railway.app/mcp

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