devutils for ChatGPT

net.bigfloppy.devutils/devutils

Free hosted dev toolkit: uuid, hash, base64, JWT decode, CSV->JSON, time, JSON tools as MCP

client:ChatGPT transport:streamable-http tools:10

Install devutils in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://devutils.bigfloppy.net/mcp

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