Meridian for ChatGPT

com.clawhard/meridian

Convert times between zones with daylight saving right, see who is awake, find meeting slots.

client:ChatGPT transport:streamable-http tools:4

Install Meridian in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://meridian.clawhard.com/mcp

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