Harny Actions for ChatGPT

ai.harny/actions

Book meetings on each user's own calendar from inside your app. Also email and Slack posts; undo.

client:ChatGPT transport:streamable-http tools:1

Install Harny Actions in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.harny.ai/actions

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