Tallymeter for ChatGPT

com.tallymeter/tallymeter

Time tracking and invoicing for AI agents and their humans: track, log and bill work by agent.

client:ChatGPT transport:streamable-http

Install Tallymeter in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://tallymeter.com/mcp

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