earnrate for ChatGPT
io.github.cwasley/earnrate
Which credit card earns the most at a merchant, from your cards or every card, and why.
client:ChatGPT
transport:streamable-http
runtime:npm
Install earnrate in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.earnrate.dev
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs