This post is quite disingenuous. Both the title and body talk about it being free, but the actual readme on the repo says:

> […] default CPU limit on Workers is too small for it. wrangler.jsonc raises it, and raising it needs the paid plan, which is a few dollars a month. I haven't tried the free plan.

https://github.com/finereli/whatsapp-mcp/tree/64f1b3017931e4...