I used the old RequestBin - it was a great tool. But always returning 200 OK, was making it difficult for me to use. Some integrations/webhook need a specific response body otherwise they fail.

I ended up creating https://putsreq.com, so I could programmatically configure my responses.

Are you planning to allow custom responses in this new version of RequestBin?

Something that I learned with PutsReq: throttling is a must. PutsReq is very often "bombarded" with Salesforce webhook calls (probably because of some non-sense retry logic).