Payload Peek

A local mock-server & webhook inspector that runs on your phone — no ngrok, no cloud.

Developing against webhooks is awkward because the sender needs a public URL and your machine does not have one. The usual answer is a tunnel to localhost, which means a third party sits in the middle of your payloads and the URL changes every restart.

A mock server that runs on the device you already carry removes the tunnel from the loop for the case that matters most — seeing what a provider actually sends, which is very often not what the documentation describes. Inspecting the raw request is the step that resolves most integration disputes, because the headers and the exact body shape are where the disagreement lives.