Built for developers, by developers.
Live API Inspector is an open debugging tool for webhooks, callbacks, and any HTTP traffic that needs to be seen in real time.
Why we built this
Webhooks are the plumbing of modern software. Payment providers, CI systems, chat platforms, and hundreds of other services use them to notify your application that something happened. But debugging them has always been painful — you fire a request, guess whether it arrived, and dig through logs to find out what the payload even looked like.
Live API Inspector turns that guesswork into a live, inspectable workspace. Create an endpoint, point your webhook at it, and watch every request stream in instantly. See the headers, body, query params, and metadata — then replay it to test a fix.
The principles
- No signup required. Create an endpoint in seconds and start receiving requests.
- Real-time by default. WebSocket streaming, not polling.
- Developer-first. Curl, PowerShell, and Postman snippets on every endpoint.
- Privacy-conscious. Captures persist to your own server's disk — never sent to a third party.
Technology
Built with a NestJS backend (TypeScript, WebSocket gateway, modular services) and a Next.js frontend (App Router, React 18, TypeScript, CSS modules). No external analytics, no tracking pixels, no third-party SDKs phoning home.
Status
Currently in active development. All endpoints are free while we build out the product. Feedback and bug reports are welcome via the contact page.