General Hook
Free instant API endpoint and webhook tests for every dev
General Hook launched on March 22, 2026 with 3 votes, #3,303 of 23,380 launches that month and more than 50% of that year's launches.
What it does
General Hook is a free mock API server and webhook inspector that runs entirely in your browser via WebAssembly. Instantly build and test APIs, import OpenAPI or Postman specs, or capture live webhooks — no account, no backend, no setup required.
Free in-browser mock API server and webhook inspector. Build and test APIs, import OpenAPI or Postman specs, and capture live webhooks — no account, no backend.
Define your API routes manually. Set the HTTP method, path, and status code for each endpoint. Click Edit body on any route to set the JSON response it will return. Upload an existing API spec or export file. Routes are extracted automatically. Build an OpenAPI 3.0 spec from scratch. Add endpoints, set status codes, and edit response bodies. The YAML updates live — copy or download it to share with your team or import into other tools. Boots a server that captures every incoming HTTP request and displays it in a live dashboard. Paste the public URL into any service's webhook settings to inspect payloads in real time — no configuration needed. TERMINAL OUTPUT LOADING ... COPY OPEN DISMISS…from generalhook.com
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