Webhook Catcher

Webhook Catcher is a web-based service that generates temporary URLs to receive, display, and replay incoming HTTP requests from any service. It addresses the need for developers to quickly test and debug webhook deliveries without setting up their own endpoints or accounts.

It displays each request in real time, showing the method, headers with secrets redacted, query parameters, and body. Support for JSON, form data, and raw text views appears side by side, and unknown content types are preserved as raw text. A 30-day searchable and filterable history stores all captures. Any request can be replayed unchanged or after editing the body and headers. Important captures can be pinned to avoid expiration.

The wcat command-line tool creates an outbound connection that forwards captured requests directly to a local server such as localhost on port 3000, removing the need to open ports or configure tunnels. A built-in MCP server and token-scoped REST API allow AI coding agents such as Claude Code or Cursor to read captured requests directly for automated analysis.

No sign-up or configuration is required. A URL is minted with one click and becomes active immediately. The service works with any tool that can send HTTP requests, including Stripe, GitHub, Shopify, Slack, Twilio, PayPal, Discord, Linear, Vercel, Notion, OpenAI, Clerk, Resend, Supabase, SendGrid, and Square. It is free with no account needed and retains history for thirty days.