Webhook Guides
Practical guides for testing, debugging, and securing webhooks from real development workflows.
Webhook Signature Verification
How HMAC signatures protect webhooks, with raw-body verification, timing-safe comparison, timestamp tolerance, and Stripe/GitHub implementation examples.
Webhook Retries and Idempotency
How to handle at-least-once delivery, build idempotent handlers, manage provider retry behavior, and recover safely from failures.
How to Test Webhooks Locally
Two approaches to local webhook development — catch-and-inspect and live tunneling — with CLI setup, signature handling, and common failure fixes.
How to Debug Stripe Webhooks
End-to-end Stripe webhook debugging: endpoint setup, signature verification, API version gotchas, event identity, tunnel workflows, and common failure patterns.
Agentic Webhook Testing with MCP
Use CatchHook's MCP server from Claude Code, Cursor, or Windsurf to create endpoints, wait for traffic, inspect payloads, diagnose failures, and compare events — all from your editor.