Debug webhooks

A webhook is an HTTP callback that pushes event data to your endpoint the moment something happens. Instead of polling an API, the provider sends a signed POST payload to the URL you configure, letting services like Stripe, GitHub, or Slack keep your application in sync in real time.

Hooklistener is a complete webhook toolkit for developers. It combines Debug Endpoints for capturing and inspecting webhooks, Monitors for alerting when integrations go silent, Email Inboxes for converting emails to webhooks, and a CLI tool for tunneling payloads to your local development environment. Everything you need to debug, monitor, and forward webhooks.

Debug Endpoints are unique HTTPS URLs that capture every incoming HTTP request with full details—headers, body, query params, IP address, and TLS information. You can inspect requests in real-time, replay them to any destination, share inspection links with teammates, and keep up to 60 days of history on paid plans. They're perfect for debugging third-party integrations without touching your production code.

Monitors watch your Debug Endpoints for inactivity and send alerts when webhooks stop arriving. You configure a timeout threshold (1-1440 minutes), and if no requests arrive within that window, Hooklistener notifies you via Email and/or Slack. Cooldown periods prevent alert spam, and you can track alert history and last-request timestamps to diagnose issues quickly.

Email Inboxes let you create unique email addresses (like notifications@hookinbox.com) that automatically convert incoming emails into HTTP webhooks. When an email arrives, Hooklistener parses the content (from, to, subject, body, attachments) and forwards it to your configured HTTP endpoints. Perfect for automating workflows triggered by transactional emails, notifications, or alerts.

The Hooklistener CLI lets you receive live webhook payloads on your local machine. After authenticating with a simple device code flow, you can create a tunnel that forwards requests from any Debug Endpoint to localhost. It works behind firewalls, requires no ngrok setup, and gives you full request details including headers, body, and cookies for local debugging.

Teams choose Hooklistener for the complete toolkit approach:

• Debug Endpoints with up to 60-day retention, request replay, and team sharing—not just temporary request bins.
• Monitors that alert you via Email and Slack when integrations break, before customers notice.
• Email Inboxes that convert any email into webhooks for workflow automation.
• CLI tunneling for local development without complex ngrok configurations.

Yes. The Free plan includes 1 Debug Endpoint with 1 day of request history—enough to get started and explore the platform. When you need more, the Pro plan adds unlimited requests, 10 endpoints, 14-day retention, CLI access, and Email Inboxes. Sign up and try it here.