Launching today

Cosmic Hook — Webhook inspector & replay

Launching today

Capture webhooks, inspect payloads, replay safely

2 followers

Capture webhooks, inspect payloads, replay safely

2 followers

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Testing and QA software

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Observability tools

Cosmic Hook captures incoming webhooks so you can inspect headers and body, copy clean cURL, and replay to your app. Free tier to start; Developer and Pro for teams. SSRF-safe replay and sensitive header redaction before storage. Try a temporary debug URL without signing up.

Cosmic Hook — Webhook inspector & replay gallery image

Free Options

Launch tags:API•SaaS•Developer Tools

Launch Team / Built With

Maker

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Hey Product Hunt 👋 I built Cosmic Hook because I kept wasting time digging through logs when Stripe, GitHub, or Shopify webhooks misbehaved. You get a dedicated ingest URL, a live event feed, one-click cURL, and replay to your destination—with SSRF checks and redacted secrets in storage. You can try it without an account (temporary debug URL), or sign up free for 500 events / 10 replays per month. Would love your feedback: • What’s missing for your daily webhook workflow? • Which integration should we document first? Thanks for checking it out — happy to answer anything in the comments.

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24h ago