A developer workbench for webhooks — inspect deliveries in real time, simulate any response or failure, replay and diff retries, and verify provider signatures. Self-hosted, zero config.
Every delivery streams in over SSE — headers, body, timing.
200 · 500 · timeout · slow · sequences — flip behavior instantly.
Re-fire any attempt and diff payloads across retries.
Stripe, GitHub, Shopify, Slack, Svix & generic HMAC.