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High-Throughput Webhook Reliability Proxy

Never Lose a Stripe or Shopify Webhook Again.

Ingest webhooks in sub-3ms with zero server blocking. Automatically withstand downstream downtime with jitter exponential backoff and recover failed payloads with 1-click DLQ replay.

Open Developer PortalInteractive API Docs & SandboxB2B Pricing
⚡ < 3ms202 Ingress Ack
99.999%Delivery SLA
Full JitterBackoff Retries
1-ClickDLQ Audit & Replay

Zero-Code Drop-In Webhook Gateway

Route your webhook traffic through Relay in under 30 seconds

❌ Direct Ingress (Unprotected App Server)High Risk
https://api.yourdomain.com/webhooks/stripe

15s Stripe hard timeout -> Drop Event -> Missing customer fulfillment

✅ Kustomcode Relay (Buffered Enterprise Ingress)Protected <3ms
https://relay-production-54ca.up.railway.app/v1/in/ep_live_99f2b8a7c1

2.1ms 202 Accepted -> BullMQ queued -> Zero lost revenue

Live Pipeline Latency & Failover Benchmark
Target Event: checkout.session.completed
Downstream Node Health:
Direct Routing Pipeline
SenderTarget Server 200 OK (Latency: 280ms)
Incoming request directly ties up web worker threads, risking thread pool exhaustion under spikes.
Kustomcode Relay Ingress Pipeline
Sender⚡ Ingress (202 / 2ms)BullMQ Jitter Delivered Cleanly
Sender receives instant 202 Accepted acknowledgement in under 3ms. Background worker cleanly dispatches payload.

Built For Mission-Critical Scale

Enterprise Resilience Without the Server Overhead

Direct webhook routing ties up your main thread pool and leads to cascading timeouts. Kustomcode Relay buffers payloads instantaneously into dedicated Redis queues.

Zero-Block 202 Ingress

Raw byte buffers are immediately pushed to private Railway Redis queues and acknowledged with 202 Accepted in under 3ms, preventing sender timeouts from Stripe and Shopify.

  • Sub-3ms ingestion response
  • Original headers preserved
  • DDoS & burst absorption

Full Jitter Backoff

Transient 5xx errors and network hiccups are retried using randomized exponential backoff. Your backend is never bombarded by a thundering herd when rebooting after a release.

  • Configurable retry counts (1-10)
  • Full jitter randomization
  • Custom HTTP timeout boundaries

1-Click DLQ Recovery

If an endpoint remains down after all retries, the payload is safely preserved in an immutable Dead-Letter Queue with complete headers and bodies for forensic inspection and 1-click replay.

  • Full request & response logging
  • Single or bulk event replays
  • Programmatic REST Replay API

Integrate in 30 Seconds with Ready-to-Use SDKs

Explore our interactive developer documentation complete with HMAC verification snippets for TypeScript, Python, and Go, plus a live testing sandbox.

Explore Interactive API DocsLaunch Live Dashboard