No webhook left behind.

Retryx receives webhooks for you, stores every one durably, delivers it to your servers at least once with automatic retries, and lets you inspect and replay anything that failed.

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How it works

From “sent” to “processed”, with a safety net in the middle

1
Receive
Point Stripe, GitHub, Shopify or your own service at a Retryx endpoint. We verify the provider’s signature on the raw body, then answer 202 only after the event is committed to PostgreSQL.
2
Deliver
A worker delivers each event to your destinations over HTTPS, signed so you can verify it. Failures retry with exponential backoff and jitter; exhausted deliveries go to a dead-letter queue, or fail over to a backup URL.
3
Recover
Search every event, see every attempt (status, latency, response body), and replay one delivery, a selection, or a whole time range once you have fixed the problem. History is never rewritten.

Why teams use it

Reliable by construction, inspectable by default

Durable ingestion

The event, its deliveries and the outbox record are written in one database transaction. If we said 202, it is stored, even if the queue is down. Queue outages are healed from PostgreSQL.

At-least-once with idempotency keys

Every request carries stable Retryx-Event-Id, Idempotency-Key and attempt headers so your handler can de-duplicate safely.

Retries you control

Exponential backoff with jitter, custom schedules, per-destination timeouts, concurrency and rate limits, pause and resume, and honouring of Retry-After.

Replay without rewriting history

Single, bulk, time-range and scheduled replays create new linked deliveries and an auditable operation. Original attempts stay exactly as they were.

Observability built in

Live metrics, latency percentiles, problem destinations, a searchable event explorer and a test console that sends real events through the real pipeline.

Safe outbound requests

Destinations are validated when saved and again on every delivery: no private, loopback or metadata addresses, DNS pinned against rebinding, redirects off by default.

Developer experience

Send an event. Verify the delivery.

Send a webhook

curl -X POST "$RETRYX_URL" \
  -H "Authorization: Bearer $RETRYX_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"id":"evt_123","type":"order.created","amount":4200}'

Verify Retryx’s signature

import { createHmac, timingSafeEqual } from 'node:crypto';

/** rawBody: Buffer|string exactly as received. header: value of the Retryx-Signature header. */
export function verifyRetryxSignature(rawBody, header, secret, toleranceSec = 300) {
  const parts = String(header ?? '').split(',').map((p) => p.trim().split('='));
  const t = parts.find(([k]) => k === 't')?.[1];
  const signatures = parts.filter(([k]) => k === 'v1').map(([, v]) => v);
  if (!t || !/^\d+$/.test(t) || signatures.length === 0) return false;
  if (Math.abs(Date.now() / 1000 - Number(t)) > toleranceSec) return false; // replay protection
  const expected = createHmac('sha256', secret).update(`${t}.`).update(rawBody).digest();
  return signatures.some((s) => {
    const got = Buffer.from(s, 'hex');
    return got.length === expected.length && timingSafeEqual(got, expected);
  });
}

// Express — capture the RAW body, do not use express.json() on this route
app.post('/webhooks/retryx', express.raw({ type: '*/*' }), (req, res) => {
  if (!verifyRetryxSignature(req.body, req.get('Retryx-Signature'), process.env.RETRYX_SIGNING_SECRET)) {
    return res.sendStatus(400);
  }
  // Delivery is at-least-once: de-duplicate on the stable Idempotency-Key header.
  const key = req.get('Idempotency-Key');
  // …process the event once per key…
  res.sendStatus(200);
});

Everything is also available over a REST API with scoped API keys and a generated OpenAPI reference.

Stop losing webhooks to someone else’s downtime.

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