Stripe, GitHub, Shopify, and your own services all send webhooks that quietly stop working — a bad deploy, an expired secret, a downstream timeout. Seiri watches your webhook handlers in real time, logs every delivery, and alerts you the moment one fails.
Webhook monitoring is knowing — in real time, not when a customer emails you — whether the webhooks flowing through your systems are actually being processed correctly. A webhook can arrive at your server and still fail: your handler throws, a downstream call times out, a bad deploy breaks the parsing logic, or the job silently no-ops.
Seiri monitors this the same way it monitors cron jobs and background tasks: your handler pings Seiri when it finishes processing a webhook event — success or fail. If that ping doesn't arrive, or arrives marked as a failure, Seiri alerts you immediately. No polling, no guessing from provider-side delivery logs that stop at your server's door.
An unhandled exception, a database connection blip, or a bad deploy — the sender sees a failed delivery, but nothing tells you unless you're watching your own logs.
A slow downstream API call or a lock contention issue makes processing take too long. The provider may retry, or may not — either way, the event is stuck.
Returns 200 so the sender is satisfied, but a guard clause, a bad match, or a null field means the actual work — updating a record, sending an email — never happens.
Signature verification starts rejecting every event. From the provider's side, delivery attempts look normal — your handler is silently rejecting all of them.
One ping from the end of your handler is all it takes.
Every ping is recorded the instant it arrives — timestamp, status, response code, and latency, in one timeline per monitor. No need to grep your own server logs to find out what happened at 3am.
Two distinct signals, tracked separately: an explicit failure your handler reports, and a missed event — no ping at all inside the expected window. A missing webhook and a failing one usually have different causes; Seiri doesn't collapse them into one status.
When a provider retries a delivery, each attempt shows up as its own entry in your log — so you can see a failure, the retry, and whether it eventually succeeded, in order. Seiri doesn't orchestrate retries itself; for that, use the provider's own retry/redelivery tools and watch the result land here.
Attach your handler's outcome — status code, latency, error message — to each ping. Spot a pattern of slow responses or a specific error code spiking before it becomes an outage.
Pass along the event payload (or just the fields that matter) and selected headers with your ping, and inspect them per log entry — useful for confirming which record, customer, or event ID a given failure actually belongs to.
Slack, Discord, email, SMS, or a custom webhook of your own — configurable per monitor, with a grace period so one slow response doesn't page you at 3am for nothing.
Your webhook URL doesn't change. Nothing about how Stripe, GitHub, or Shopify delivers to you changes. You add one outbound ping at the end of the handler you already have.
Same idea for a GitHub Actions webhook receiver, a Shopify order-created handler, or any internal service-to-service webhook you own — one ping, wherever the handler already returns.
Know immediately if invoice.paid or customer.subscription.updated handlers start failing — before it shows up as a billing discrepancy.
Catch a CI webhook receiver that silently stopped triggering deploys, instead of noticing when a branch hasn't deployed in three days.
Get alerted the moment orders/create or fulfillments/update processing breaks — before orders start piling up unfulfilled.
Being direct about this matters more than sounding impressive.
Stripe, GitHub, and Shopify still deliver directly to your own endpoint. Seiri never sits in that path, so it can't slow down or break the actual delivery — even if Seiri itself were briefly unreachable, your webhook still arrives.
It stores the outcome your handler reports, not a queryable copy of the raw webhook body to re-fire on demand. For redelivery, use the sending provider's own tools — Seiri will show you whether the redelivered attempt succeeded.
| Grepping server logs | Seiri | |
|---|---|---|
| Finding out something broke | When someone tells you, or you happen to check | Alert fires within your configured grace period |
| Cross-deploy history | Depends on your log retention and search tooling | Per-monitor timeline, independent of your app's own logs |
| Distinguishing "failed" from "never ran" | Requires you to build and maintain that logic yourself | Built in — missed vs. failed are separate, first-class statuses |
| Setup cost | A logging pipeline, a dashboard, an alerting integration | One HTTP call at the end of your handler |
Same push/heartbeat model, applied to other kinds of scheduled and background work.
Know the moment a scheduled job stops running
Push-based check-ins for any long-running process
Queues, workers, and async task pipelines
Alert when an expected signal never arrives
Check in without outbound HTTP access
Catch CronJobs that never fire or hang
Webhook monitoring is knowing, in real time, whether the webhooks your systems send or receive are actually being processed — not just that a request happened. With Seiri, your webhook handler pings Seiri when it finishes processing an event, so you get a live log of every delivery, an alert the moment one fails, and visibility into failures you'd otherwise only find when a customer complains.
No. Seiri never proxies or intercepts the actual webhook delivery — Stripe, GitHub, Shopify, or your own services still hit your endpoint directly. Your handler code sends one extra ping to Seiri (success or fail) after it processes the event. This means Seiri can't break your webhook delivery even if it's briefly unreachable, and there's nothing to reconfigure at the sender's end beyond your own endpoint.
No — Seiri doesn't store or re-send the original request from Stripe, GitHub, or Shopify, and it isn't a queue or proxy in that delivery path. What it does store is the outcome your handler reports (success, fail, and any payload/status code you choose to attach), so you can see exactly when and how something broke. If you need the sender to redeliver the original event, use that provider's own retry/redelivery tools — Seiri will show you whether the redelivered attempt succeeded.
Two distinct signals: a handler that explicitly reports failure (an error, an exception, a bad response from a downstream call), and a handler that goes silent — no ping arrives inside the expected window at all. Seiri tracks both separately, because a missing webhook and a failing one usually have different root causes.
Provider-side logs show whether the request reached your server and what HTTP status you returned — useful, but they stop at your door. Seiri logs what happened after that: whether your handler actually finished the work it was supposed to do, with your own status and payload attached, and alerts you the moment that stops happening.
No. Your existing webhook URL stays exactly as it is, pointed at your own server. You add one outbound ping to Seiri from inside your existing handler, after it finishes processing.
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