Every event,
to your URL.
Subscribe a URL to your platform events — deploys, database failover, checks going down, anything. koigrid delivers a signed JSON payload, verifies it with HMAC-SHA256 and retries with backoff. The built-in, flat-rate alternative to Svix and Vercel webhooks.
Your systems need to react to platform events — without polling
When a deploy goes live, a database fails over, or a check goes down, you want your own systems to know instantly — to post to Slack, kick off a pipeline, or page on-call. Polling an API is wasteful and slow. koigrid Webhooks push each event to a URL you register, signed with a per-webhook secret so you can prove it came from us, and retried automatically (5 attempts over ~2h) if your endpoint is briefly down. Destinations are validated against SSRF, so a webhook can never be pointed at an internal host.
How koigrid compares
| koigrid | Svix | |
|---|---|---|
| Pricing | Flat rate (included) | Per message / MAU |
| Signed payloads (HMAC-SHA256) | Yes | Yes |
| Automatic retries + backoff | Yes (5 attempts, ~2h) | Yes |
| Delivery history / status | Yes | Yes |
| SSRF protection | Yes | Partial |
| Events from your infra | Native | You publish them |
| Manage by AI agent | Native (API + CLI) | API |
From public docs, 2026. koigrid webhooks fire on any platform event and are included in your plan — no per-message bill.
Reliable, signed delivery
Subscribe to any event
Wildcards too — `*` for everything or `app.*` for a whole domain.
Signed with HMAC-SHA256
Each webhook has its own secret; verify the `X-Koigrid-Signature` header to prove authenticity.
Automatic retries
Backoff over 5 attempts (~2h) if your endpoint is down — no lost events.
Delivery history
Every attempt is logged with status, response code and error.
Anti-SSRF
Destinations are checked — a webhook can never target an internal/private host.
Agent-native
Create and manage webhooks from Claude Code or any LLM via API + CLI.