Svix
Automation Free key (no card)
Documentation: docs.svix.com ยท Checked Sep 13, 2026
About
Svix is an API for sending webhooks reliably, handling retries, signing, logging, and a customer-facing dashboard for your users to manage their own endpoints. The free plan requires no credit card and includes a monthly message allowance, an embeddable app portal, and 30-day payload retention. The server is also open source under MIT if you prefer to self-host. SDKs cover JavaScript, Python, Go, Ruby, Java, PHP, and more.
Details
Free to start. You may need a free key, but no credit card.
Auth: Free key (no card)
Rate limit: Free plan: monthly message allowance included, no credit card required; check the pricing page for current volumes.
Verified: 2026-09-13
Best for: webhooks event delivery API products
Setup
- Sign up free and create an API key from the dashboard.
- Create an application for your customer or use case.
- Add an endpoint where webhooks should be delivered.
- Send a message with the create-message API.
- Verify signatures on the receiving end with an Svix SDK.
curl -X POST https://api.svix.com/api/v1/app/{app_id}/msg/ -H "Authorization: Bearer testsk_xxx" -H "Content-Type: application/json" -d '{"eventType": "invoice.paid", "payload": {"status": "paid"}}'Use cases
- Notify customer apps about payments, orders, or status changes.
- Give users a self-serve portal to manage their webhook endpoints.
- Replace fragile in-house webhook retry queues with a managed service.