Svix is an open source webhooks-as-a-service platform that handles the complex infrastructure work of reliable webhook delivery: automatic retries, failure tracking, payload signing, and a developer portal for your users to manage their webhook endpoints.
The Problem
Building webhook delivery in-house means implementing retry queues, exponential backoff, payload signing, failure dashboards, and eventually a self-service portal so customers can manage their own endpoints. Each of these is non-trivial to build correctly. Custom webhook implementations commonly have gaps in timeout handling, ordering, and replay functionality that only surface under load.
How Svix Solves It
Svix packages everything a production webhook system needs into a single platform. Send a webhook with one API call; Svix handles delivery, retries with exponential backoff, payload signing for authentication, and failure tracking with dashboards. Your API customers get a self-service portal to manage their own endpoints and replay failed messages. MIT license applies to the server and client SDKs; a managed Svix Cloud service is also available.
Key Features
- Automatic retry logic with exponential backoff for failed webhook deliveries
- Payload signing and verification to authenticate events between sender and receiver
- Per-customer developer portal for self-service endpoint management and message replay
- Event type schema management for documenting and versioning webhook payloads
- SDKs for Python, JavaScript, Go, Ruby, Java, and other popular languages
Who It's For
Svix is best for product and platform teams building APIs that need to notify customers of events via webhooks, who want complete webhook infrastructure and a customer-facing portal without building the delivery machinery from scratch.
Compared to Building Webhooks In-House
Unlike building webhook delivery yourself with a job queue and retry logic, Svix provides a complete webhooks platform including delivery management, signing, failure dashboards, and a customer portal out of the box. Building this infrastructure reliably typically takes weeks; Svix reduces it to an SDK integration.
