Modern Event-Driven
Webhook System
Production-ready webhook delivery with guaranteed delivery, intelligent retries, and complete observability. Enterprise-grade infrastructure out of the box.
Built with
Enterprise-Grade Webhook Infrastructure
Everything you need to build reliable event-driven systems at scale
Guaranteed Delivery
Persistent storage ensures no webhook is ever lost. Events are stored in PostgreSQL with full transactional guarantees.
Intelligent Retries
Exponential backoff with jitter, configurable retry policies, and automatic failure handling for robust delivery.
Multi-Tenancy
Built-in organization and project isolation. Perfect for SaaS platforms with multiple customers.
High Performance gRPC
Native gRPC API for maximum throughput. Efficient binary protocol for high-volume webhook processing.
Complete Observability
OpenTelemetry integration, structured logging, and Prometheus metrics for full visibility into your webhook pipeline.
Secure by Design
HMAC signature verification, TLS encryption, and secure secret management for enterprise security requirements.
Simple Integration, Powerful Results
Get started in minutes with our intuitive API
Register Event Type
Define the events your system will emit
curl -X POST /api/events \
-d '{"name": "order.created"}' Create Subscription
Configure where webhooks should be delivered
curl -X POST /api/subscriptions \
-d '{"url": "https://...",
"events": ["order.*"]}' Trigger Events
Emit events from your application
curl -X POST /api/trigger \
-d '{"event": "order.created",
"payload": {...}}' Automatic Delivery
Sparrow handles delivery, retries, and monitoring
POST https://your-endpoint.com
X-Webhook-Signature: sha256=...
Content-Type: application/json Built for Scale & Reliability
A modern, layered architecture designed for high-throughput webhook delivery
API Layer
High-performance gRPC server with REST gateway for maximum flexibility and throughput.
Service Layer
Core business logic handling event routing, subscription matching, and delivery orchestration.
Queue System
Reliable message queuing with worker pools for scalable, concurrent webhook processing.
Storage Layer
PostgreSQL-backed persistence with full ACID guarantees for events, subscriptions, and delivery logs.
Ready to Build Reliable Webhooks?
Join the developers using Sparrow to power their event-driven architectures. Open source and free to use.