Webhooks Reinvented: Real-Time Event Streaming for the Modern Stack

Most email providers offer basic webhooks that are slow, unreliable, and hard to manage. This landing page introduces Cresca.xyz's 'Event Stream'—a high-performance, real-time event system for developers. We discuss our 'Exactly-Once' delivery guarantee, ensuring you never miss an open or bounce event.

We cover our 'Batching and Retries'—how we protect your servers from traffic spikes and automatically retry failed delivery attempts. For teams using serverless functions (AWS Lambda, Vercel), we show how to consume our event stream with zero-latency. We discuss the importance of 'Webhook Security'—how to use signature verification to ensure requests are coming from Cresca.

We also cover 'Custom Events'—how you can send any data back to Cresca via our API to trigger advanced automations. By centralizing your user engagement data in Cresca.xyz, you gain a 360-degree view of your customer journey. This guide is for the developers who want to build a truly event-driven app.

Cresca.xyz provides the data and the reliability you need to build the next generation of software.