Company Overview
Webhook (also known as HTTP callback or web callback) is a lightweight event notification mechanism based on the HTTP protocol. It is an infrastructure-level technology for automation workflows and API integration. Unlike traditional polling, Webhook uses server push mode—notifying immediately when events occur.
Almost all major SaaS platforms—including payment gateways (Stripe, PayPal), CRM systems (Salesforce, HubSpot), email services (SendGrid, Mailgun), e-commerce platforms (Shopify, WooCommerce), project management tools, and CI/CD platforms—offer Webhook functionality.
Technical Highlights
- Real-time Push: Instant HTTP POST notification on events
- Zero Polling: Eliminates periodic client query overhead
- Universal Standard: HTTP-based, seamless with any REST API
- Lightweight: No SDK required, any HTTP-capable service can integrate
- Extensible: Signature verification, retry mechanism, custom headers