webhook.co

What webhook.co is

webhook.co is an inbound webhook gateway for receiving events from other services, verifying them, and managing delivery. It supplies a permanent URL for capturing events, inspecting them, and replaying them to a local machine or another destination. Events are processed first-in-first-out per endpoint. Failed deliveries retry with backoff, while unsuccessful ones go to a dead-letter queue for inspection and replay. Signature verification supports schemes for 144 providers, follows the Standard Webhooks specification, and reports named failure reasons. Built-in provider schemes include Stripe, GitHub, Shopify, Slack, Twilio, HubSpot, Linear, and OpenAI. Users can access events through a CLI, API, dashboard, or MCP. Captured requests and deliveries count as events; retries are billed once per delivery, and deduplicated duplicates are not billable. The free plan provides 5,000 lifetime events and pauses capture when that allowance is used. The maker says captures are private by default, but the service has no SOC 2 or HIPAA certification and does not offer EU data residency. Its core engine, CLI, MCP server, and signing library are open source, and the core can be self-hosted.