Send a webhook payload to a URL with custom headers, body, and content-type. Supports retry with exponential backoff.

Validate a webhook signature. Supports HMAC-SHA256 and HMAC-SHA1 with built-in patterns for Stripe, GitHub, and Slack.

Generate a realistic webhook payload for common services. Supports Stripe (payment_intent.succeeded), GitHub (push, pull_request), and Slack (message).

Analyze a webhook request: parse headers, validate signature, decode body, check content-type, verify timestamp freshness, and detect the provider.

Calculate a retry schedule with exponential backoff and optional jitter. Shows the delay, cumulative time, and scheduled timestamp for each retry attempt.