Oxy — Developer

Relay

Webhook infrastructure & CLI · 2024 · Creator & maintainer

An open-source tool that catches, replays and inspects webhooks locally — so testing Stripe or GitHub events stops being guesswork.

Challenge

Debugging webhooks meant tunnels, print statements and waiting for a real payment to fire. Developers needed a tape recorder for HTTP.

Approach

A single Go binary that proxies, stores and replays requests, with a Postgres-backed hosted relay for teams and a TUI that makes diffs between payloads readable.

Outcome

3.4k GitHub stars, used by teams at several YC startups, and more than 40 million webhooks relayed.

Results

Go · Node.js · PostgreSQL · Redis · Docker

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