APIs · 2022

Relay API

Completed

Real-time messaging & notifications API for product teams.

Role: Founder / Engineer
Client: Self-initiated
Timeline: 2022
Stack: Node.js, PostgreSQL, Redis, WebSockets, Docker

View Code

terminal — relay api

$ curl -X POST https://api.relayapi.dev/v1/messages \

-H Authorization: Bearer rk_live_•••• \

-d {to: ops@acme.io, channel: email}

→ 201 Created · delivery queued

✓ delivered successfully

Live preview — api.relayapi.dev

A developer-facing API that gives product teams reliable in-app messaging, email and push notifications behind one endpoint. Rate-limited, versioned, and documented — the kind of API I wish existed when I built my first SaaS.

The Challenge

Teams waste weeks wiring three notification providers, handling retries, and chasing delivery guarantees. The API had to make that boring to use.

The Solution

One POST endpoint, provider-agnostic delivery pipelines, automatic retries with exponential backoff, and delivery webhooks. Ships as a single Docker container and a typed SDK for Node and TypeScript.