subs

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subsEmail signup API with Google Sheets

Collect email signups, store in Google Sheets, deploy anywhere in minutes

Get Started
Deploy to Cloudflare
View on GitHub

Google Sheets Storage

Store signups in Google Sheets with automatic tab creation, headers, and duplicate prevention

Invisible Bot Protection

Cloudflare Turnstile blocks spam without CAPTCHAs. Privacy-first, no user tracking

Embed Anywhere

JS SDK, HTML form, custom fetch, or iframe. React, Vue, and Svelte examples included

Type-Safe Validation

Zod schemas validate every request. TypeScript types inferred from schemas at compile time

Production Observability

Prometheus metrics, structured JSON logging with Pino, health checks, and stats endpoints

Deploy Anywhere

Cloudflare Workers, Docker, Fly.io, Render, or any VPS. Edge deployment with automatic scaling

Quick Start ​

bash
git clone https://github.com/briansunter/subs.git
cd subs && bun install
cp .env.example .env   # add Google Sheets credentials
bun run dev            # http://localhost:3000
bash
curl -X POST http://localhost:3000/api/signup \
  -H "Content-Type: application/json" \
  -d '{"email": "user@example.com", "sheetTab": "Sheet1"}'

Guides ​

Released under the MIT License.

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