POST/api/license/verify
/api/license/verify
Activate, validate, or deactivate Lemon Squeezy license keys by app_id.
Shared SaaS backend
Licensing, checkout, contact, and email API.
A dedicated backend for product apps that need Lemon Squeezy licensing, Resend-backed contact forms, webhook ingestion, and abuse-resistant rate limits without sharing product-specific secrets.
Boundary
Secrets stay here.
Product websites call this API with an `appId`. Lemon Squeezy, Resend, webhook, and Licensing Manager Supabase secrets stay inside this project.
API surface
One backend, app-scoped records.
Every reusable workflow is keyed by `app_id`, product slug, Lemon Squeezy product IDs, variant IDs, and license instance metadata.
GET/api/lemon/checkout
/api/lemon/checkout
Create product-scoped Lemon Squeezy checkout links with app custom data.
POST/api/lemon/webhook
/api/lemon/webhook
Ingest Lemon Squeezy events and write app-scoped license records.
GET/POST/api/contact
/api/contact
Issue captcha challenges, store contact messages, rate limit abuse, and notify via Resend.
Configured apps
Products served by this backend.
Video Download Manager
video-download-manager
Prompt Generator
prompt-generator-extension
CartProof
cartproof