Developers
Build on Lumenchain
Ship crypto-native billing with a typed SDK, OpenAPI schema, and sandbox bootstrap tokens.
SDK install
pnpm add @l2-layer/sdk
Typed client for pay-once, subscriptions, and webhook verification.
OpenAPI
/api/openapi
Schema mirrors the payments service with analytics and onboarding endpoints.
Docs
/docs/sdk
Examples for JWT helpers, WorkOS/Supabase auth, and CLI snippets.
Sandbox-ready
Use fixture subscriptions or the live API at https://api.lumenchain.io with sandbox JWTs. Customer portal tokens can be generated from the onboarding flow for targeted testing.
Sandbox tokens and fixture subscriptions for instant previews
JWT helpers for WorkOS/Supabase auth flows
CLI snippets for pay-once, subscriptions, webhook verification, and refresh jobs
Status links and incident playbooks for SRE teams
Sandbox login: `GET /ui/onboarding/register` (email link) or WorkOS/Supabase invite, plus customer portal token for reviewers
Deep links to try now
These use live API surfaces where available. Toggle fixtures with ?fixtures=1 for deterministic demos.