Lightning Payment Gateway

Build Lightning payments into any product

A merchant API plus creator monetization tools — with idempotency, signed webhooks, hosted checkout, and Nostr-native identity built in.

Get startedAPI Reference

Quickstart

Accept your first Lightning payment in under 5 minutes.

Authentication

API keys, scopes, test vs live mode, and security best practices.

API Reference

Every endpoint with live examples and a built-in Try-it console.

TypeScript SDK

npm i @zapapi/sdk — typed invoices, refunds, payment links, webhooks.

Explore the platform

Webhooks

Signed events with retries, replay and a delivery log.

Core Concepts

Errors, idempotency, pagination, rate limits, versioning.

Payment Gateway

Architecture and roadmap for the Lightning payment gateway.

Changelog

New features, breaking changes, deprecations and fixes.