Bitcoin Lightning
API Integration
A production-ready REST API for engineering teams who need to match the checkout experience with full backend control over their Lightning payment flow.
A REST API built for production Lightning payments
ElenPAY is a Lightning PSP that lets your backend create automated Lightning invoices, keep them live and connected to your checkout, receive real-time payment confirmations via webhook, initiate payouts and withdrawals. Your team retains full control of the payment experience.
Built for high-frequency
payment environments
For platforms that require complete control over the payment experience and need a Lightning integration that can scale to high-frequency transaction volumes from day one for small- to mid-tier Bitcoin payments.
Fintech & Crypto Apps
ElenPAY's API enables fintech platforms and crypto applications to embed Lightning pay-ins and payouts directly into their product, reducing settlement times from days to under a second without rebuilding payment infrastructure from scratch.
Payment Providers
PSPs, payment orchestrators, and payment acquirers can integrate Lightning as a native payment rail via ElenPAY's API alongside their existing card and bank transfer methods, offering a more competitive set of payment solutions and broader user reach opportunities.
iGaming Platforms
ElenPAY supports instant player deposits and withdrawals with sub-1-second payment confirmation, making it the payment rail of choice for online casinos, sportsbooks, sweepstakes, and prediction platforms operating across multiple markets looking to boost user retention while ensuring efficiency.
Peer-to-Peer Payments
Wallets and P2P platforms rely on ElenPAY's Lightning API to process high volumes of small-value transfers between users in real time, with network fees below $0.01 per transaction regardless of payment frequency.
Gaming & Digital Collectibles
In-game purchases, microtransactions, and digital asset transfers that were previously uneconomical on-chain become viable through Lightning. ElenPAY's API handles the payment layer so developers focus on product, not infrastructure.
E-commerce & Marketplaces
Online stores and multi-vendor marketplaces use ElenPAY's API to accept Lightning payments at checkout, ensuring payment finality and a strong customer payment experience. They also seamlessly distribute small- to mid-tier payouts to sellers with millisecond confirmation, strengthening business relationships.
How Lightning
API Integration Works
From credential request to live Lightning payments via API in only four steps.
ElenPAY will provide a sandbox API key to test invoice creation, payment flows, and webhook delivery in an isolated Lightning testnet environment before production.
- Sandbox mirrors production behaviour exactly
- No real funds settled during testing
- Dedicated support throughout onboarding
Your backend sends a POST request to the invoices endpoint with amount, description, and your webhook URL. ElenPAY returns a payment URL and QR code in milliseconds.
- Single API call generates invoice + QR code
- Configurable expiry per invoice
- Full frontend control over the checkout UI
The customer scans or pastes the invoice into any Lightning wallet, and the payment finalizes on the Lightning Network in under 1 second. ElenPAY then fires an HTTPS webhook to your backend with the confirmed payment status.
- HTTPS POST to your endpoint on every payment event
- Payload includes invoice ID, amount, and settled timestamp
- No polling required
Your back office is updated the moment the webhook is acknowledged, receiving instant payment confirmation and making funds available for settlement or payout immediately.
- No clearing windows or float
- Trigger fulfilment, balance updates, or payouts from the same event
- Supports mass payouts to multiple recipients simultaneously
ElenPAY's REST API is built for fast go-live. A sandbox environment, clear webhook structure, and dedicated integration support mean most teams are processing real Lightning payments within a single sprint.
Why is ElenPAY's
Lightning API ideal
for your business
Millisecond Confirmation
Lightning invoices created via the API finalize payments in under one second, and settle funds instantly in your back office the moment the customer receives a payment confirmation.
Complete Flow Control
Companies own the entire payment UX. The API handles communication with ElenPAY's Lightning infrastructure, while your frontend, invoice logic, and payout rules remain under your full control.
Webhook-Driven Architecture
Real-time HTTPS webhooks on every payment event. Build event-driven fulfillment flows, balance updates, and payout triggers directly from confirmed payment data.
Processing 100K+ TPS
ElenPAY's Lightning infrastructure can handle over 100,000 transactions per second. The same API endpoint serves startups and high-frequency operators, allowing them to scale without transaction size limits.
FAQs
Answers to the most common questions from our clients and partners. You can also learn more about Lightning payments by visiting our Lightning Knowledge Hub or reaching out to our team.
ElenPAY's Lightning API is a production-ready REST API that enables businesses to programmatically accept and send Bitcoin Lightning payments.
ElenPAY's REST API is designed to be integrated in hours, not weeks.
Yes. The API supports pay-ins (receiving Lightning payments from customers), payouts (sending Lightning payments to users, affiliates, or partners), and mass payouts.
The payload includes the payment identifier, amount in satoshis, settlement timestamp, and status field.
Yes. ElenPAY provides a full sandbox environment that mirrors production behaviour — invoice creation, payment simulation, and webhook delivery — without settling real funds.
Lightning payments processed through ElenPAY's API settle in under one second. Network fees are below $0.01 per transaction.
Yes. ElenPAY's Lightning infrastructure supports over 100,000 transactions per second.
Start building with ElenPAY's Lightning API
Tell us about your infrastructure and use case. Our team will walk you through sandbox access and support your Lightning integration in just a few days.