AuthLN
Developers & Startups

Built for Developers

Integrate Pay Factor Authentication in minutes with our developer-friendly SDKs, comprehensive APIs, and detailed documentation.

Get API KeysView Demo

SDKs for Every Platform

JSJavaScript/TypeScript
PYPython
GOGo
RSRust
⚛React
NNext.js

Get Started in Minutes

1

Get API Keys

Sign up and get your API credentials

2

Install SDK

npm install @authln/sdk

3

Initialize

Configure with your API key

4

Authenticate

Start protecting your users

Clean, Simple APIs

RESTful APIs

Clean, well-documented REST APIs with OpenAPI specifications. Integrate in minutes with any language or framework.

curl -X POST https://api.authln.com/v1/auth \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{"user_id": "user@example.com"}'
Webhooks

Real-time event notifications for authentication events, payment confirmations, and security alerts.

{
  "event": "auth.success",
  "user_id": "user@example.com",
  "device_id": "d-abc123",
  "timestamp": "2024-01-15T10:30:00Z"
}
SDK Integration

Native SDKs for popular platforms with type-safe interfaces and comprehensive error handling.

import { AuthLN } from '@authln/sdk';

const authln = new AuthLN({
  apiKey: process.env.AUTHLN_API_KEY
});

const result = await authln.authenticate({
  userId: 'user@example.com'
});

Startup-Friendly Pricing

Free Tier
$0

Perfect for testing

  • 1,000 authentications/month
  • Sandbox environment
  • Community support
Popular
Growth
$99/mo

For growing startups

  • 50,000 authentications/month
  • Production environment
  • Email support
  • Webhooks
Scale
Custom

For high-volume apps

  • Unlimited authentications
  • Dedicated infrastructure
  • Priority support
  • Custom SLA

Start Building Today

Get your API keys and start integrating Pay Factor Authentication in minutes. Free tier available for testing and development.

Get API KeysView Documentation