README

Autlantic Billing — PHP

USDC payments on Base
Official server client for the hosted Autlantic Billing API.

Why this SDK

Same Billing API as Node — create subscriptions, one-time payments, and shareable payment links; verify webhooks. Non-custodial USDC on Base settles to your merchant payoutAddressEvm. API keys and webhook secrets stay on the server.

Install

composer require autlantic/billing

Packagist-friendly mirror: Autlantic/billing-php. Until Packagist indexes:

composer config repositories.autlantic vcs https://github.com/Autlantic/billing-php.git
composer require autlantic/billing:^0.1

For local development from this monorepo, path-require sdks/php. Requires PHP 8.1+, ext-curl, ext-json, ext-hash.

Quick start

use Autlantic\Billing\AutlanticBilling;

$billing = AutlanticBilling::fromEnv(); // AUTLANTIC_BILLING_API_KEY

$link = $billing->createPaymentLink([
  'amountUsdc' => 42,
  'merchantRefPrefix' => 'invoice',
  'successUrl' => 'myapp://billing/success',
  'cancelUrl' => 'myapp://billing/cancel',
]);
// Share $link['url'] or open it with a mobile Checkout SDK

Webhooks

Verify x-autlantic-signature with your portal endpoint secret:

use Autlantic\Billing\Webhook;

$ok = Webhook::verify($secret, $rawBody, $_SERVER['HTTP_X_AUTLANTIC_SIGNATURE'] ?? null);
$event = Webhook::parseEvent($rawBody);
// Unlock on invoice.paid / payment.paid / subscription.activated

Environment

Env var	Purpose
`AUTLANTIC_BILLING_API_KEY`	`abk_test_…` or `abk_live_…` (required)
`AUTLANTIC_BILLING_API_URL`	Default `https://billing.autlantic.com`
`AUTLANTIC_BILLING_MERCHANT_ID`	Optional merchant id

Hosted mode only. Pins Autlantic-Version: 2026-01-01.

Documentation


PHP SDK	API reference
Languages	All SDK surfaces
Mobile apps	Checkout presenters
Webhooks	Signature & events
Terms · Privacy · Security	Legal

Develop

composer install
composer test

License

MIT · Operated by Autlantic Limited (UK company no. 17422039).

Part of Autlantic Payments SDK.

autlantic / billing

Package info

Security

Statistics