Interactive XPayr checkout widget example with secure server-side session creation and popup, redirect, and embedded checkout modes.

Production-oriented examples for XPayr payment sessions, hosted checkout, webhooks, and testnet-first merchant integrations.

XPAYR integration examples for Arc Testnet USDC checkout, transaction memos, App Kit workflows, and payment reconciliation.

Official PHP SDK for XPayr payment sessions, merchant operations, webhook verification, and server-side crypto checkout integrations.

Production-oriented XPayr Merchant API reference covering authentication, payment sessions, webhook delivery, and balance reporting.

Secure webhook verification examples for XPayr, including raw-body HMAC validation, idempotency, retries, and durable processing patterns.

Official Postman collection and environments for exploring the XPayr Merchant API and testnet payment lifecycle.

XPayr crypto payment gateway integration for Shopware 6, with hosted checkout and order payment-state synchronization.

XPayr crypto payment gateway integration for Zen Cart, with hosted checkout and merchant-side payment status handling.

Reference flow for policy-controlled agent decisions, agent-wallet execution, Arc Testnet USDC settlement, and XPAYR reconciliation.

Official XPayr developer documentation for payment sessions, webhooks, testnet checkout, and agent-commerce integrations.

XPayr crypto payment gateway integration for PrestaShop, with hosted checkout and merchant order-status handling.

Official Node.js SDK for creating XPayr payment sessions, verifying webhooks, and integrating direct-to-wallet crypto checkout.

XPayr crypto payment gateway integration for Magento 2, connecting checkout orders to secure payment sessions and status updates.

Canonical payment-evidence envelopes, deterministic hashing, and Merkle inclusion proofs for independently verifiable XPayr receipts.

Runnable server-side example for creating USDT checkout sessions with XPayr while keeping merchant API keys out of the browser.

XPayr crypto payment gateway integration for OpenCart, connecting store orders to secure hosted checkout and payment updates.

XPayr crypto payment gateway plugin for WooCommerce, with hosted checkout and merchant-side payment status handling.

Reference Laravel integration for creating XPayr checkout sessions, persisting payment state, and verifying webhook events safely.

Read-only Arc Testnet reconciliation reference for XPAYR payment events, cursor checkpoints, deduplication, and RPC health monitoring.