x402 Agent Checkout for WooCommerce

x402 Agent Checkout for WooCommerce

Let AI agents discover and buy your WooCommerce products directly using USDC on Base.

The first WooCommerce plugin built for the emerging Agentic Commerce ecosystem. AI shopping assistants, autonomous buyers, and software agents can discover your products through a machine-readable catalog and complete purchases over standard HTTP using the x402 protocol, with payments settled on-chain in USDC.

No customer accounts. No API keys for buyers. No traditional checkout flow. Simply a signed payment authorization that automatically creates a WooCommerce order within seconds.

Sell to AI Agents, Not Just Humans

AI-powered shopping agents are beginning to purchase products on behalf of users and businesses. Most online stores are designed only for human visitors.

x402 Agent Checkout for WooCommerce implements the emerging x402 protocol based on the standard HTTP 402 Payment Required response, allowing compatible AI agents to:

• Discover products using a machine-readable JSON catalog.
• Request checkout details including price, currency, network, and payment destination.
• Authorize payment using their own USDC wallet.
• Automatically create a standard WooCommerce order after successful settlement.

Settlement is handled through Coinbase Developer Platform (CDP). No blockchain node, private keys, or smart contract deployment is required.

Why x402 Instead of a Traditional Crypto Gateway?

This plugin is designed specifically for autonomous machine-to-machine commerce, not simply human crypto payments.

• No shopping cart or browser sessions required.
• No customer login or OAuth authentication.
• Machine-readable product discovery feed.
• HTTP API designed for AI agents.
• Idempotent requests prevent duplicate payments and duplicate orders.

Key Features

Machine-Readable Product Catalog

• JSON catalog endpoint for AI discovery.
• Product title, SKU, image, pricing, inventory status, and checkout information.
• Indicates whether shipping information is required.

Native x402 Payment Flow

• Complete 402 → Verify → Settle workflow.
• Compatible with Coinbase CDP Facilitator.
• Supports EIP-3009 transferWithAuthorization.
• No private keys stored on your WordPress website.

Billing & Shipping Validation

• Requires shipping information for physical products before payment.
• Digital products automatically bypass shipping requirements.

WooCommerce Tax & Shipping Calculation

• Optional real-time WooCommerce tax calculation.
• Uses configured WooCommerce Shipping Zones.
• Returns accurate pricing instead of estimated values.

Flexible Product Enablement

• Enable Agent Checkout globally or per product.
• New products can automatically become agent-enabled.
• No additional product configuration required.

Built for Reliability

• Idempotent payment replay protection.
• Prevents duplicate WooCommerce orders.
• Compatible with normal WooCommerce inventory management.
• Standard WooCommerce emails and order processing continue to work.
• Graceful handling of third-party plugin conflicts.

Complete Order Tracking

• Dedicated x402 Payment Details panel.
• Payer wallet address.
• Blockchain network.
• Transaction hash with explorer link.
• Authorization nonce.
• Quick order list indicator inside WooCommerce.

Testnet Ready

• Configured for Base Sepolia testnet by default.
• Switch to Base Mainnet when you’re ready for production.

Requirements

• WordPress 6.0 or higher
• WooCommerce 6.0 or higher
• PHP 7.4 or higher
• Coinbase Developer Platform (CDP) account
• USDC wallet address on the Base network

What This Plugin Does Not Do

• Does not add a traditional “Pay with Crypto” checkout button for human customers.
• Does not operate its own blockchain node.
• Does not store or manage private keys.
• Does not currently support multiple products in a single checkout request.

Perfect For

• AI Shopping Platforms
• Autonomous Purchasing Agents
• Developer APIs
• Machine-to-Machine Commerce
• Digital Product Stores
• SaaS Providers
• Early Adopters of Agentic Commerce

Prepare your WooCommerce store for the future of AI-powered commerce by enabling autonomous agents to discover, purchase, and pay using the open x402 protocol.