Ax402 for WooCommerce is the agentic commerce extension for WooCommerce. It is not only a payment method.

Buying agents can discover and search your catalog, create a cart, check out, and pay — using Universal Commerce Protocol (UCP) and x402. Human shoppers get the same x402 wallet payment on the store pay page. You keep WooCommerce for products, customers, and orders.

The x402 hop on the UCP surface follows AxLabs/ucp-x402-binding.

Your wallets. No take rate on sales.

You set the payout wallets (one EVM address for all EVM networks, plus a Hedera account if you enable Hedera tokens). Settlements go to those wallets. There is no payment intermediary that holds the funds.

Ax402 facilitates settlement: payment endpoints, the token list, and confirmation. Ax402 does not take a percentage of products sold.

Catalog prices stay in USD. Shoppers and agents pay in the settlement tokens you enable from your Ax402 platform config (for example USDC). Ax402 covers network fees for those payments.

Works with classic checkout, Cart / Checkout Blocks, and HPOS.

You need an Ax402 merchant account and API key.

For merchants

WooCommerce payment method ax402 with a readiness checklist
Settlement tokens synced from Ax402 (stablecoins 1:1 with the USD total; other tokens use Ax402 FX)
Human pay page: wallet connect, network switch, balance checks
Orders stay in WooCommerce Orders
Optional “Powered by Ax402” on the pay page (off by default)

For buying agents

UCP discovery at /.well-known/ucp and shopping at /wp-json/ucp/v1 (catalog, cart, checkout, order, MCP)
x402 payment required at checkout complete — agents pay resource.url, then complete again
Legacy agent REST at /wp-json/ax402/v1 (products, create order, status)

UCP is on by default. Turn it off in Ax402 settings if you do not want agent discovery. That does not change the human pay page.

External services

This plugin does not include analytics, advertising pixels, or other tracking. It contacts the services below only to run Ax402 / x402 payments (and Hedera wallet connect when you enable it). Saving an Ax402 API key in WooCommerce settings is consent to use Ax402. WalletConnect, Hedera Mirror Node, and public RPC calls run in the shopper’s browser when they choose to pay.

Ax402

Ax402 (operated by AxLabs) creates payment endpoints, syncs settlement tokens, confirms settlements, and serves the gateway the shopper or agent pays. The browser and WordPress may call your assigned gateway host (*.ax402.io) under the same operator.

When: configuring the gateway, placing an Ax402 order, loading the pay page, refreshing tokens, verifying payment, and (server-side) proxying or reconciling a payment when needed
Data sent: API key, pay-to wallet, order totals / amounts, order keys, selected settlement token, store origin for CORS, settlement references. No card data or wallet private keys
Service · Terms · Privacy · Disclaimer

Chain metadata (GitHub / ethereum-lists)

When a settlement token does not already include a chain name, public RPC, or explorer URL, the plugin may fetch one public Ethereum chain JSON file from the GitHub Contents API (eip155-{id}.json), cached 24 hours per chain. Dataset: ethereum-lists/chains (MIT).

When: resolving a display name, public RPC, or explorer for an EVM network that lacks those fields on the Ax402 token
Data sent: HTTP GET with Accept and GitHub API version headers. The path includes the numeric chain id. No personal data, API keys, or order data
Service · Terms · Privacy

WalletConnect / Reown

On the pay page, when a shopper selects Hedera settlement and you have set a WalletConnect project ID, the browser uses WalletConnect / Reown to connect a Hedera wallet (for example HashPack), including relay traffic such as https://rpc.walletconnect.com/.

When: only after the shopper starts Hedera wallet connect on the pay page
Data sent: project ID, dapp metadata (store name and URL), session data, and the wallet account id used for signing. Private keys stay in the wallet
Reown terms · WalletConnect terms
Reown privacy · WalletConnect privacy
Docs

Hedera Mirror Node

The shopper’s browser may query public Hedera Mirror Node REST (mainnet-public.mirrornode.hedera.com / testnet.mirrornode.hedera.com) for token balances and network readiness.

When: when a shopper pays with a Hedera settlement token
Data sent: Hedera account id and token id in public REST paths. No private keys
Terms · Privacy

Public EVM RPC endpoints

The shopper’s browser may call public EVM JSON-RPC URLs from token metadata or ethereum-lists chain files (via the GitHub Contents API) for balance checks, chain switching, and payment signing. Exact RPC URLs vary by chain. Wallet extensions (for example MetaMask) run locally; private keys never leave the wallet.

UCP discovery JSON may include protocol spec URLs (ucp.dev, x402 UCP payment handler schema, ucp-x402-binding). Those are documentation identifiers, not APIs this plugin calls.

Development

Active development, pull requests, and issue tracking are on GitHub, not WordPress.org SVN:

https://github.com/AxLabs/ax402-woocommerce-extension

Related AxLabs repositories:

AxLabs/ax402-woocommerce-extension — this plugin
AxLabs/ucp-x402-binding — UCP × x402 payment binding
GitHub Releases — full changelog per version

WordPress.org SVN is a publish snapshot of tagged releases for the Plugin Directory.

Minified frontend assets live in build/. Readable source, build tooling, and third-party license notes are in the GitHub repo. See also assets/THIRD_PARTY_LICENSES.md in the plugin package.

npm –prefix plugin ci
npm –prefix plugin run build

Optional lean EVM-only bundle (stubs Hedera): AX402_EVM_ONLY=1 npm –prefix plugin run build

The default build includes Hedera WalletConnect support (~2MB pay-page bundle).