x402/ commerce agents
Plugin for Anthropic commerce-builder ↗
x402 plugin for Anthropic commerce-builder

Agents can shop.
Now they can pay.

One safe URL. A wallet for people. HTTP 402 for agents. Payment data never enters Claude.

See how it works Solana + EVM
Facilitator-neutral
Scroll to follow the payment
ACME Pantry Garlic Brioche Dinner Rolls $0.99 · testnet demo
402payment required
Claude Wallet SVM EVM Agent
One protocol between intent and settlement.
One URLFor people and software.
Zero secretsInside the model.
Solana + EVMEqual USDC rails.
Any facilitatorOne environment variable.
The safe handoff

Follow one purchase.

Commerce checkout Claude shops
✦ ClaudeBrioche rolls · $0.99
↗ Host handoffAdds one URL
◉ PersonWallet page
{ } AgentHTTP 402
SolanaUSDC · SVM
EVMUSDC · Base
✓ Paid orderFulfillment unlocked

The model handles intent—not money.

01 · SHOP

Claude stops at the cart.

It adds the garlic brioche rolls and calls checkout. No wallet. No payment fields.

02 · HANDOFF

The host adds one safe URL.

The URL appears after the model call. Claude never sees it.

03 · ONE URL

People see a wallet. Agents see 402.

Same checkout. Two native experiences.

04 · SETTLE

Payment unlocks the order.

USDC settles on Solana or EVM. The server verifies before fulfillment.

That is the unlock

The agent completes the purchase—without touching the money.

Anthropic keeps control of the shopping experience. x402 makes the final step programmable, verifiable, and open.

Try the real integration

Don't take our word for it.

This drives Anthropic's retail executor and creates a live testnet checkout. Nothing is charged automatically.

Bring it to your agent

Give your checkout a payment rail.

Add the facilitator-neutral pattern to any shopping agent scaffolded by Anthropic's commerce-builder.

/x402-checkout:add-x402-checkout
Implement x402 checkout →