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Rye Checkout Intent Creator (x402)
Rye Checkout Intent Creator (x402) is a paid API for AI agents from x402.rye.com, paid per call via x402, $0.02/call, status down (last checked 2026-10-13).
Initiates a wallet-native checkout intent for purchasing products from 15k+ merchants, returning an intent ID after satisfying a $0.02 USDC x402 payment challenge.
Price / call$0.02
Success—
StatusDown
How this service works
Create a checkout intent. The first call returns 402 with an x402 payment challenge. After signing the authorization, retry with the PAYMENT-SIGNATURE header to complete the request. This is step 1 of 3 for purchasing a product: (1) POST /v1/checkout-intents with productUrl → returns intent id ($0.02 USDC). (2) GET /v1/checkout-intents?id={id} (free, wallet-scoped — requires X-Wallet-Address matching the buyer wallet) → poll until state="awaiting_confirmation" and review priced offer. (3) POST /v1/checkout-intents/confirm → finalize purchase (dynamic cost = order total + $0.03 API fee + ~1.5% Stripe surcharge). Wallet-native checkout for 15k+ merchants — Shopify, Amazon, Best Buy, and others.
Output
Returns a JSON object with a checkout intent ID (e.g. 'ci_abc123') and an initial state string (e.g. 'retrieving_offer'). This ID is used in subsequent polling (GET /v1/checkout-intents?id={id}) and confirmation (POST /v1/checkout-intents/confirm) steps to complete the purchase.
Example use cases
Example prompt
“I want to buy this product — https://www.amazon.com/dp/B08N5WRWNW — using my crypto wallet. Can you start a checkout intent for me using my wallet address 0xAbc123...?”
Technical details
Endpoint
POSThttps://x402.rye.com/v1/checkout-intents?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to purchase a physical or digital product from a major retailer (Shopify, Amazon, Best Buy, etc.) using a crypto wallet and USDC, specifically via the x402 micropayment protocol. It is the entry point for Rye's 3-step wallet-native checkout flow and is ideal for AI agents automating purchases on behalf of users with Web3 wallets.
Side effects
- 402 Payment Required on first call — expected; must sign the x402 authorization and retry with PAYMENT-SIGNATURE header
- Invalid or missing product URL — returns 400 or error state
- Invalid wallet address or missing wallet header — authentication failure
- x402 payment signature invalid or expired — retry with fresh signature
- Merchant not supported in Rye network — offer retrieval may fail downstream
Input
{
"buyer": {
"city": "San Francisco",
"email": "zero-qa@agentmail.to",
"phone": "+15555555555",
"country": "US",
"address1": "123 Main St",
"lastName": "QA",
"province": "CA",
"firstName": "Zero",
"postalCode": "94105"
},
"quantity": 1,
"productUrl": "https://www.amazon.com/dp/B08N5WRWNW",
"paymentMethod": {
"type": "x402",
"network": "base"
},
"walletAddress": "0x742d35Cc6634C0532925a3b844Bc9e7595f42bE",
"notificationEmail": "zero-qa@agentmail.to"
}Output
{
"id": "ci_03335615c269416d9b113ce27a57d2ce",
"buyer": {
"city": "San Francisco",
"email": "zero-qa@agentmail.to",
"phone": "+15555555555",
"country": "US",
"address1": "123 Main St",
"lastName": "QA",
"province": "CA",
"firstName": "Zero",
"postalCode": "94105"
},
"state": "retrieving_offer",
"quantity": 1,
"createdAt": "2026-05-29T23:01:55.994Z",
"productUrl": "https://www.amazon.com/dp/B08N5WRWNW"
}Schema · Response
| Field | Type | Description |
|---|---|---|
| idrequired | string | |
| staterequired | string |
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