resources/BuyWith402/POST /products/:id/purchase
POSTorigin reachablediscovery only

BuyWith402 /products/:id/purchase APIPOST /products/:id/purchase · x402 API by BuyWith402

BuyWith402 (buywith402.com): buy any product from the catalog with one x402 USDC payment and get an order id with queued fulfillment. Prices are all-inclusive (US shipping and tax included). Browse products free at GET /products (?query=<text> to search); check status at GET /orders/{order_id}. Missing merchandise? POST /merchants with any store URL ($5.00 x402) onboards its catalog within minutes.

https://www.buywith402.com/products/:id/purchase

What does this x402 API do?

BuyWith402 /products/:id/purchase API. This is an x402-gated POST API resource from BuyWith402. TOLL·402 did not invoke this route automatically because doing so was not considered safe. No normalized USD price is recorded; the listing names Base. No settled paid call has been verified.

Published price
No normalized USD price is recorded
Networks
Base
Latest evidence
TOLL·402 did not invoke this route automatically because doing so was not considered safe
Resource ID
bd3c3ed6148191942b309b90
USE THIS RESOURCE

Start with a quote-only recipe. Payment signing stays in your project.

CODE
AI CODING TOOLS
quote-check.ts
const response = await fetch("https://www.buywith402.com/products/:id/purchase", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
  "type": "http",
  "method": "POST",
  "bodyType": "json",
  "bodyFieldNames": [
    "quantity",
    "shipping"
  ],
  "pathParamNames": [
    "id"
  ],
  "queryParamNames": []
}),
});

console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));

// A valid 402 is a quote, not a completed paid call.

Review the provider input schema before running this non-read-only method. No payment code is included.

STATUS HISTORY

  1. Observed in cdp-bazaar

    The registry record was observed and retained with provenance.

  2. Exact route checked

    not safely testable · potentially-mutating-method:POST

  3. Origin reachable

    HEAD https://www.buywith402.com/ returned 200.

What evidence supports this listing?

cdp-bazaarobserved 2026-08-05 · open source record ↗
origin checkHEAD https://www.buywith402.com/ → 200 on 2026-08-05
route quotenot invoked automatically · potentially-mutating-method:POST · 2026-08-05

Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →

Which networks and payment options does it accept?

The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.

Baseexact19860000 atomic · 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
BuyWith402 POST /products/:id/purchase · bd3c3e x402 API · TOLL·402