x402 · Base Sepolia testnet · test USDC

Amazon intelligence for AI agents. Pay per call.

A complete Amazon dataset plus ready-made answers: prices, history, offers, search, best sellers, deal verdicts, FBA profit and opportunity scores, across 11 Amazon marketplaces. No API key, no account, no subscription. Your agent pays a few cents in USDC and gets JSON.

Ready-made answers · fixed price

`GET /api/product`	Amazon product snapshot	$0.01
`GET /api/deal-check`	Is this Amazon price actually a deal?	$0.02
`GET /api/fba-profit`	Amazon FBA profit calculator	$0.05
`GET /api/sell-score`	Should I sell this product? Opportunity score 0-100	$0.10

Full Amazon data · every parameter

Products (1–100 per call), full price & sales-rank history, live offers, stock, product search, Product Finder with 300+ filters, deals, best sellers, sellers and categories. Price follows the data cost of your query: $0.002 per data credit, minimum $0.005. The exact quote is in the 402 response, before you pay.

`GET /api/data/product`	Full Amazon product data, every parameter	from $0.005
`GET /api/data/search`	Search Amazon products by keyword	from $0.020
`GET/POST /api/data/finder`	Product Finder: filter the whole Amazon catalog	from $0.020
`GET/POST /api/data/deals`	Live Amazon price drops and deals	from $0.010
`GET /api/data/bestsellers`	Amazon best sellers list for a category	from $0.100
`GET /api/data/seller`	Amazon seller information and storefront	from $0.005
`GET /api/data/category`	Amazon category details	from $0.005
`GET /api/data/category-search`	Find Amazon category IDs by name	from $0.005
`GET /api/data/topsellers`	Most-rated Amazon sellers	from $0.100

How it works

01 · RequestCall any endpoint. You get HTTP 402 with the exact price for your query.

02 · PayYour x402 client signs a USDC payment and retries automatically.

03 · ReceiveJSON comes back. Invalid or failed queries are never charged.

Quick start (Node)

import { wrapFetchWithPayment } from "x402-fetch";
import { privateKeyToAccount } from "viem/accounts";

const pay = wrapFetchWithPayment(fetch, privateKeyToAccount(process.env.AGENT_KEY));
// A ready-made answer
const deal = await pay("https://asin402.com/api/deal-check?asin=0735211299");
console.log(await deal.json()); // { verdict: "buy_now", current_price: ..., avg_90d: ... }

// Full product data with any parameter
const p = await pay("https://asin402.com/api/data/product?asin=0735211299&buybox=1&rating=1&series=all");
console.log(await p.json());

For agents and crawlers

Machine-readable descriptions: /llms.txt · /.well-known/x402 · /openapi.json · Product Finder fields · Deal query fields