intents

Review Risk Intent

Product record plus customer reviews for one ASIN, so a recommending agent can weigh specs against complaint patterns before it commits.

GET/api/public/v1/review-risk

price: $0.010
atomic: 10000
free tier: 3 calls / agent
chain: base mainnet
asset: USDC
scheme: exact

agent brief

Give an ASIN, get the Amazon product record and its reviews together.

engine: · results key: results · settlement: USDC / base / exact

use this when you need to

-Quality gate before recommending a product
-Defect and complaint clustering
-Return-risk estimation

query parameters

name	type	required	description
network	base \| base-sepolia	no · default "base"	Payment network. base-sepolia returns mock data for testing.
asin	string	yes	Amazon ASIN
amazon_domain	string	no · default "amazon.com"	Amazon marketplace domain
sort_by	string	no	Review sort: recent \| helpful

call it — curl

bash

# Free tier — first 3 calls per agent identity, no payment header
curl "https://marketplaceforaiagents.com/api/public/v1/review-risk?asin=B0CHX1W1XY"

# Sandbox — signed testnet USDC, mock response, no real spend
curl "https://marketplaceforaiagents.com/api/public/v1/review-risk?asin=B0CHX1W1XY&network=base-sepolia" \
  -H "X-PAYMENT: <base64 signed base-sepolia USDC authorization>"

# Production — signed x402 payment header, real data
curl "https://marketplaceforaiagents.com/api/public/v1/review-risk?asin=B0CHX1W1XY" \
  -H "X-PAYMENT: <base64 signed USDC authorization>"

call it — typescript + x402-fetch

typescript

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

const account = privateKeyToAccount(process.env.AGENT_PRIVATE_KEY as `0x${string}`);
const fetchWithPayment = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPayment(
  "https://marketplaceforaiagents.com/api/public/v1/review-risk?asin=B0CHX1W1XY"
);
const data = await res.json();
console.log(data.results);

response — 200 ok

application/json

{
  "intent": "review-risk",
  "chain": [
    "amazon-product",
    "amazon-reviews"
  ],
  "steps_run": 2,
  "results": {
    "amazon-product": {
      "note": "Normalized response of /api/public/v1/amazon-product"
    },
    "amazon-reviews": {
      "note": "Normalized response of /api/public/v1/amazon-reviews"
    }
  }
}

status codes

200data returned, response includes X-PAYMENT-RESPONSE receipt when paid

400missing or invalid required parameters

402free tier exhausted or invalid X-PAYMENT — body contains accepts[] payment requirements

404unknown endpoint slug

429upstream rate limit — retry with backoff

500upstream or settlement error