How much does a call cost?

$0.05 USDC on Base, paid with x402 before the operation runs.

POST JSON to /api/v1/brand-protection/suspected-counterfeit-listing-detect. An unpaid request returns 402. Pay the exact USDC amount on Base, then retry with payment-signature and Idempotency-Key.

Detect listing signals against a reference API

Compare a listing with one linked reference product and report brand, price, and stated-word differences. A signal is not a finding that the listing is counterfeit.

The Detect listing signals against a reference operation is part of the Brand Protection API on BRAINIAC.software. Compare a listing with one linked reference product and report brand, price, and stated-word differences. A signal is not a finding that the listing is counterfeit. It is exposed as POST /api/v1/brand-protection/suspected-counterfeit-listing-detect and priced at $0.05 USDC on Base. Payment uses the x402 exact scheme: an unpaid call returns HTTP 402 with payment requirements; after paying the exact USDC amount, retry the same request with a payment-signature header and Idempotency-Key. No account and no API key are required. Data sources for this product: Listings and images supplied in the request. One public page when the caller provides its URL. Limitations: Records come from the request or from one public page named in the request. Login pages and CAPTCHAs are not bypassed. A visual match is not proof of counterfeiting. A brand name in a listing is not a trademark determination. No seller account is accessed and no listing is removed. Outputs are compliance prechecks, drafts, or data lookups for human review. They are not official determinations, legal advice, identity confirmation, or certified filings. Related operations in this group include Match a listing to a supplied brand, Compare product images, Extract seller evidence, Audit brand-name usage. Open the group documentation for the full request schema, field notes, and response examples before integrating.

POST$0.05 USDC

/api/v1/brand-protection/suspected-counterfeit-listing-detect

Example request

curl -i -X POST "https://www.brainiac.software/api/v1/brand-protection/suspected-counterfeit-listing-detect" \
  -H 'content-type: application/json' \
  -H 'Idempotency-Key: <fresh-64-character-random-hex-key>' \
  --data-binary @- <<'JSON'
{
  "products": [
    {
      "id": "P-1",
      "brand": "Example",
      "title": "Example kettle",
      "sku": "SKU-1",
      "price": 80,
      "currency": "USD"
    }
  ],
  "listings": [
    {
      "id": "L-1",
      "productId": "P-1",
      "marketplace": "Example Market",
      "seller": "Shop B",
      "title": "replica kettle",
      "price": 20,
      "currency": "USD",
      "brand": "Other",
      "sku": "SKU-9"
    }
  ],
  "rules": [
    {
      "name": "price",
      "value": "0.5"
    }
  ]
}
JSON

An unpaid probe returns HTTP 402 with x402 payment requirements. After paying the exact USDC amount on Base, retry the identical request with a payment-signature header.

FAQ

Do I need an API key? No. Pay the listed USDC amount with x402.
What network? Base (eip155:8453), USDC.
Is this an official determination? No. Results are for human review against the cited sources.

Match a listing to a supplied brand — $0.04 USDC
Compare product images — $0.05 USDC
Extract seller evidence — $0.04 USDC
Audit brand-name usage — $0.04 USDC

Detect listing signals against a reference API

Example request

FAQ

Related operations

Related APIs