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StatePulse API - Barcode Product Lookup
x402
StatePulse API - Barcode Product Lookup is a paid API for AI agents from statepulse-api.hahavoid0.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).
Looks up product information (brand, title, category, metadata) from a barcode identifier, returning structured product details with confidence scoring.
Price / call$0.02
Success—
StatusUnknown
How this service works
Resolves a UPC/EAN or ISBN barcode into detailed product metadata using OpenLibrary and UPCitemdb free search endpoints.
Output
Returns a JSON object with: brand name, product title, category, image URL, extended metadata (e.g. author and page count for books), a 'supported' boolean indicating whether the barcode type is recognized, and a confidence level (e.g. 'high') for the match.
Example use cases
Example prompt
“I just scanned the barcode 9780143107996 on a book I found — can you look it up and tell me the title, author, and category?”
Technical details
Endpoint
POSThttps://statepulse-api.hahavoid0.workers.dev/product/barcodeWhen to prefer
Use this endpoint when an agent needs to identify a physical product from its barcode or UPC/EAN/ISBN number, especially to retrieve structured product metadata like brand, title, category, and images. Ideal for shopping assistants, inventory tools, book lookup, or receipt parsing where a barcode is available as the primary identifier.
Side effects
- Barcode not found in database — supported may be false or result may be empty
- Unknown barcode format — unsupported type returns supported: false
- Low confidence match — confidence field may return 'low' indicating uncertain result
- Payment failure — x402 USDC payment not completed, request rejected
- Malformed barcode input — invalid format returns error response
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"brand": "Penguin Classics",
"image": "https://covers.openlibrary.org/b/id/8240502-M.jpg",
"title": "The Odyssey",
"category": "Books",
"metadata": {
"author": "Homer",
"page_count": 560
}
},
"supported": true,
"confidence": "high"
}
}Tags
x402
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