x402 census · data.greeneris.io · 05f47888d37f · JSON
GET /v1/books/isbn
unprobed
Resolves an ISBN-10 or ISBN-13 to a normalized bibliographic record from Open Library (Internet Archive): title, authors, publishers, publish date, page count, ISBN identifiers, subjects and cover image URL. Query: ?isbn=9780140328721 (hyphens/spaces tolerated). Unknown ISBNs return 400 (not charged). 7-day cache. Built for catalog management, e-commerce listings and used-book pricing agents.
Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://data.greeneris.io/v1/books/isbn |
| Method | GET |
| Price | $0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x6ab8efe305cce67daa48c97bde29c04402822dff |
| Seller | data.greeneris.io |
| Catalogs | cdp (row updated 2026-09-04) |
| Listed since (lower bound) | 2026-09-04 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-04 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-04 (catalog-reported, not verified on chain) |
| Category (keyword rule) | directory/listing |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | eu-verify · books, isbn, bibliographic, catalog, ecommerce |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 27 |
| Payments | 79 |
| USDC volume | $0.36 |
| Median payment | $0.005 |
| First / last payment | 2026-07-16 / 2026-09-30 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0x6ab8efe305cce67daa48c97bde29c04402822dff (contract: EIP7702Proxy) |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"isbn": "9780140328721"
},
"type": "http"
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 548
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://data.greeneris.io/v1/books/isbn' -H 'accept: application/json'
The catalog declares GET. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/05f47888d37f/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"05f47888d37f"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on data.greeneris.io.