passlisted in Coinbase#165 by calls of 582 on this host
0.001 USDC
per call, as the listing declares it on eip155:
- Validation state
- pass
- Uptime, 7 / 30 / 90 days
- 100% / 100% / 100%
- Calls, trailing 30 days
- 4
- Unique payers, trailing 30 days
- 4
- Last called
- 2026-10-08 08:18 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.001 USDC
- Networks
- 12
How has the volume on this endpoint moved?
Of agent402.tools's 582 listings, isbn validate ranks tied 165th by calls with 138 others.
Requests carry a json body with the field isbn.
A response from isbn validate, as declared, includes valid and format.
Over 30 days: 4 calls, 4 payers, every call from a different payer.
isbn validate was last called 5 days before the snapshot.
It is priced at 0.001 USDC on Base.
isbn validate accepts payment on Base, Polygon, Arbitrum, Monad and 8 others, 13 options in all, to 4 different wallets.
TOLL files isbn validate under the "other" category: a POST endpoint on agent402.tools, listed in the Coinbase registry.
isbn validate answered the sweep of 2026-10-23 with a valid 402, as at every sweep since 2026-09-11.
Closest in price to isbn validate within the "other" category: convert timezone at 402timezones.vercel.app and abstractapi live at x402.orthogonal.com.
isbn validate is the cheapest of 3,827 comparable listings in the "other" category; none asks less.
isbn validate out-counts 66% of the 3,825 endpoints in the "other" category that carry counters.
For 6 of the options on isbn validate, TOLL has no verified decimals and shows the raw amount. isbn validate declares exact and upto as payment schemes.
Its payee wallet receives for 615 listed endpoints on one host.
The seller's tags on isbn validate are validation, isbn, books and validate.
555 other listings in the "other" category declare exactly the same price.
the payment options, as of 2026-10-13 14:08 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 1000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.001 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 1000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.002 USDC | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | Global Dollar | 1000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 1000 smallest units, decimals unknown | exact | 0xaBF4FA…e2a9D0 |
| Coinbase | eip155: | USDC | 0.001 USDC | upto | 0xaBF4FA…e2a9D0 |
| Coinbase | solana: | USDC | 0.001 USDC | exact | J7aN3PLJ…Gv3xwg |
| Coinbase | stellar: | CCW67TSZ…SJMI75 | 10000 smallest units, decimals unknown | exact | GDNJXCKW…FJWWRL |
| Coinbase | algorand: | 31566704 | 1000 smallest units, decimals unknown | exact | C7IIHG7S…OY2XIE |
the checks, as of 2026-10-23 09:58 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-10-23 09:58 UTC | pass | 0 | daily-2026-10-23 |
| 2026-10-21 12:26 UTC | pass | 0 | daily-2026-10-21 |
| 2026-10-20 12:07 UTC | pass | 0 | daily-2026-10-20 |
| 2026-10-19 09:45 UTC | pass | 0 | daily-2026-10-19 |
| 2026-10-18 11:33 UTC | pass | 0 | daily-2026-10-18 |
| 2026-10-16 07:42 UTC | pass | 0 | daily-2026-10-16 |
| 2026-10-15 09:33 UTC | pass | 0 | daily-2026-10-15 |
| 2026-10-14 07:31 UTC | pass | 0 | daily-2026-10-14 |
| 2026-10-13 12:19 UTC | pass | 0 | daily-2026-10-13 |
| 2026-10-12 09:43 UTC | pass | 0 | daily-2026-10-12 |
| 2026-10-11 08:21 UTC | pass | 0 | daily-2026-10-11 |
| 2026-10-10 16:31 UTC | pass | 0 | daily-2026-10-10 |
| 2026-10-09 09:27 UTC | pass | 0 | daily-2026-10-09 |
| 2026-10-08 10:52 UTC | pass | 0 | daily-2026-10-08 |
| 2026-10-07 10:16 UTC | pass | 0 | daily-2026-10-07 |
| 2026-10-06 11:01 UTC | pass | 0 | daily-2026-10-06 |
| 2026-10-05 09:48 UTC | pass | 0 | daily-2026-10-05 |
| 2026-10-04 11:58 UTC | pass | 0 | daily-2026-10-04 |
| 2026-10-03 06:32 UTC | pass | 0 | daily-2026-10-03 |
| 2026-10-02 15:43 UTC | pass | 0 | daily-2026-10-02 |
| 2026-10-01 08:32 UTC | pass | 0 | daily-2026-10-01 |
| 2026-09-30 07:55 UTC | pass | 0 | daily-2026-09-30 |
| 2026-09-29 20:07 UTC | pass | 0 | daily-2026-09-29 |
| 2026-09-28 17:11 UTC | pass | 0 | daily-2026-09-28 |
| 2026-09-23 07:08 UTC | pass | 0 | daily-2026-09-23 |
| 2026-09-22 07:21 UTC | pass | 0 | daily-2026-09-22 |
| 2026-09-21 07:43 UTC | pass | 0 | daily-2026-09-21 |
| 2026-09-19 05:45 UTC | pass | 0 | daily-2026-09-19 |
| 2026-09-18 14:16 UTC | pass | 0 | daily-2026-09-18 |
| 2026-09-17 05:36 UTC | pass | 0 | daily-2026-09-17 |
| 2026-09-16 05:36 UTC | pass | 0 | daily-2026-09-16 |
| 2026-09-15 05:53 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 05:25 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 05:20 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 07:37 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 11:25 UTC | pass | 0 | daily-2026-09-11 |
Presence in a registry, not liveness of the service (method). Newest first.
- listed in Coinbase
From the registry record, not validated by TOLL.the declared schema, as of 2026-10-08 08:18 UTC · method · live
The input and output block
{
"input": {
"body": {
"isbn": "978-0-306-40615-7"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"valid": true,
"format": "ISBN-13"
}
}
}Cite this page
The pinned URL below renders this page from the snapshot of 2026-10-13 14:08 UTC and does not change; the live page does, every six hours. Data reuse is under CC BY 4.0 (terms).
Plain text
TOLL, "isbn validate on agent402.tools", snapshot of 2026-10-13 14:08 UTC. https://tollindex.com/e/agent402-tools-api-isbn-validate-93e0c6/at/2026-10-13T14-08Z. Accessed [access date].
BibTeX
@misc{toll-e-agent402-tools-api-isbn-validate-93e0c6-2026-10-13T14-08Z,
author = {TOLL},
title = {isbn validate on agent402.tools},
howpublished = {\url{https://tollindex.com/e/agent402-tools-api-isbn-validate-93e0c6/at/2026-10-13T14-08Z}},
year = {2026},
month = {10},
note = {Pinned view of the snapshot of 2026-10-13 14:08 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.