passlisted in Coinbase#3 by calls of 10 on this host
0.005 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
- 3
- Last called
- 2026-10-08 05:33 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.005 USDC
- Networks
- 4
How has the volume on this endpoint moved?
agent-arcade.use.x402atlas.com serves chess check, a POST endpoint that TOLL places in inference, listed in the Coinbase registry.
chess check is priced at 0.005 USDC on Base.
The request to chess check is a json body with the fields date, answer, difficulty, challenge_id and generation_version.
chess check accepts payment on Base, Polygon, Arbitrum and Solana, 4 options in all, to 2 different wallets.
A response from chess check, as declared, includes game, proof, score, valid, correct, feedback and 1 other.
chess check answered the sweep of 2026-10-18 with a valid 402, as at every sweep since 2026-09-11.
chess check shares agent-arcade.use.x402atlas.com with 9 other listed endpoints and is tied 3rd by calls with 2 others.
chess check takes 10% of the calls counted across agent-arcade.use.x402atlas.com.
The registry's counters give chess check 4 calls and 3 unique payers over 30 days.
The last call to chess check came 5 days before the snapshot, 2026-10-08.
Closest in price to chess check within inference: google ai mode ai mode at x402.openwebninja.com and llm at api.losbeto.xyz.
chess check is among the cheapest in inference; 9% of comparable listings ask less.
Across inference, 8,525 endpoints carry counters and chess check out-counts 91% of them.
The payee wallet is shared by 82 listings across 32 hosts.
The seller's tags on chess check are chess-puzzle, chess-tactics, daily-chess and fen, and its label is "games".
The price of chess check is declared by 314 other listings in inference too.
the payment options, as of 2026-10-13 14:08 UTC · method · pinnable
| registry | network | asset | amount | scheme | pay to |
|---|---|---|---|---|---|
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0x8C128f…5Df1b2 |
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0x8C128f…5Df1b2 |
| Coinbase | eip155: | USDC | 0.005 USDC | exact | 0x8C128f…5Df1b2 |
| Coinbase | solana: | USDC | 0.005 USDC | exact | ASt6xvRy…2tXrNQ |
the checks, as of 2026-10-18 19:07 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-10-18 19:07 UTC | pass | 0 | daily-2026-10-18 |
| 2026-10-16 08:51 UTC | pass | 0 | daily-2026-10-16 |
| 2026-10-15 10:48 UTC | pass | 0 | daily-2026-10-15 |
| 2026-10-14 08:39 UTC | pass | 0 | daily-2026-10-14 |
| 2026-10-13 13:31 UTC | pass | 0 | daily-2026-10-13 |
| 2026-10-12 10:55 UTC | pass | 0 | daily-2026-10-12 |
| 2026-10-11 09:37 UTC | pass | 0 | daily-2026-10-11 |
| 2026-10-10 17:47 UTC | pass | 0 | daily-2026-10-10 |
| 2026-10-09 11:00 UTC | pass | 0 | daily-2026-10-09 |
| 2026-10-08 12:34 UTC | pass | 0 | daily-2026-10-08 |
| 2026-10-07 11:49 UTC | pass | 0 | daily-2026-10-07 |
| 2026-10-06 12:31 UTC | pass | 0 | daily-2026-10-06 |
| 2026-10-05 11:06 UTC | pass | 0 | daily-2026-10-05 |
| 2026-10-04 13:52 UTC | pass | 0 | daily-2026-10-04 |
| 2026-10-03 07:18 UTC | pass | 0 | daily-2026-10-03 |
| 2026-10-02 16:27 UTC | pass | 0 | daily-2026-10-02 |
| 2026-10-01 09:11 UTC | pass | 0 | daily-2026-10-01 |
| 2026-09-30 08:38 UTC | pass | 0 | daily-2026-09-30 |
| 2026-09-29 20:45 UTC | pass | 0 | daily-2026-09-29 |
| 2026-09-23 07:41 UTC | pass | 0 | daily-2026-09-23 |
| 2026-09-22 07:55 UTC | pass | 0 | daily-2026-09-22 |
| 2026-09-21 08:17 UTC | pass | 0 | daily-2026-09-21 |
| 2026-09-19 06:16 UTC | pass | 0 | daily-2026-09-19 |
| 2026-09-17 06:07 UTC | pass | 0 | daily-2026-09-17 |
| 2026-09-16 06:06 UTC | pass | 0 | daily-2026-09-16 |
| 2026-09-15 06:23 UTC | pass | 0 | daily-2026-09-15 |
| 2026-09-14 05:52 UTC | pass | 0 | daily-2026-09-14 |
| 2026-09-13 05:45 UTC | pass | 0 | daily-2026-09-13 |
| 2026-09-12 08:02 UTC | pass | 0 | daily-2026-09-12 |
| 2026-09-11 11:59 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 05:33 UTC · method · live
The input and output block
{
"input": {
"body": {
"date": "2026-07-01",
"answer": {
"moves": [
"d1h5",
"h7h6",
"h5c5"
]
},
"difficulty": "normal",
"challenge_id": "sha256:50697ebea7b2cc5947da85e12fe2069f49983c4ba3d206b09540d80733c0153a",
"generation_version": "v1"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"game": "chess",
"proof": {
"normalized_line": [
"d1h5",
"h7h6",
"h5c5"
]
},
"score": 100,
"valid": true,
"correct": true,
"feedback": {
"message": "complete legal principal line",
"required_moves": 3,
"submitted_moves": 3,
"first_invalid_move": null
},
"challenge_id": "sha256:50697ebea7b2cc5947da85e12fe2069f49983c4ba3d206b09540d80733c0153a"
}
}
}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, "chess check on agent-arcade.use.x402atlas.com", snapshot of 2026-10-13 14:08 UTC. https://tollindex.com/e/agent-arcade-use-x402atlas-com-chess-check-bd0d04/at/2026-10-13T14-08Z. Accessed [access date].
BibTeX
@misc{toll-e-agent-arcade-use-x402atlas-com-chess-check-bd0d04-2026-10-13T14-08Z,
author = {TOLL},
title = {chess check on agent-arcade.use.x402atlas.com},
howpublished = {\url{https://tollindex.com/e/agent-arcade-use-x402atlas-com-chess-check-bd0d04/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.