passlisted in Coinbase#8 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
- 1
- Last called
- 2026-09-15 06:32 UTC
- First observed by TOLLderived
- 2026-09-10
- Pricederived
- 0.005 USDC
- Networks
- 3
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 and Arbitrum, 3 options in all, all to one wallet.
A response from chess check, as declared, includes game, proof, score, valid, correct, feedback and 1 other.
chess check answered the sweep of 2026-09-15 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 8th by calls with 2 others.
chess check takes 6% of the calls counted across agent-arcade.use.x402atlas.com.
One payer accounts for all 4 calls to chess check over 30 days.
The last call to chess check came on the day of the snapshot, 2026-09-15.
Closest in price to chess check within inference: chat completions at x402.orthogonal.com and agent record rubric assert at rubric-protocol.com.
chess check is priced above 17% of comparable listings in inference.
Within inference, 82% of endpoints with counters have fewer calls.
The wallet paid by chess check is the payee of 62 endpoints across 18 hosts.
Seller tags: chess-puzzle, chess-tactics, daily-chess and fen; seller label: "games".
The price of chess check is declared by 148 other listings in inference too.
the payment options, as of 2026-09-15 16:57 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 |
the checks, as of 2026-09-15 06:23 UTC · method · pinnableendpoint answered HTTP 402
No named check failed.
Every sweep that observed this endpoint, newest first.
| observed, UTC | state | failed checks | sweep |
|---|---|---|---|
| 2026-09-15 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 2026-09-15 06:32 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 2026-09-15 16:57 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 2026-09-15 16:57 UTC. https://tollindex.com/e/agent-arcade-use-x402atlas-com-chess-check-bd0d04/at/2026-09-15T16-57Z. Accessed [access date].
BibTeX
@misc{toll-e-agent-arcade-use-x402atlas-com-chess-check-bd0d04-2026-09-15T16-57Z,
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/2026-09-15T16-57Z}},
year = {2026},
month = {9},
note = {Pinned view of the snapshot of 2026-09-15 16:57 UTC. Accessed [access date].}
}None yet. Anything submitted through the form below is published here with its outcome.