agent-arcade.use.x402atlas.com publishes 4 machine-payable endpoints over the x402 protocol, priced from $0.005 to $0.005 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /chess/daily | GET | $0.005 | 402 |
| /trivia/daily | GET | $0.005 | 402 |
| /twenty-four/check | POST | $0.005 | 402 |
| /twenty-four/daily | GET | $0.005 | 402 |
Chess Daily tactics puzzle — solve a deterministic UTC daily position from a pinned CC0 Lichess subset using legal UCI moves.
Trivia Daily knowledge challenge — answer one deterministically selected and shuffled question from a curated local set.
Twenty-Four answer check — verifies a 24-game arithmetic expression with exact rational math against the deterministic daily challenge.
Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic solvable UTC daily challenge for agent reasoning benchmarks.