chess402.vercel.app
chess402.vercel.app · 4 paid endpoints · listed 2026-10-27
Today's Lichess daily puzzle: source game, themes, initial position, solution moves, and rating.
livelast check 5 days ago
100%valid x402 answers, 72 h
$0.043USDC received on Base, 7 days
11distinct payers, 7 days
57.3score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| POST | chess402.vercel.app/api/puzzle/daily Today's Lichess daily puzzle: source game, themes, initial position, solution moves, and rating. | $0.001 | Base |
| POST | chess402.vercel.app/api/user Lichess user profile snapshot: ratings per perf, country, title, online status, counts. | $0.001 | Base |
| POST | chess402.vercel.app/api/masters Masters opening explorer for a position. Returns top moves, win/draw/loss rates, and recent top master games from the Lichess masters database. | $0.003 | Base |
| POST | chess402.vercel.app/api/cloud-eval Stockfish cloud evaluation for a FEN position. Returns depth, evaluation, and principal variation(s) when Lichess has the position cached. | $0.005 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | chess402.vercel.app/api/cloud-eval | 402 | 373 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-11-01 | 1 | $0.001 | |
| 2026-10-31 | 3 | $0.003 | |
| 2026-10-30 | 12 | $0.012 | |
| 2026-10-29 | 4 | $0.004 | |
| 2026-10-28 | 1 | $0.005 | |
| 2026-10-27 | 1 | $0.005 | |
| 2026-10-25 | 11 | $0.013 |
Is this your API?
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Claim it for free with
<a href="https://logicnodes.io/observatory/p/chess402.vercel.app"><img src="https://logicnodes.io/observatory/badge/chess402.vercel.app.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/chess402.vercel.app