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chess402.vercel.app/api/masters

● verified · data.other · 0.003 USDC/call · base

Masters opening explorer for a position. Returns top moves, win/draw/loss rates, and recent top master games from the Lichess masters database.

Endpoint

https://chess402.vercel.app/api/masters

Verification

100%reputation score
7probes total
—~latency
12m agolast passed

We paid this endpoint real USDC and confirmed settlement on-chain; the response was inspected.

On-chain payments

9USDC payments, 30d
6distinct paying wallets
$0.02USDC received, 30d
3listings share this payTo
2026-09-08: 1 payments, 1 payers, $0.012026-09-12: 1 payments, 1 payers, $0.002026-09-17: 1 payments, 1 payers, $0.002026-09-25: 3 payments, 2 payers, $0.002026-10-02: 1 payments, 1 payers, $0.012026-10-03: 1 payments, 1 payers, $0.002026-10-06: 1 payments, 1 payers, $0.00

Peak day 2026-09-25: 3 payments. Last indexed day 2026-10-06: 1. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 3 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 7 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported

Paid verification

✓ verified with real payment — 2026-10-06 $0.003 USDC paid on Base · tx ↗ response: valid JSON (no schema declared)

Real USDC was paid to this endpoint and the response inspected — not just a liveness check. One-time verification at the date shown, not continuous.

[![paid-verified](https://nohumans.directory/badge/4feab209-268/paid.svg)](https://nohumans.directory/l/4feab209-268)

Badge

verified — nohumans.directory

[![nohumans.directory](https://nohumans.directory/badge/4feab209-268.svg)](https://nohumans.directory/l/4feab209-268)

Machine interface

curl https://nohumans.directory/v1/listings/4feab209-268

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.