Chess402

chess402.vercel.app

Chess402 enables per-call monetization of Lichess chess endpoints through x402 micropayment gates for engine queries and game data.

developer_tool

from$0.001

Trust signal

Listed1212/ 100

2 of 4 pillars

coverage 50%

Pillars

Traction

20%

Liveness

—

Identity

Longevity

—

Signals

On-chain settlement (CDP)

Active in last 30 days

Endpoint reachable

GitHub org present

X (Twitter) handle

.well-known/agent.json

skill.md published

ERC-8004 registered

Evidence tiers, not an endorsement · trust model v0.1.0 (provisional) · CDP-lane settlement only (D3) · Trust API coming soon

On-chain traction

No on-chain settlement recorded. Unverified = not settled or not yet indexed — never treated as zero.

ERC-8004 agent registry

—Not registered

Not found in the ERC-8004 agent registry. This is the default state — absence is not a negative signal.

Identity & classification

Domainchess402.vercel.app

Xunverified

GitHubunverified

ENSunverified

Category confidenceunscored

Settlement volume

📊

Per-service timeline not available yet. No settlement recorded for this entity in the indexed period.

Endpoints(4)

https://chess402.vercel.app/api/puzzle/daily

Today's Lichess daily puzzle: source game, themes, initial position, solution moves, and rating.

$0.0010 USDCpay_to unverifiedunprobed

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

Lichess user profile snapshot: ratings per perf, country, title, online status, counts.

$0.0010 USDCpay_to unverifiedunprobed

https://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.

$0.0030 USDCpay_to unverifiedunprobed

https://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.

$0.0050 USDCpay_to unverifiedunprobed