Discover / www.web3id.xyz

leakguard backtest-leak audit (x402 paid)

■ Challenge detected

Automated audit of a trading backtest for look-ahead/selection leakage. POST a JSON series; get back a verdict on four leak classes (future-data peeking, min/max used as AUC, inverted rank polarity, over-strong feature false positives) plus the exact evidence lines. Paid per call over the x402 standard: 0.05 USDC on solana-mainnet, settles directly to the service operator's address with no account and no KYC. Unpaid calls return HTTP 402 with the challenge; paid signatures are verified on-chain

x402
Base
USDC
Verification

Listed price: $0.15
Challenge detected: 3 of the last 3 checks
Median response: 513 ms
Last checked: 16 Oct, 18:49 UTC
In our index since: 14 Oct 2026

Endpoint

curl -i https://www.web3id.xyz/x402/audit/x402/audit
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

1 listed endpoints · on x402-list.com

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

GEThttps://www.web3id.xyz/x402/audit/x402/audit$0.15leakguard backtest-leak audit (4 detectors, self-validating)

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 1 of 1 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/www.web3id.xyz

Recent checks

14 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026

All 3 checks

When (UTC)	Result	HTTP	Response
16 Oct, 18:49 UTC	Challenge detected	402	502ms
15 Oct, 14:11 UTC	Challenge detected	402	552ms
14 Oct, 08:45 UTC	Challenge detected	402	513ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 18:49 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for leakguard backtest-leak audit (x402 paid)?

Its listed price is $0.15.

What payment terms does leakguard backtest-leak audit (x402 paid) advertise?

The listing advertises x402, Base and USDC. Check the seller's current payment challenge and authentication requirements before paying.

Where is leakguard backtest-leak audit (x402 paid) listed?

In x402-list.com. Superstables first indexed it on 14 Oct 2026.

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