F33.2 / 100
k2so.wrong.systems/api/services/live-advertised-vs-billed-price-divergence-index
Advertised description
(Provider-supplied: an unverified claim, not checked by us. The trust grade above is our independent measurement.)
Live price-honesty index: which x402 merchants advertise one price in the 402 challenge and bill a different amount after settlement. Agent input: challenge price, billed amount, merchant id. Output: divergence ratio,…
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Live price-honesty index: which x402 merchants advertise one price in the 402 challenge and bill a different amount after settlement. Agent input: challenge price, billed amount, merchant id. Output: divergence ratio, severity class (soft flag >= 1.5x, hard flag >= 3x, no-pay >= 10x), pay/skip verdict, evidence row. Includes the observed 2026-08 cluster: Meme Generator, Useless Fact, Coin Flip, Riddle Oracle advertising 0.001 to 0.002 but billing 0.01, and onesource.io block-number billing 2x
30-day uptime
0.0%
Avg latency (EU)
—
Confidence
0.57
full-density score
Advertised price
—
not advertised
Price stability
Stable
last 30 days
Probes (30d)
22
full record · up to 48/day
More details ▾
| Endpoint ID | 109215 |
| Pay on Base | $0.002 USDC · to 0xc85f…0604 ↗ |
| First seen | 2026-08-13 |
| Last probed | 2026-10-28 |
| Status | listed |
| Snapshot computed | 2026-10-29 10:17 UTC (free snapshot, recomputed at least every 24h) |
Why this verdict?2 error flags1 warning
A wallet payment page opens first; approve the USDC payment and the full JSON report loads right in your browser. Want a taste first? Read a free full sample report.
This page is the free cached snapshot (computed 23 hours ago, refreshed at least every 24h). Here's what the paid API adds.
✓Live re-probe at decision time
The score is computed the moment you ask, not up to 24h ago.✓Instant snapshot refresh
Every paid call rewrites this page, the badge and the card immediately.✓The full “why”, machine-readable
Confidence band, component breakdown, every risk flag with its evidence.✓On-chain settlement proof
Real USDC volume and distinct payers behind the pay-to wallet.✓90-day raw history
Every listing, price and payTo change, every probe result.✓Ranked better alternatives
Higher-scored endpoints serving the same function, when they exist.✓Change & liveness alerts
PayTo/price moves, spec regressions, downtime; 5-minute probes while watched.
$
npx -y x402-trust-mcpGive your agents the tools to do all of this for you, with one install. Agents use the x402_trust_score MCP tool or POST /v1/x402-trust directly (pay-per-call over x402, from $0.005).