Crypto Microdata for Agents

unverified grade ? Base found on CDP Bazaar found on thirdweb found on PayAI found on x402scan confidence 0.10
https://kr-x402-mvp.kgy5612.workers.dev/crypto/x402-check
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Advertised description
Should my agent pay this x402 endpoint? Live pre-payment check of ANY x402 URL (never pays it): we GET the target unpaid and decode its 402 quote (PAYMENT-REQUIRED header for v2, JSON body for v1) -> x402 version, every…Show more ▾Show less ▴Should my agent pay this x402 endpoint? Live pre-payment check of ANY x402 URL (never pays it): we GET the target unpaid and decode its 402 quote (PAYMENT-REQUIRED header for v2, JSON body for v1) -> x402 version, every accepts[] option with real USD price (atomic amount / decimals), network name, asset (is it canonical USDC on that chain?), scheme, payTo, maxTimeoutSeconds, resource URL match, Bazaar discovery schema present?, description, latency_ms and TLS. For Base payTo we add is_contract and its live USDC balance (has it ever been paid?). Risk flags (non_usdc_asset, price_over_budget, price_over_1usd, resource_host_mismatch, no_402, testnet_only, payto_zero, slow_response, no_schema) roll up to verdict SAFE_TO_PAY|CAUTION|AVOID, should_pay, cheapest_option and within_budget for max_usd=. When to call: before your agent pays an unfamiliar paid API, or to pick the cheapest of several. Live probe, not stale stored evidence, at 1/5 the price of $0.01 x402 recommendation APIs. https only, public hosts only; target unreachable = 502 = not charged.
(Provider-supplied: an unverified claim, not checked by us. The trust grade above is our independent measurement.)
⚠
No verifiable measurement. We could not measure this endpoint's reliability (no verifiable probes and no advertised payment requirements to fall back on). The grade is unknown, not a negative verdict.
30-day uptime
—
not probed
Avg latency (EU)
—
Confidence
0.10
full-density score
Advertised price
—
not advertised
Price stability
Stable
last 30 days
Probes (30d)
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full record · up to 48/day
More details ▾
Endpoint ID359875
Pay on Base$0.002 USDC · to 0xe4be…2617 ↗
First seen2026-10-30
Last probed—
Statuslisted
Snapshot computed2026-10-30 00:29 UTC (free snapshot, recomputed at least every 24h)
Why this verdict?1 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 15 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).