Base ERC-721 Owner

avoid grade C Base Polygon Arbitrum found on CDP Bazaar found on thirdweb found on x402scan delisted confidence 0.68
https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_erc721_ownerof
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Advertised descriptionBase NFT (ERC-721) owner of a token id. NFT owner read on Base: takes token (ERC-721 contract, 0x + 40 hex) and id (decimal token id) and returns the address that ownerOf(id) reports on the contract.(Provider-supplied: an unverified claim, not checked by us. The trust grade above is our independent measurement.)
30-day uptime
63.5%
Avg latency (EU)
1397 ms
slow · measured from a single EU vantage point; includes network round-trip distance to the endpoint; a geographically distant endpoint reads slower even when its server is fast, so it is only lightly weighted in the score
Confidence
0.68
full-density score
Advertised price
$0.003
USDC
Price stability
Stable
last 30 days
Probes (30d)
52
full record · up to 48/day
More details ▾
Endpoint ID262322
Pay on Base$0.003 USDC · to 0xBF32…a035 ↗
Pay on Polygon$0.003 USDC · to 0xBF32…a035 ↗
Pay on Arbitrum$0.003 USDC · to 0xBF32…a035 ↗
First seen2026-10-17
Last probed2026-10-27
Statusdelisted
Delisted at2026-10-25
Snapshot computed2026-10-28 00:47 UTC (free snapshot, recomputed at least every 24h)
Why this verdict?5 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 57 hours ago). 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).