Endpoint · onchainGETapi.arysphere.com /v1/ventures/x402_chain_reads_v1/base_erc721_ownerof ?id=5256424&token=0xa990c6a764b73bf43cee5bb40339c3322fb9d55f
Base NFT (ERC-721) owner of a token id.
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Base 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.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.003 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_erc721_ownerof?id=5256424&token=0xa990c6a764b73bf43cee5bb40339c3322fb9d55f
MCP server on this host: com.arysphere/arysphere-x402
Seen
first 6 days ago · last 14 hr ago
6 free handshakes
Payment
Pays through
x402
Offered on?
Polygon, Arbitrum, Base USDC
Listed on?
Polygon, Arbitrum, Base
Handshakescomputed 2 days ago
0.326 from 5 free handshakes over 30 days · UNRATED ?
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.000 | 0.000 | 0 | −0.600 | |
| latency p95 it answered as fast as its class |
0.20 | 0.63 | 0.629 | 0.126 | −0.074 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.326 | gap to 1.000 = 0.674 · 0.074 short · 0.600 uncertain | 0.326 | −0.074 | −0.600 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
BURN_INFREE_TIER_ONLY
Verify it yourself
npx teppi-check https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_erc721_ownerof?id=5256424&token=0xa990c6a764b73bf43cee5bb40339c3322fb9d55fcurl -s https://api.teppi.xyz/v1/trust/cap_01M546CNG7N585XFNQBGCNBESF