Endpoint · lookupPOSTcreditcard.openverbs.com /v1/network
Detect the issuing network/brand (Visa, Mastercard, American Express, Discover, Diners Club, JCB, UnionPay, Maestro) from the card's IIN prefix, with the network's valid lengths.
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Detect the issuing network/brand (Visa, Mastercard, American Express, Discover, Diners Club, JCB, UnionPay, Maestro) from the card's IIN prefix, with the network's valid lengths. Returns `network:null` for an unrecognized prefix.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.002 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://creditcard.openverbs.com/v1/network
Seen
first 28 days ago · last 14 hr ago
52 free handshakes
Payment
Pays through
x402 · MPP evm, tempo
Offered on?
Base USDC, Tempo 0x8335…2913
Listed on?
Base
Handshakescomputed 1 day ago
0.728 from 51 free handshakes over 30 days · UNRATED ?
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| liveness it answered at all |
0.60 | 1.00 | 0.879 | 0.528 | 0 | −0.072 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.728 | gap to 1.000 = 0.272 · 0.200 short · 0.072 uncertain | 0.728 | −0.200 | −0.072 |
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://creditcard.openverbs.com/v1/networkcurl -s https://api.teppi.xyz/v1/trust/cap_01M1TKXT3ZDBZGPH8F9T1RBGGA