https://2s.io/api/finance/bin
Identify a payment card from its BIN/IIN (Bank Identification Number — the leading 6-8 digits). Pass the BIN or the first digits of a card number and get the card brand (Visa, Mastercard, …), card type (debit/credit), category, issuing bank, and country (ISO alpha-2 + name). Longest-prefix match against an open community dataset (CC-BY). The BIN identifies the issuer/brand/country only — never the cardholder or account number. For payment routing, fraud checks, and checkout UX.
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://2s.io/api/finance/bin", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
HEAD https://2s.io/ returned 200.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: healthy.
EVIDENCE
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call.