Turn any card BIN into a decision, not just metadata. In under 1ms you get an approve / review / decline call, a risk score with reasons, issuer data, and card-performance signals (rebill, refund, chargeback risk + projected LTV).
Most BIN APIs return brand/bank/country and stop. BillionCore returns a recommendation you can act on โ fast enough to run inline at checkout โ with the reasoning attached.
One REST GET endpoint, JSON, key auth, batch supported. Call it from any stack in minutes. Also on RapidAPI.
Start free โ 30-day Pro trial, no card.
๐ Live demo, no signup: https://billioncore.tech
Sub-millisecond response
In-memory Go engine returns a decision in under 1ms
Decision, not just data
Approve / review / decline with the reasons โ not just card metadata
Fraud & chargeback scoring
Per-BIN chargeback, refund and rebill risk, plus projected LTV
Issuer metadata
Bank, brand, card type and country for every BIN
Privacy-friendly
BIN only โ the full card number is never required or stored
Simple REST API
One GET endpoint, JSON response, key auth; batch lookups supported
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