Developer Docs
Developer ManualEdition 01 · 2026

Financial API infrastructure

One clean interface
for messy financial data.

Build card intelligence, identity risk, currency, IBAN, and webhook tooling without maintaining five separate integrations.

Make your first request →Browse API reference
All systems operationalAPI v1 · EU
Base URLapi.finap.uk/api/v1
JSONRESTTypeScript
01 / One account balance02 / Server-side credentials03 / Typed responses04 / Usage-based billing

Start with proof

A useful response before your coffee cools.

Install one package, use one key, and call a service. No generated client maze and no ceremony around a simple request.

Read the 4-minute quickstart →
01

Look up a card BIN

POST /bin
import { FinapClient } from "@finap/sdk-node";

const finap = new FinapClient({
  apiKey: process.env.FINAP_API_KEY!,
  baseUrl: "https://api.finap.uk",
});

const card = await finap.bin.check("424242");

Service index

Five instruments.
One measured surface.

Use only the services attached to your account. Every successful request appears in the same usage ledger.

01BIN CheckIssuer, network, funding type, tier, and country.↗02CurrencyCurrent exchange rates from one base to one or many targets.↗03IBANStructural validation, SEPA rails, BBAN, BIC, and bank data.↗04FingerprintVisitor identity, risk, device, location, and event history.↗05WebhooksInstrumented test deliveries and disposable request inboxes.↗
Request pathOne key · five services
01Your serverApplication
Bearer fn_…
02Unified API
Typed JSON
01BIN Check02Currency03IBAN04Fingerprint05Webhooks
HTTPS / RESTNormalized responsesUsage metered

The operating model

Keep the integration thin.

FINAP handles provider contracts, response normalization, service metering, and failure boundaries. Your application keeps one server-side key and one response model.

Authentication →Usage & billing →Error handling →
FIN / 01

Ready when you are

Build against the API,
not around it.

Open the manual →Go to dashboard ↗