Business APIs

Build on Probe Banks

RESTful APIs for payments, accounts, cards, and custody. Full sandbox environment, comprehensive documentation, and SDKs in every major language.

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Quick Start

Ship payments in minutes

A single API call to initiate cross-border payments with ProbeChain settlement. 400ms finality, 180+ currencies, automatic compliance checks.

Python Go TypeScript Java Rust

Full sandbox environment for testing. No real funds required until you go live.

// Initiate a cross-border payment
const payment = await probe.payments.create({
  amount: "50000.00",
  currency: "USD",
  destination: {
    account_id: "acc_9x8h2k...",
    currency: "EUR"
  },
  settlement: "probechain",
  memo: "Invoice #1042"
});

// Response: 400ms finality
console.log(payment.status);
// → "settled"
        

Endpoints

Complete financial API suite

Every banking primitive as an API. Payments, accounts, cards, FX, and custody — all accessible through a unified REST interface.

POST

Create Payment

/v1/payments

Initiate domestic or cross-border payments with automatic FX and ProbeChain settlement.

GET

List Accounts

/v1/accounts

Retrieve all accounts with balances across fiat, OZ gold, and crypto. Real-time data.

POST

Issue Card

/v1/cards

Issue virtual or physical cards with programmable spend controls and real-time notifications.

GET

FX Rates

/v1/fx/rates

Live foreign exchange rates for 180+ currency pairs. Mid-market, no hidden margins.

POST

Custody Vault

/v1/custody/vaults

Create custody vaults for gold, digital assets, or multi-sig wallets with on-chain proof of reserves.

WEBHOOK

Event Subscriptions

/v1/webhooks

Subscribe to real-time events: payment status, account changes, card transactions, compliance alerts.

Start Building

Your first API call in 5 minutes

Get sandbox API keys instantly. No credit card required. Full access to every endpoint with test data.

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