FinAPI

// Your unified API key
const apiKey = "FINAPI_XXXXX";

// Example STK Push
fetch("https://finapi.io/stk/push", {
    method: "POST",
    headers: { "Authorization": `Bearer ${apiKey}` },
    body: JSON.stringify({
        provider: "swiftwallet",
        phone: "254712345678",
        amount: 150
    })
})
.then(res => res.json())
.then(data => console.log("Payment Sent:", data));