Sell airtime and data from your app

Check your balance

curl https://seamlesstopup.com.ng/api/v1/balance \
  -H "Authorization: Bearer sk_live_..."

Buy airtime

Purchases are signed. The signature covers the timestamp, a one-time nonce, the method, the path and a digest of the body — so nothing in flight can alter the amount.

const body = JSON.stringify({
  network: "MTN", phone: "08031234567", amount: 500
});

const ts = String(Math.floor(Date.now() / 1000));
const nonce = crypto.randomBytes(16).toString("hex");
const digest = crypto.createHash("sha256").update(body).digest("hex");
const base = `${ts}.${nonce}.POST./api/v1/airtime.${digest}`;

await fetch("https://seamlesstopup.com.ng/api/v1/airtime", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "X-MOX-Key": KEY_ID,
    "X-MOX-Timestamp": ts,
    "X-MOX-Nonce": nonce,
    "X-MOX-Signature": crypto
      .createHmac("sha256", SECRET).update(base).digest("hex"),
    "Idempotency-Key": crypto.randomUUID()
  },
  body
});

Signing snippets for PHP and Python are in the full reference.