API Reference
The Settlr API lets you create payment links, request withdrawals, and receive real-time webhook events when transactions complete.
Authentication
All API requests must include your secret key in the Authorization header. Keep your secret key on the server — never expose it in client-side code or browsers.
Authorization: Bearer sk_live_YOUR_SECRET_KEY
Create a payment link
https://payments.afriversedao.org/api/payment-linksCreates a new pending payment and returns a hosted checkout URL to redirect your customer to.
POST https://payments.afriversedao.org/api/payment-links
Authorization: Bearer sk_live_...
Content-Type: application/json
{
"email": "customer@example.com",
"amount": 25000,
"redirectTo": "https://yourapp.com/order/complete"
}Request body
emailrequired | string | The customer's email address. They'll receive a confirmation when payment is detected. |
amountrequired | integer | Amount in Naira (NGN). Must be a whole number — no decimals. E.g. 25000 for ₦25,000. |
redirectTorequired | string | URL to redirect the customer to after their payment is confirmed. |
Response
{
"id": "clx4f2g0000abc123",
"url": "https://payments.afriversedao.org/pay/clx4f2g0000abc123",
"reference": "PAY-1A2B3C4D",
"amount": 25000,
"email": "customer@example.com"
}Redirect your customer to url. They will see the exact transfer amount and bank account details. Store reference against your order — you'll receive it back in the webhook.
Payment lifecycle
A payment moves through the following statuses. Your webhook fires on approved and declined.
Payment created. Waiting for customer to transfer.
Transfer detected and confirmed. Webhook fires with charge.success.
Payment was manually declined by the gateway. Webhook fires with charge.failed.
No transfer received within 30 minutes. No webhook is sent.
Virtual accounts
Programmatically create a dedicated bank account (powered by Flutterwave) tied to a specific amount and expiry. Show the returned account number to your customer — when they transfer the exact amount, the account is funded and your charge.success webhook fires.
https://payments.afriversedao.org/api/virtual-accountsCreates a dedicated virtual account for a single collection.
POST https://payments.afriversedao.org/api/virtual-accounts
Authorization: Bearer sk_live_...
Content-Type: application/json
{
"amount": 25000,
"email": "customer@example.com",
"expirySeconds": 900
}Request body
amountrequired | integer | Amount in Naira (NGN). Whole number, between 100 and 10,000,000. The customer must transfer this exact amount. |
email | string | Optional. The customer's email — attached to the Flutterwave customer and used for the confirmation email. Defaults to a Settlr placeholder when omitted. |
expirySeconds | integer | Optional. Account lifetime in seconds (60–31,536,000). Defaults to 900 (15 minutes). |
bankCode | string | Optional. Partner bank for the account — WEMA (035) or Sterling (232). Defaults to the platform's configured bank. |
Response
{
"id": "clx9v1a0000va0001",
"reference": "va3f9c2a1b8d4e6f0...",
"provider": "flutterwave",
"amount": 25000,
"currency": "NGN",
"status": "pending",
"accountNumber": "7824822527",
"bankName": "WEMA BANK",
"email": "customer@example.com",
"expiresAt": "2026-06-16T13:54:21.546Z",
"paidAt": null,
"createdAt": "2026-06-16T13:39:21.546Z"
}Display accountNumber and bankName to your customer. Store reference against your order — you'll receive it back in the charge.success webhook when the account is funded.
Retrieve a virtual account
https://payments.afriversedao.org/api/virtual-accounts/:idFetch a single virtual account's current status.
https://payments.afriversedao.org/api/virtual-accountsList your most recent virtual accounts.
An account is pending until funded (paid), or becomes expired if the expiry elapses with no transfer.
Create a withdrawal
https://payments.afriversedao.org/api/withdrawalRequests a payout to a bank account. The withdrawal is queued for processing and you'll receive a webhook when it's sent or declined.
POST https://payments.afriversedao.org/api/withdrawal
Authorization: Bearer sk_live_...
Content-Type: application/json
{
"email": "customer@example.com",
"accountName": "John Doe",
"accountNumber": "0123456789",
"bank": "GTBank",
"amount": 15000,
"transactionId": "your-unique-tx-id-001"
}Request body
emailrequired | string | Recipient's email address. They'll be notified when the withdrawal is processed. |
accountNamerequired | string | Exact name on the bank account. |
accountNumberrequired | string | 10-digit NUBAN account number. |
bankrequired | string | Bank name. E.g. GTBank, Access Bank, OPay. |
amountrequired | integer | Amount in Naira to withdraw. |
transactionIdrequired | string | Your unique identifier for this withdrawal. Used for idempotency — submitting the same ID twice returns the original. |
Response
{
"id": "clx4g1h0000xyz789",
"status": "requested",
"amount": 15000,
"bank": "GTBank",
"accountNumber": "0123456789"
}Webhooks
Settlr sends a signed POST request to your webhook URL when a payment or withdrawal status changes. Configure your webhook URLs and secrets in the dashboard settings.
Payment webhook — charge.success
{
"event": "charge.success",
"data": {
"reference": "PAY-1A2B3C4D"
}
}Virtual account fundings fire the same charge.success event, with extra fields — match on reference:
{
"event": "charge.success",
"data": {
"reference": "va3f9c2a1b8d4e6f0...",
"amount": 25000,
"accountNumber": "7824822527",
"provider": "flutterwave",
"providerTxId": "chg_Hq4oBRTJ4r"
}
}Withdrawal webhook
{
"transactionId": "your-unique-tx-id-001",
"amount": 15000,
"status": "sent" // or "declined"
}Verifying signatures
Every webhook request includes a signature header. Always verify it before processing the event.
Payment webhook — header: x-nexgen-signature
import { createHmac } from "crypto";
function verifyPaymentWebhook(rawBody: string, signature: string, secret: string) {
const expected = createHmac("sha512", secret)
.update(rawBody)
.digest("hex");
return signature === expected;
}Withdrawal webhook — header: x-nexgen-withdrawal-signature
import { createHmac } from "crypto";
function verifyWithdrawalWebhook(rawBody: string, signature: string, secret: string) {
const expected = createHmac("sha512", secret)
.update(rawBody)
.digest("hex");
return signature === expected;
}Responding to webhooks
Return a 200 status as quickly as possible. Do your processing asynchronously — if your endpoint takes too long or returns a non-2xx status, delivery may be retried.
Errors
All errors return a JSON object with an error field describing the problem.
| Status | Meaning |
|---|---|
400 | Bad request — a required field is missing or malformed. |
401 | Unauthorized — your API key is missing or invalid. |
403 | Forbidden — your key doesn't have permission for this action. |
404 | Not found — the requested resource doesn't exist. |
409 | Conflict — a resource with this ID already exists (e.g. duplicate transactionId). |
429 | Rate limited — slow down and retry after a short delay. |
500 | Server error — something went wrong on our end. Contact support if it persists. |
// Example error response
{
"error": "amount is required and must be a positive integer"
}