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EchoGateway
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One integration for every Nigerian payment channel.

A small REST API with signed requests and signed webhooks. Integrate once; we look after Paystack, Flutterwave, Monnify, Interswitch, Remita, Squad, Korapay, OPay and the rest.

API referenceGet API keys
# Sign every request: HMAC-SHA512(timestamp + "." + body, secret_key)
curl https://www.echogateway.ng/api/v1/transactions/initialize \
  -H "X-EG-Public-Key: pk_live_…" \
  -H "Authorization: Bearer sk_live_…" \
  -H "X-EG-Timestamp: 1793611200" \
  -H "X-EG-Signature: 9f2c…" \
  -d '{"amount": 45000, "merchant_reference": "ORDER-10234"}'

How a payment flows

  1. Step 1

    Create

    Your server calls /transactions/initialize with the amount and your order reference.

  2. Step 2

    Redirect

    Send the customer to the checkout_url. They pick a channel and pay.

  3. Step 3

    Confirm

    We verify with the processor and POST a signed transaction.successful webhook.

  4. Step 4

    Settle

    The money is split and paid to your bank account on your settlement cycle.

Idempotent by design

Send your own merchant_reference; repeating a request returns the same transaction instead of charging twice.

Webhooks that retry

Up to six attempts with back-off, a delivery log in your dashboard and a one-click resend.

Test with Postman

Simulate successful payments for every processor in test mode before you go live.