Get Started
Learn how FastFlowPe works and set up your integration in minutes.
Authentication
Generate your X-API-Key and authenticate every API request.
Accept Payments
Create payment links and initiate PayIn transactions.
Send Payouts
Transfer funds to beneficiaries via IMPS, NEFT, or RTGS.
Process Refunds
Initiate and track refunds for completed PayIn transactions.
Webhooks
Receive real-time callbacks when transaction statuses change.
How it works
1
Get your credentials
Log in to the merchant dashboard and navigate to Settings → API to find your Client ID and Client Secret.
2
Generate an X-API-Key
Use your credentials to generate a short-lived X-API-Key — either from the dashboard or via the authentication API.
3
Whitelist your IP
Register your server’s IP address under Settings → API → IP Whitelisting so FastFlowPe accepts your requests.
4
Make your first API call
Pass the
x-api-key header on every request to start accepting payments, sending payouts, or processing refunds.