✦ OPENAPI 3.1 SPECIFICATION
Developer-first API architecture.
Explore payment creation, status, webhook and reconciliation example contracts.
✓ Multi-provider control
✓ Enterprise analytics
✓ Franchise ready
API ARCHITECTURE
A deliberate developer workflow.
FinTechOS provides versioned HTTP endpoints, signed webhooks, idempotent charge generation, and standardized error envelopes.
✓ Server-side HMAC-SHA256 signature verification
✓ Unique idempotency key enforcement on all payment intents
✓ Isolated sandbox & production environments
// Server-side Payment Creation
POST /api/v1/payment-intents
Authorization: Bearer ftx_live_sec_••••••••••••••
Idempotency-Key: idem_71829a8c19
{
"merchant_code": "MER100245",
"amount_paisa": 1250000,
"currency": "INR",
"payment_method": "Card",
"customer": {
"name": "Acme Retail Ltd",
"email": "payments@acme.com"
}
}
// Response
{
"status": "success",
"intent_id": "FTX12847590",
"provider": "razor",
"amount_paisa": 1250000,
"settlement_status": "Pending"
}
VERSION 1.0
Complete Endpoint Index
Detailed request/response contracts for PaymentIntents, Transfers, Beneficiaries, Webhooks, and Ledger Journals.
THE NEXT CHAPTER OF PAYMENTS
Build a better payment business with one intelligent platform.
Explore the FinTechOS product experience and discuss approved integration possibilities.
