Paytm India Payment Gateway API
Paytm India payment gateway REST API for merchants selling in India to accept UPI, Paytm Wallet, credit/debit cards, net banking, BNPL, and EMI payments with QR code, subscription billing, and payment link capabilities. Enables AI agents to manage payment order creation and processing for India payment automation, handle UPI collect and intent flow for digital payment automation, access Paytm Wallet payment for digital wallet automation, retrieve subscription and recurring mandate management for subscription billing automation, manage payment link and QR code generation for no-code payment automation, handle refund processing for order management automation, access auto-debit mandate for recurring payment automation, retrieve settlement and reconciliation reporting for financial automation, manage bulk payout and vendor payment for disbursement automation, and integrate Paytm with e-commerce platforms and Indian business systems for end-to-end India payment automation.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
India payments. PCI-DSS. Merchant key/checksum. IN. Payment and transaction data.
⚡ Reliability
Best When
A merchant selling in India wanting AI agents to automate UPI payments, Paytm Wallet integration, subscription mandates, and payment link management through Paytm's dominant India payment super app ecosystem.
Avoid When
PAYTM REGULATORY ENVIRONMENT VOLATILITY: Paytm (One97 Communications) has experienced regulatory actions from RBI (Reserve Bank of India); Paytm Payments Bank was restricted by RBI in early 2024; automated Paytm integration should monitor regulatory developments and maintain payment gateway fallback; automated Paytm-only payment dependency creates single-point-of-failure risk during regulatory disruptions. UPI PAYMENT FLOW REQUIRES DEVICE-BASED AUTHENTICATION: UPI collect flow requires customer to authenticate on their UPI-linked device; automated UPI payment cannot bypass device authentication; automated UPI checkout must allow customer interaction time for UPI app authentication. MERCHANT CATEGORY CODE RESTRICTIONS: Paytm payment gateway has restrictions on certain merchant categories (gambling, cryptocurrency, adult content); automated business type registration must comply with permitted merchant categories; automated merchant onboarding for restricted categories creates account termination.
Use Cases
- • Accepting UPI payments from India digital payment agents
- • Processing Paytm Wallet transactions from wallet payment agents
- • Managing recurring subscriptions from India billing agents
- • Disbursing vendor payouts from India payment distribution agents
Not For
- • Non-India payment processing (use Stripe or Adyen for global)
- • International card acceptance without India operations (use Razorpay for international card support)
- • Large enterprise global payment orchestration (use CyberSource or Worldpay)
Interface
Authentication
Paytm uses Merchant ID and Merchant Key for authentication with checksum-based request signing. REST API with JSON. Noida, India HQ. Founded 2000 by Vijay Shekhar Sharma (One97 Communications). Listed on NSE/BSE (PAYTM). Products: Payment gateway, UPI, Paytm Wallet, QR code, subscription, bulk payouts. SDKs: Java, PHP, Python, JavaScript, .NET, Ruby. PCI DSS. Serves 350M+ users and 21M+ merchants. Competes with Razorpay, PhonePe, and BharatPe for India payments.
Pricing
Noida IN. Listed company. No monthly fee. Per-transaction fees. UPI at 0% (regulatory). Volume negotiation.
Agent Metadata
Known Gotchas
- ⚠ CHECKSUM VALIDATION REQUIRED FOR ALL REQUESTS: Paytm requires HMAC-SHA256 checksum of request parameters using Merchant Key; automated requests without valid checksum return checksum mismatch error; automated request signing must implement Paytm checksum algorithm correctly for all API calls
- ⚠ ORDER ID UNIQUENESS ACROSS ALL TRANSACTIONS: Paytm requires globally unique ORDER_ID per transaction for idempotency; automated payment creation must generate unique ORDER_ID; automated retry of failed payments must use different ORDER_ID; automated ORDER_ID reuse creates duplicate transaction rejection
- ⚠ UPI MANDATE CREATION FOR SUBSCRIPTIONS REQUIRES BANK APPROVAL: Paytm UPI AutoPay mandate creation requires bank approval per mandate; automated subscription setup must handle mandate approval pending state; automated subscription activation before mandate approval creates subscription without payment capability
- ⚠ REFUND vs CANCEL BASED ON PAYMENT STATUS: Paytm supports different reversal flows — cancel (before settlement) and refund (after settlement); automated reversal workflow must check payment settlement status before choosing reversal type; automated refund call on unsettled payment creates incorrect processing
- ⚠ WEBHOOK CHECKSUM VERIFICATION FOR SECURITY: Paytm webhooks include checksum for authenticity; automated webhook processing must verify checksum before processing payment events; unverified webhook processing creates security vulnerability to spoofed payment confirmation events
Alternatives
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Scores are editorial opinions as of 2026-03-07.