Pay In Service Provider – Instant, Secure B2B Payment API
Simplify B2B Transactions with the Most Trusted Pay In Service Provider
Is your business ready for a smarter way to handle payments?
As a leading Pay In service provider, nxt Banking helps businesses process real-time collections and payouts with ease. Our robust API solution supports local and global payments, streamlines onboarding, and ensures 100% security with 256-bit encryption.
📩 Request a free demo now – Experience fast, secure API-based payment collection.
Why Choose nxt Banking’s Pay In API?
We make it simple for your business to accept payments from anywhere, anytime—with zero complexity.
⚡ Quick Setup & Integration
Integrate in minutes using our developer-friendly documentation and real-time sandbox.
💼 Expand Payment Options
Support for major payment services: PayPal, Venmo, CashApp, UPI, cards, and global banks.
📈 Drive More Revenue
Clients report up to 30% increase in revenue after switching to our Pay In system.
🌍 150+ Currency Support
Accept payments in local currencies with automated currency conversion.
🎯 Whether you’re a startup or enterprise, our Pay In API grows with you.
💻 Industries That Trust Our Pay In API
🛍️ E-commerce & Marketplaces
Facilitate transactions between buyers, sellers, and vendors with ease.
🚛 Logistics & Supply Chain
Streamline payouts to partners, vendors, and transporters.
🏦 Financial Services
Fintechs and banks enhance their platform with secure, automated pay-ins.
🏥 Healthcare Providers
Simplify payments for medical services, insurance claims, and diagnostics.
🏢 Real Estate Firms
Use our API for deposits, rental payments, and vendor settlements.
🧳 Travel & Hospitality
Hotels and tour operators trust us to handle multi-currency payments to providers and agents.
📞 Contact us for use cases tailored to your industry.
🔐 Secure B2B Payment Infrastructure
✅ 256-bit encryption for bank-grade protection
✅ 24/7 fraud detection for real-time risk alerts
✅ PCI DSS compliant for industry-standard data security
✅ High uptime SLA for uninterrupted business operations
Your security is our priority. Enjoy peace of mind with every transaction.
💳 One-Time Payment Code API – Easy, Flexible, and Secure
Need a secure method for one-time payments? Here’s how nxt Banking’s OTP API works:
Get API keys – Register and receive your credentials.
Integrate API – Follow our easy SDK documentation.
Generate OTP Code – Send transaction details.
Send to Customer – Email or SMS the secure one-time code.
Complete Payment – Customer finalizes the transaction securely.
Get Confirmation – Instantly receive payment status.
Supports parameters like:
amountcurrencycustomer_emaildescription
✅ Perfect for B2B billing, invoices, and time-sensitive purchases.
🌐 Outbound Link
Learn more about the importance of payment security standards from the PCI Security Standards Council.
💬 Frequently Asked Questions
How is nxt Banking’s Pay In API different from traditional gateways?
We focus on B2B use cases, offer faster integration, currency flexibility, and real-time status tracking.
Can I accept global payments?
Yes! We support over 150 currencies and automatic conversions.
Is this API safe for sensitive payment data?
Absolutely. We use bank-grade encryption and adhere to strict security compliance standards.
How long does setup take?
With our documentation, you can integrate and go live in as little as 48 hours.
🚀 Ready to Revolutionize How You Accept Payments?
nxt Banking’s Pay In API is built for businesses that demand efficiency, flexibility, and global reach. Automate your payment workflows and unlock new revenue streams—faster than ever.
📩 Schedule a free demo today – Experience secure, next-gen payment infrastructure!
About This Topic
This page is part of NxtBanking's documentation and product information for Indian fintech teams. NxtBanking provides Payout API, BBPS, AEPS, UPI Collection, KYC, DMT, Recharge, and Travel APIs — all available under one contract with a unified dashboard, sandbox environment, and dedicated technical support. Explore the API marketplace, commercial pillar pages, and developer guides linked from the main navigation. For a compliance-oriented walkthrough or architecture review, book a demo and our team will map your flows to the right rails.
Quick Answers
What makes a good fintech API integration?
A well-built fintech API integration covers: proper OAuth 2.0 authentication, idempotency keys on every write request, webhook HMAC signature verification, exponential-backoff retry logic for transient errors, and a status-query fallback for ambiguous outcomes. NxtBanking's sandbox environment lets you test all these scenarios before production.
How do I handle failed transactions in a payment API?
Categorise failures: (1) Hard failures (invalid account, KYC mismatch) — do not retry; notify user. (2) Transient failures (timeout, 5xx) — retry with idempotency key and exponential back-off. (3) Ambiguous (no response) — call the transaction status endpoint before retrying to avoid duplicate processing.
Is NxtBanking RBI-compliant for payment APIs?
Yes. NxtBanking operates through RBI-licensed partner banks for all payment services (IMPS, NEFT, RTGS, UPI) and is NPCI-certified for BBPS, AEPS, and UPI flows. All APIs follow RBI's Master Directions on payment aggregators, KYC, and PMLA obligations. We maintain audit logs, data localisation, and consent frameworks compliant with the DPDP Act 2023.
How does NxtBanking handle API downtime and failover?
NxtBanking uses a connected-banking architecture that links a single API credential to multiple RBI-licensed partner banks. When one bank's rails experience degradation or maintenance, the API automatically routes to the next available bank — with no code change required on the client side. This multi-bank failover is what delivers 99%+ transaction success rates and 99.9% API uptime SLA for enterprise clients.
What does it cost to integrate NxtBanking APIs?
NxtBanking offers pay-as-you-go pricing with no setup fees and no minimum commitment for most APIs. Typical pricing: IMPS/UPI payout ₹3–₹8 per transaction, NEFT ₹1–₹3, BBPS bill payment ₹0.50–₹3, AEPS cash withdrawal ₹2–₹5. Enterprise clients on committed volumes negotiate flat-rate pricing. Sandbox access is free and unlimited. Contact sales for a custom quote based on your expected transaction volume.
Key Terms
- API
- Application Programming Interface — a structured software interface that lets applications communicate with each other over the internet using defined endpoints, authentication, and data formats.
NxtBanking is India's AI-powered fintech API platform trusted by hundreds of fintechs, BC networks, NBFCs, and enterprise companies. Our unified API marketplace covers payout (IMPS, NEFT, RTGS, UPI), BBPS bill payment with 20,000+ billers, AEPS biometric banking, KYC and identity verification (Aadhaar, PAN, Bank, Driving Licence, Voter ID, RC), UPI collection and QR codes, domestic money transfer (DMT), mobile and DTH recharge, Micro-ATM, and travel APIs — all under one master agreement, one set of credentials, and one consolidated monthly invoice.
Every NxtBanking API is backed by a 99.9% uptime SLA, real-time webhook delivery, a full-featured sandbox environment with simulated error scenarios, comprehensive API documentation with Postman collections and code samples in multiple languages, and dedicated technical onboarding support. Production go-live for most APIs is achievable within 7–15 business days after KYC and compliance review. For enterprise clients requiring custom SLAs, dedicated infrastructure, or white-label platform builds, NxtBanking offers tailored commercial terms with no minimum volume commitment at the pilot stage.
