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Programmatic Banking & FinTech APIs

Payment API Integration: UPI, Payouts & Recurring Auto-Debit

Complex business platforms require programmatic banking and payment APIs that go far beyond basic checkout buttons. We engineer custom API integrations for instant vendor payouts, automated customer disbursements, UPI collection APIs, and recurring subscription mandates.

  • Signature-verified webhooks
  • No card data on your servers
  • Reconciliation built in

What this covers

  • Payment API Integration

Typical timeline

Custom payment and payout API integrations completed in 2–4 weeks.

Who it is for

Who our Payment API Integration service is for

We integrate directly with connected banking APIs (ICICI, Yes Bank, Axis) and FinTech payout engines. Whether you need to disburse vendor commissions in real time, collect recurring utility bills via BBPS, or verify bank accounts via penny-drop, we build secure, audited financial API pipelines.

Discuss your requirement
  • 01

    Marketplaces and aggregator platforms disbursing instant payouts to sellers or drivers

  • 02

    Lending and NBFC platforms executing instant loan disbursals and auto-debit collections

  • 03

    Gaming, reward, and affiliate platforms processing instant user wallet withdrawals

  • 04

    Subscription platforms managing recurring UPI Autopay and e-Mandate debit schedules

Capabilities

What is included in Payment API Integration

Instant Payout & Disbursement APIs

Programmatic IMPS, NEFT, RTGS, and UPI payouts from corporate virtual accounts with automated balance checks.

Dynamic UPI QR Code Generation

Generate dynamic UPI QR codes with exact order amounts and auto-expiry for POS screens and payment links.

UPI Autopay & Recurring e-Mandate

Implement NPCI-compliant recurring debit mandates for monthly subscriptions, SIPs, and membership dues.

Bank Account Verification (Penny Drop)

Verify beneficiary bank account numbers and IFSC codes in real time before processing payout transfers.

Virtual Accounts & Smart Collections

Generate unique virtual accounts (VAN / VPA) per customer for automated NEFT/RTGS payment reconciliation.

Two-Factor API Signing & IP Whitelisting

Enforce asymmetric RSA/AES payload encryption, mutual TLS (mTLS), and strict IP whitelisting for banking calls.

How we work

A clear, step-by-step delivery process

You always know what happens next, who is responsible and what you will receive at each stage.

Typical timeline

Custom payment and payout API integrations completed in 2–4 weeks.

  1. 01

    Financial Architecture & Banking Partner Review

    We review your payout volume, regulatory classification, Escrow or nodal account requirements, and API provider options.

  2. 02

    Cryptographic Key Generation & Encryption

    We configure public-private keypairs, digital certificates, and payload encryption per banking guidelines.

  3. 03

    Idempotent Payout Queue Architecture

    We build asynchronous background queues that handle bulk disbursements with strict concurrency guards.

  4. 04

    Simulated Failure & Reconciliation Testing

    We test edge cases including bank timeouts, reversed IMPS transfers, invalid accounts, and balance exhaustion.

  5. 05

    Live Corporate Banking Deployment

    We go live with dual-authorization approval workflows and automated daily settlement reconciliation.

Deliverables

What you receive

  • Custom payment API integration service
  • Asynchronous payout dispatch engine with failure retries
  • Automated beneficiary bank account validation module
  • Virtual account collection and auto-reconciliation engine
  • Financial audit logs with immutable timestamping
  • Technical architecture manual and compliance sign-off

Banking & Payout Protocols

Tools we work with

ICICI Corporate APIYes Bank API BankingCashfree Payouts APIRazorpayX APINPCI UPI 2.0 SpecsRSA-2048 / AES-256Redis Queues

We recommend tools based on your scale, budget and existing systems, not on what is fashionable. Every choice is explained in the proposal.

Engagement models

Choose how we work together

Fixed-scope project

A discovery workshop produces a written scope, architecture and milestone plan with a fixed price before any build commitment.

Most chosen

Dedicated product team

A cross-functional squad (PM, engineers, QA, DevOps) working in two-week sprints on your roadmap, billed monthly.

Support & evolution retainer

SLA-backed maintenance, security patching and a monthly allocation of enhancement hours after go-live.

How pricing works: Integrations are quoted per gateway and flow (checkout, subscriptions, refunds, payouts, split settlements). Gateway transaction fees are agreed directly between you and the provider.

Get a quote

FAQs

Payment API Integration: frequently asked questions

How do instant payout APIs work for vendor or affiliate commissions?

You maintain a funded business account with a payout partner (such as Cashfree Payouts, RazorpayX, or a connected bank). When a payout trigger occurs in your software, our backend signs the request and calls the payout API, transferring funds via 24/7 IMPS or UPI within 2 seconds.

How are payout APIs protected against accidental double payments?

Every transfer request includes a unique transfer ID generated before the call. The banking API strictly rejects any duplicate transfer ID. Furthermore, our database uses transactional locks so a payout job cannot be dispatched twice even under high server load.

Can we set up recurring subscription debits via UPI in India?

Yes. We integrate UPI Autopay where the customer authorizes a mandate on their UPI app (PhonePe, GPay, Paytm) for recurring debits up to ₹15,000 without requiring an OTP on subsequent cycles.

Can you integrate connected banking directly with our ICICI or Yes Bank current account?

Yes. We integrate directly with ICICI Developer Portal and Yes Bank API Banking using mutual TLS, RSA signature verification, and static IP whitelisting for direct corporate banking automation.

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Request a proposal for Payment API Integration

Share a few details. A senior specialist reviews them and schedules a call to discuss scope, timeline and cost, with no obligation.

  • Written scope and fixed quote
  • NDA signed before you share sensitive details
  • Direct access to the people doing the work

By submitting you agree to be contacted about this enquiry. We never share your details.

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