MCP UPI Payment Integration
Initiate and verify UPI payments from an MCP server with masked logging and India-only data storage per RBI expectations.
Quick Answer / TL;DR
Wrap a licensed Indian UPI gateway (such as Razorpay or a bank's own API) behind two narrow MCP tools — initiate and verify — rather than exposing the gateway's full API surface, mask the UPI ID in every log line, and keep all payment data in Indian infrastructure.
Key Takeaways
- Expose narrow, purpose-built tools (initiate_payment, verify_payment) instead of a generic pass-through to the gateway API.
- Mask the UPI handle in logs and audit entries; never store it in full outside the gateway itself.
- Route through an Indian-licensed gateway — this is a hard requirement, not an optimization.
Initiating a payment
Validate the amount and UPI handle format before calling the gateway, generate a traceable transaction ID, and log the attempt with the UPI handle masked rather than in full.
const PaymentSchema = z.object({
amount: z.number().positive(),
upi_id: z.string().regex(/^[a-zA-Z0-9.\-_]+@[a-zA-Z]+$/),
purpose: z.string().max(100),
});
function maskUpiId(upiId: string): string {
const [user, domain] = upiId.split("@");
return `${user.slice(0, 2)}***@${domain}`;
}Verifying a payment
Poll or receive a callback for the transaction status, and log the verification event the same way as the initiation, recording only the fields actually needed (status, amount, timestamp).
MCP UPI Payment Integration FAQs
Direct answers for developers, operators, and Indian teams evaluating MCP.