Categories › Business & Finance › Payments & billing
UPI payment links and QR codes, UPI error help, and GST, MSMED and MDR calculators for India.
Remote server: your requests and data go to www.proupiqr.in. Claude Code: claude mcp add --transport http pro-upi-qr https://www.proupiqr.in/mcp/ · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
create_upi_payment_link — Create a UPI payment link (upi://pay) for an Indian UPI ID. On a phone it opens PhonePe, Google Pay, Paytm, BHIM or any UPI app with the paygenerate_upi_qr_code — Generate a UPI payment QR code (PNG image) for an Indian UPI ID that PhonePe, Google Pay, Paytm, BHIM and every UPI app can scan, optionallyread_upi_link — Read a UPI payment link (the upi://pay… text inside a payment QR code) and check it: who gets paid, the amount, the note and any merchant fiexplain_upi_error — Explain a failed UPI payment from its error code or message (e.g. U30, ZM, XH, Z9, U16, or "debit has been failed"): what it means, which sicalculate_gst — Calculate Indian GST on an amount, exact to the paisa: add GST to a price before tax, or take it out of a GST-inclusive price, split into CGcalculate_msmed_interest — Calculate the interest a buyer owes a micro or small enterprise (Udyam-registered supplier) for paying late, under Section 16 of India's MSMcalculate_upi_mdr — Work out the UPI merchant discount rate (MDR) that NPCI has announced but not yet started: 0.4% on person-to-merchant UPI payments above ₹2,amount_in_words — Write a rupee amount in words the Indian way (lakh and crore), as on invoices, receipts and cheques. For example 125050.50 → "One Lakh Twentfind_merchant_tools — Find the free Pro UPI QR tool for a task: invoices, receipts, rent receipts, salary slips, quotations, GST and MSME tools, UPI QR posters anNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.