UPI payment links, QR codes, GST and MSMED calculators for Indian businesses
Generate UPI payment links and QR codes for Indian UPI IDs, calculate GST and MSMED late-payment interest, understand UPI payment errors, and compute merchant discount rates. All tools run locally with no data storage.
Try asking Muse: "Generate a UPI QR code for my shop so customers can pay me, and calculate the GST on an invoice amount."
Source: Found in the official MCP Registry (in.proupiqr/upi-tools) · First listed October 30, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 1 h ago.
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://www.proupiqr.in/mcp/Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Pro UPI QR is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://www.proupiqr.in/mcp/Response time at the last check: 812ms. Worked in n/a of checks over 30 days.
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
create_upi_payment_linkCreate 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 payee, amount and note filled in. Use it to collect a payment, split a bill or put on an invoice. Returns the link and a proupiqr.in page with generate_upi_qr_codeGenerate a UPI payment QR code (PNG image) for an Indian UPI ID that PhonePe, Google Pay, Paytm, BHIM and every UPI app can scan, optionally with a fixed amount and note. Also returns the upi:// link and a proupiqr.in page to download a printable counter poster or stickers. Nothiread_upi_linkRead 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 fields, with warnings about anything malformed or risky, such as an AutoPay mandate posing as a payment. Use it before paying from a QR someonexplain_upi_errorExplain 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 side caused it, whether money was debited and when it comes back, and what the payer or merchant should do next. Covers 42 common NPCI and bancalculate_gstCalculate 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 CGST + SGST (sale within a state) or IGST (between states).calculate_msmed_interestCalculate the interest a buyer owes a micro or small enterprise (Udyam-registered supplier) for paying late, under Section 16 of India's MSMED Act: three times the RBI Bank Rate (17.25% a year as of 7 Oct 2026), compounded monthly, from the day after the payment deadline (the agrcalculate_upi_mdrWork out the UPI merchant discount rate (MDR) on a payment under the rules from 15 October 2026: 0.4% on person-to-merchant UPI payments above ₹2,000 (capped at ₹300), a flat ₹5 for essential-sector merchants and 0.02% for capital markets. Person-to-person payments, payments of ₹amount_in_wordsWrite a rupee amount in words the Indian way (lakh and crore), as on invoices, receipts and cheques. For example 125050.50 → "One Lakh Twenty Five Thousand Fifty Rupees and Fifty Paise Only".find_merchant_toolsFind the free Pro UPI QR tool for a task: invoices, receipts, rent receipts, salary slips, quotations, GST and MSME tools, UPI QR posters and stickers, calculators and guides. Returns matching tools with links; they run in the browser with no signup.https://www.proupiqr.in/mcp/Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Pro UPI QR to help me. It is a free service with an MCP server at https://www.proupiqr.in/mcp/. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
At the last check (October 30, 2026, 13:26 UTC) the endpoint was working, answering in 812ms. It is checked every 15 minutes.
It was screened on October 30, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
It exposes 9 tools, including create_upi_payment_link, generate_upi_qr_code, read_upi_link, explain_upi_error. For example, you could ask Muse: "Generate a UPI QR code for my shop so customers can pay me, and calculate the GST on an invoice amount."
This listing was added from public sources (Found in the official MCP Registry (in.proupiqr/upi-tools)). If you build Pro UPI QR, claim it to correct the details and get your badge.
Paste this on your site or README. It always shows the latest check.
<a href="https://musedirectory.ai/connector/pro-upi-qr"><img src="https://musedirectory.ai/badge/pro-upi-qr.svg" alt="Pro UPI QR on musedirectory.ai" width="236" height="40"></a>