# QR Code SVG Generator MCP > Generate QR Code SVG Generator handles QR code creation without sending sensitive data over a network. It generates vector SVG markup locally inside the V8 engine. Use it when you need to embed codes for tickets, payments, or credentials and cannot risk exposing keys (like Pix payment identifiers or JWT tokens) to public API servers. ## Overview - **Category:** productivity - **Price:** Free - **Tags:** qr-code, vector-graphics, data-privacy, local-processing, svg-generation ## Description You're dealing with sensitive data—think payment identifiers, private network passwords, or unique event ticket keys. You know that sending this kind of payload out to some public API just ain't cool; it's a massive security hole and a privacy nightmare. Your AI client needs QR codes, but you can't risk letting your key leak on the wire. That's where **`generate_qr`** comes in. This tool doesn't send anything over the network. It handles the whole QR code math right here, locally within the V8 engine. You get a vector SVG string back—purely local generation. That means your sensitive keys never leave your environment. The function takes a simple `content` string and spits out complete SVG markup. This is crucial because you're not just getting an image; you're getting embeddable, high-quality vector code ready for HTML or PDFs. You can use this mechanism to generate payment barcodes by passing any payment payload, like a PIX key, and it returns the corresponding QR code SVG markup. Similarly, if you need to encode event tickets, just input an event URL or ticket identifier, and the tool gives you a robust vector QR Code designed for printing or web display. You can also use **`generate_qr`** to embed credentials directly from raw text. You don't gotta worry about sending secure WiFi passwords anywhere; pass that raw text in, and it generates a code fully encapsulated in SVG format. It’s all about keeping the data local. The process is straightforward: you feed the tool the content string, and it returns the full SVG markup. This capability makes sure your AI agent can generate codes for tickets, payments, or credentials without ever exposing private keys to any public API server. The output is a pure vector string that'll work right into your front-end components. You keep everything contained. When you use **`generate_qr`**, the tool takes a content string and returns a complete SVG markup. It generates these vector QR Codes offline, meaning no sensitive data ever leaks to public APIs. This means you can build applications that require scannable codes—be it for payments, access control, or digital credentials—without compromising user privacy or exposing proprietary keys. You just give it the content, and you get a clean SVG string back. ## Tools ### generate_qr Takes a content string and returns a complete SVG markup. It generates vector QR Codes offline, preventing sensitive data leakage to public APIs. ## Prompt Examples **Prompt:** ``` Generate a QR Code for this event ticket URL: `https://vinkius.com/ticket/123` ``` **Response:** ``` Generated QR Code SVG: Output returned successfully. ``` **Prompt:** ``` Create a QR Code for this PIX payment payload so I can embed it in the invoice. ``` **Response:** ``` Generated QR Code SVG: Output returned successfully. ``` **Prompt:** ``` I need an SVG QR code containing this secure WiFi password configuration. ``` **Response:** ``` Generated QR Code SVG: Output returned successfully. ``` ## Capabilities ### Generate Payment Barcodes Pass any payment payload (like a PIX key) and get the corresponding QR code SVG markup. ### Encode Event Tickets Input an event URL or ticket identifier to receive a vector QR Code designed for printing or web display. ### Embed Credentials Generate codes from raw text, such as secure WiFi passwords, ensuring the data is encapsulated in SVG format. ## Use Cases ### Generating Invoice Barcodes A developer needs an agent to create a PIX invoice and embed the required QR code. Instead of sending the sensitive payment key to `api.qrserver.com`, they call `generate_qr` with the payload string. The tool returns the SVG, solving the security breach before the PDF is finalized. ### Creating Event Check-in Passes Your agent builds a batch of event tickets for 500 attendees. To keep all ticket URLs and identifiers private, the system calls `generate_qr` in a loop for every ticket ID. This ensures no attendee data is ever exposed to an external API. ### Secure Onsite Networking Setup An agent needs to generate temporary WiFi credentials for a conference venue. The system calls `generate_qr`, passing the secure network password configuration as raw text. This creates a vector SVG that can be printed on sign-in sheets without leaking the key. ## Benefits - Zero Data Leakage: Because the `generate_qr` tool runs math locally in V8, your sensitive Pix keys or JWT tokens never leave your environment. This is non-negotiable for compliance. - Vector Scalability: The output is a pure SVG string. It embeds perfectly into HTML emails, PDF generators, and React components—you don't get pixelated garbage. - Reliable Offline Use: You don't need internet access to generate codes. This guarantees the workflow completes even if an external API endpoint goes down or throttles your request. - Direct Integration: The tool returns ready-to-embed SVG markup. There’s no complex post-processing needed; you get the asset immediately for use in documentation or UI rendering. - Handles Complex Payloads: Use `generate_qr` to encode everything from simple URLs to highly structured payment payloads, maintaining data integrity across different formats. ## How It Works The bottom line is: it gives you secure, scalable QR Code SVG strings without requiring any external API calls or data transmission. 1. Your AI client calls `generate_qr` and passes it a specific content string (e.g., a URL or payment payload). 2. The MCP Server processes the data mathematically using an internal V8 engine instance, ensuring the operation stays entirely offline. 3. You get back a clean SVG markup string that you can drop straight into your application code. ## Frequently Asked Questions **Does generate_qr support PIX payment payloads?** Yes, `generate_qr` handles complex financial data like PIX payments. You pass the payload string to the tool, and it generates a secure SVG barcode suitable for invoices. **Is the QR Code generated by generate_qr always an SVG?** Yes, `generate_qr` output is always in SVG markup. This format guarantees vector scalability, meaning the code looks sharp whether you print it or embed it in a web component. **Can I use generate_qr for WiFi passwords?** Absolutely. You can pass any raw text—like a secure network password configuration—to `generate_qr`. It encodes the text into an SVG QR Code without leaking the credential over the wire. **Does generate_qr require internet access?** No. Because it runs the mathematical encoding process locally inside V8, you don't need any network connection or external API keys to run it successfully. **Does generate_qr leak sensitive data or keys?** No, it doesn't. The tool generates the QR code mathematically inside the V8 engine without making any network requests. This keeps your payment keys and JWT tokens completely private. **How can I embed the SVG generated by generate_qr?** You receive a complete SVG markup string ready for use. You can safely embed this output directly into HTML emails, PDFs, or React components. **What is the scaling quality of QR codes from generate_qr?** The output is vector-based SVG. This means you can scale the code infinitely without losing resolution or becoming pixelated. It works for both small digital assets and large print jobs. **What kind of data input does generate_qr require?** It only requires a single content string as input. You pass the payload—like a URL, ticket ID, or payment key—and the tool converts that text into the QR code markup. **Does it return a PNG image?** No, it returns an SVG string. SVGs are infinitely scalable and consume far fewer tokens than base64 PNGs. **Can I use this for PIX payments?** Yes. Pass the raw EMVCo payload (Pix Copy-and-Paste string) and it will generate the exact QR code for the bank app. **Is my data sent to any third party?** Absolutely not. The QR generation is 100% local and deterministic.