QR Code Generator MCP Server

QR Code Generator

Create QR code images on-platform from any string input — URLs, text, contact info, WiFi credentials, or raw data. The generated image is returned directly as a PNG (raster) or SVG (vector) that the AI can display or the user can download.

Capabilities

• Encode anything: Any UTF-8 string up to ~4,296 bytes — URLs, plain text, vCard data, WiFi network strings (WIFI:T:WPA;S:MyNetwork;P:MyPass;;), or arbitrary payloads.
• Error correction levels: Four levels (L/M/Q/H) trading density for resilience. H recovers from ~30% damage — useful when a logo will overlay the center.
• Custom colors: Set dark and light module colors via hex codes for branded QR codes.
• Scalable output: PNG with configurable pixel scale (1–50× per module) or lossless SVG for print.
• Quiet zone control: Adjustable border width in modules (QR spec recommends at least 4).

Gotchas

• Data capacity: Maximum ~4,296 bytes at error level L; higher error correction reduces capacity. Very long URLs or large text blocks may exceed the limit.
• Color contrast: QR scanners need strong contrast between dark and light modules. Low-contrast color choices may produce unreadable codes.
• SVG output: Returned as text (SVG XML), not as an image content block, since SVG is a text format.