# EZ QR Code Generator - Full System Documentation

> Authoritative reference for ISO/IEC 18004:2024 compliant QR code encoding, protocol syntax, and programmatic A2A / WebMCP integration.

## Core Web Utilities & RFC Schemas

### URL QR Code
- Route: https://ez-qr-generator.com/
- Protocol: RFC 3986 URI Specification
- Format: https://<domain>/<path>?<query>#<fragment>
- Target Action: Direct mobile browser execution via iOS Safari / Android Chrome.

### Wi-Fi QR Code
- Route: https://ez-qr-generator.com/wifi
- Protocol: IEEE 802.11 / ZXing Wi-Fi URI Protocol
- Format: WIFI:T:<AuthType>;S:<SSID>;P:<Password>;H:<Hidden>;;
- Escaping: Characters \, ;, ,, and : must be escaped with a backslash.
- Target Action: Operating system prompt to join wireless network without manual password typing.

### vCard QR Code
- Route: https://ez-qr-generator.com/vcard
- Protocol: IETF RFC 6350 / vCard 3.0
- Format: BEGIN:VCARD\nVERSION:3.0\nN:<Last>;<First>;;;\nFN:<Full Name>\nTEL;TYPE=CELL:<Phone>\nEMAIL:<Email>\nORG:<Org>\nEND:VCARD
- Target Action: Direct contact insertion in iOS Contacts and Google Contacts.

## Technical Matrix Specifications
- Standards: ISO/IEC 18004:2024 (QR Code 2005 / Model 2)
- Matrix Dimensions: Version 1 (21×21) to Version 40 (177×177 modules)
- Reed-Solomon Error Correction: Level L (7%), Level M (15%), Level Q (25%), Level H (30%)
- Module Geometries: Square, Circle, Hexagonal, and Diamond

## Developer & Agent APIs
- A2A Endpoint: GET /a2a/generate?url=<url>&format=png
- Model Context Protocol (MCP): https://ez-qr-generator.com/.well-known/mcp.json and /mcp
- WebMCP Integration: Standard generate_qr_code tool definition registered on DOM and MCP endpoints.