A
securityA
licenseA
qualityAn MCP server that generates customizable QR codes with options for size, colors, error correction, and margin settings.
Last updated -
1
6
MIT License
QR Code Generation MCP Server
A QR code generation MCP server implemented using FastMCP, supporting text-to-QR code conversion with base64 encoding output.
Features
Support for any text to QR code conversion (including Chinese characters)
Customizable colors and styles
Base64 encoding
Support for STDIO, HTTP, and SSE transport modes
Installation
uv sync
# or
pip install qrcode Pillow mcp
Usage
0. Docker Usage
Build Image
docker build -t qrcode-mcp .
Run Container
# Default SSE mode
docker run -p 8008:8008 qrcode-mcp
# HTTP mode
docker run -p 8008:8008 -e TRANSPORT_MODE=http qrcode-mcp
# STDIO mode (for testing)
docker run -e TRANSPORT_MODE=stdio qrcode-mcp
# Custom host and port
docker run -p 9000:9000 -e TRANSPORT_MODE=http -e HOST=0.0.0.0 -e PORT=9000 qrcode-mcp
Environment Variables
TRANSPORT_MODE: Transport mode (sse,http,stdio), default:sseHOST: Host address to bind, default:0.0.0.0PORT: Port to bind, default:8008
Docker Compose
version: '3.8'
services:
qrcode-mcp:
build: .
ports:
- "8008:8008"
environment:
- TRANSPORT_MODE=sse
- HOST=0.0.0.0
- PORT=8008
1. MCP Server Mode
Start Server
# STDIO mode (for Claude Desktop)
python qrcode_mcp_server.py
# HTTP mode
python qrcode_mcp_server.py --http --host 127.0.0.1 --port 8008
# SSE mode (Server-Sent Events) Deprecated
python qrcode_mcp_server.py --sse --host 127.0.0.1 --port 8008
Configure Claude Desktop
Add to ~/Library/Application Support/Claude/claude_desktop_config.json:
STDIO Mode (Local Use):
{
"mcpServers": {
"qrcode-mcp": {
"command": "python",
"args": ["/ABSOLUTE/PATH/TO/qrcode_mcp/qrcode_mcp_server.py"],
"cwd": "/ABSOLUTE/PATH/TO/qrcode_mcp"
}
}
}
HTTP Mode (Network Deployment):
{
"mcpServers": {
"qrcode-mcp": {
"transport": "http",
"url": "http://127.0.0.1:8008/mcp/"
}
}
}
SSE Mode (Server-Sent Events):
{
"mcpServers": {
"qrcode-mcp": {
"serverUrl": "http://127.0.0.1:8008/sse"
}
}
}
2. Direct Python API Usage
from qrcode_utils import text_to_qr_base64
# Basic usage
base64_result = text_to_qr_base64("Hello, World!")
# Custom styling
base64_result = text_to_qr_base64(
"Custom QR Code",
box_size=15,
fill_color="darkblue",
back_color="lightgray"
)
MCP Tools
generate_qr_code
Generate QR code and return base64 encoding.
Parameters:
text(required): Text content to convertbox_size(optional): Pixel size of each box, default 10border(optional): Number of border boxes, default 4fill_color(optional): Foreground color, default "black"back_color(optional): Background color, default "white"return_data_url(optional): Whether to return Data URL format, default false
Testing
python test_mcp_client.py
License
MIT License
hybrid server
The server is able to function both locally and remotely, depending on the configuration or use case.
Tools
mcp tool to generate qrcode
Related MCP Servers
- MIT License
- Apache 2.0
- MIT License