REGON (Polish business register) for Claude Desktop
io.github.smartmobilehouse/regon-mcp
Look up Polish businesses in the GUS REGON register (BIR1) by NIP, REGON, or KRS.
client:Claude Desktop
transport:stdio
runtime:pypi
Install REGON (Polish business register) in Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json
{
"mcpServers": {
"regon-mcp": {
"command": "uvx",
"args": [
"regon-mcp"
],
"env": {
"REGON_API_KEY": "<REGON_API_KEY>",
"REGON_ENV": "<REGON_ENV>"
}
}
}
}Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs