RedBison for Gemini CLI
dev.redbison/mcp
500+ free tools over MCP: dev, text and security utilities, 230+ calculators. No sign-up.
client:Gemini CLI
transport:streamable-http
tools:87
Install RedBison in Gemini CLI
~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json
{
"mcpServers": {
"mcp": {
"httpUrl": "https://mcp.redbison.dev"
}
}
}Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs
What Gemini CLI can do once it is connected
- search_tools
- get_tool
- list_categories
- health
- base64_encode
- base64_decode
- url_encode
- url_decode
- json_format
- json_validate
- csv_to_json
- json_to_csv
- json_to_yaml
- yaml_to_json
- tsv_parse
- html_beautify
- xml_beautify
- yaml_beautify
- sql_beautify
- slugify
- case_convert
- escape_characters
- remove_duplicate_lines
- find_duplicate_entries