# Css Minifier — MCP tool `findutils:css_minifier`

Minify CSS (strip comments and whitespace) or beautify compressed CSS, and return the output with byte sizes and the percentage saved. Minify removes comments, whitespace around punctuation, and the last semicolon in each block. Beautify puts one declaration per line with the chosen indentation.

- Category: developer
- MCP server: https://mcp.findutils.com/ (Streamable HTTP, no API keys, 120 req/min per IP)
- REST endpoint: POST https://api.findutils.com/api/tools/css-minifier/execute (no API keys, 60 req/min per IP)
- Reference page: https://findutils.com/mcp/css-minifier/
- Same tool on the other surface: https://findutils.com/api/css-minifier/

## Connect

```bash
claude mcp add findutils --transport http https://mcp.findutils.com/
```

Claude Desktop (`claude_desktop_config.json`):

```json
{
  "mcpServers": {
    "findutils": {
      "url": "https://mcp.findutils.com/"
    }
  }
}
```

## Call the tool (verified example)

```bash
curl -X POST https://mcp.findutils.com/ \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "css_minifier",
      "arguments": {
        "css": "body {\n  color: red;\n  margin: 0;\n}"
      }
    }
  }'
```

## Input schema

| Argument | Type | Required | Description |
|---|---|---|---|
| `css` | string | yes | The CSS source to minify or beautify. |
| `mode` | string (minify \| beautify) | no | minify = compress, beautify = expand for readability. Default: minify. Default: `"minify"`. |
| `indent` | integer | no | Spaces per indentation level in beautify mode (1-8). Default: 2. Default: `2`. |

Example arguments (verified):

```json
{
  "css": "body {\n  color: red;\n  margin: 0;\n}"
}
```

## Also a REST endpoint

```bash
curl -X POST https://api.findutils.com/api/tools/css-minifier/execute \
  -H "Content-Type: application/json" \
  -d '{
    "css": "body {\n  color: red;\n  margin: 0;\n}"
  }'

# Parameter schema
curl https://api.findutils.com/api/tools/css-minifier
```

Full REST reference: https://findutils.com/api/css-minifier/ · OpenAPI 3.1 spec: https://findutils.com/api/openapi.json

---
Full catalog: POST https://mcp.findutils.com/ with method `tools/list` · https://findutils.com/mcp/ · https://findutils.com/llms.txt