# Css Filter Generator — MCP tool `findutils:css_filter_generator`

Generate a CSS filter declaration from brightness, contrast, saturate, grayscale, sepia, invert, opacity, blur and hue-rotate, or from a named preset (vintage, cool, warm, dramatic, grayscale, faded, sharpen). Only functions that differ from their no-op value are emitted, so the output stays short. Returns the full "filter: ...;" rule, the bare value, and which functions were applied. Order matters in CSS filters and is preserved as listed.

- Category: generators
- 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-filter-generator/execute (no API keys, 60 req/min per IP)
- Reference page: https://findutils.com/mcp/css-filter-generator/
- Same tool on the other surface: https://findutils.com/api/css-filter-generator/

## 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_filter_generator",
      "arguments": {
        "preset": "vintage"
      }
    }
  }'
```

## Input schema

| Argument | Type | Required | Description |
|---|---|---|---|
| `preset` | string (none \| vintage \| cool \| warm \| dramatic \| grayscale \| faded \| sharpen) | no | Start from a preset. Any other argument overrides the preset value. |
| `brightness` | number | no | Brightness in percent (0 to 300). 100 is unchanged. |
| `contrast` | number | no | Contrast in percent (0 to 300). 100 is unchanged. |
| `saturate` | number | no | Saturation in percent (0 to 300). 100 is unchanged. |
| `grayscale` | number | no | Grayscale in percent (0 to 100). 0 is unchanged. |
| `sepia` | number | no | Sepia in percent (0 to 100). 0 is unchanged. |
| `invert` | number | no | Inversion in percent (0 to 100). 0 is unchanged. |
| `opacity` | number | no | Opacity in percent (0 to 100). 100 is unchanged. |
| `blur` | number | no | Blur radius in px (0 to 50). 0 is unchanged. |
| `hue_rotate` | number | no | Hue rotation in degrees (-360 to 360). 0 is unchanged. |

Example arguments (verified):

```json
{
  "preset": "vintage"
}
```

## Also a REST endpoint

```bash
curl -X POST https://api.findutils.com/api/tools/css-filter-generator/execute \
  -H "Content-Type: application/json" \
  -d '{
    "preset": "vintage"
  }'

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

Full REST reference: https://findutils.com/api/css-filter-generator/ · 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