Design
CSS Fluid Typography Clamp Calculator
Generate a clamp() expression from min and max viewport and font-size bounds, with copy-ready CSS and preview data
json· JSON resultOpen tool
Quick start
Call this tool from your code in three languages.
cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/css-fluid-typography-clamp-calc' \
-H 'Content-Type: application/json' \
-d '{"minViewportPx":360,"maxViewportPx":1440,"minFontPx":16,"maxFontPx":32,"rootFontPx":16,"sampleText":"Fluid headline"}'API reference
Send a POST request with your inputs as JSON. File parameters require a separate upload first.
Endpoint
HTTP
POST https://api.elysiatools.com/en/api/tools/css-fluid-typography-clamp-calcParameters
| Name | Type | Required | Description |
|---|---|---|---|
| minViewportPx | number | Yes | — |
| maxViewportPx | number | Yes | — |
| minFontPx | number | Yes | — |
| maxFontPx | number | Yes | — |
| rootFontPx | number | No | — |
| sampleText |
MCP integration
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Server configuration
Add this block to your MCP client configuration:
mcp.json
{
"mcpServers": {
"elysiatools-css-fluid-typography-clamp-calc": {
"name": "css-fluid-typography-clamp-calc",
"description": "Generate a clamp() expression from min and max viewport and font-size bounds, with copy-ready CSS and preview data",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=css-fluid-typography-clamp-calc",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}List available tools
After connecting to the SSE endpoint, list the exposed tools:
tools/list
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Call this tool
Invoke the tool by its id, passing arguments built from its parameters:
tools/call
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "css-fluid-typography-clamp-calc",
"arguments": {
"minViewportPx": 360,
"maxViewportPx": 1440,
"minFontPx": 16,
"maxFontPx": 32,
"rootFontPx": 16,
"sampleText": "Fluid headline"
}
}
}Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).
Questions or issues? Contact [email protected]