Health

Calcium Unit Converter (mg/dL ↔ mmol/L)

Convert total serum calcium between mg/dL and mmol/L. Factor 0.25 (atomic weight 40.078; × 4.0 inverse). Does not albumin-correct. Derived from Payne 1973, Young 1987, StatPearls, Endocrine Society. Not medical advice.

json· JSON resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'http://127.0.0.1:3003/en/api/tools/calcium-unit-converter' \
  -H 'Content-Type: application/json' \
  -d '{"value":9.5,"sourceUnit":"mgdl","targetUnit":"mmol","decimalPlaces":2}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST http://127.0.0.1:3003/en/api/tools/calcium-unit-converter

Parameters

Name	Type	Required	Description
value	number	Yes	The total calcium value to convert (not albumin-corrected).
sourceUnit	select	Yes	The unit of the input value.
targetUnit	select	Yes	The unit to convert into.
decimalPlaces	number	No	—

Response format

JSON result

JSON

{
  "key": {...},
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}

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-calcium-unit-converter": {
      "name": "calcium-unit-converter",
      "description": "Convert total serum calcium between mg/dL and mmol/L. Factor 0.25 (atomic weight 40.078; × 4.0 inverse). Does not albumin-correct. Derived from Payne 1973, Young 1987, StatPearls, Endocrine Society. Not medical advice.",
      "baseUrl": "http://127.0.0.1:3003/mcp/sse?toolId=calcium-unit-converter",
      "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": "calcium-unit-converter",
    "arguments": {
  "value": 9.5,
  "sourceUnit": "mgdl",
  "targetUnit": "mmol",
  "decimalPlaces": 2
}
  }
}

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]

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