Math & Numbers

Number Rounding Tool

Round numbers with precision control, supporting different rounding methods and batch processing

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Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/number-rounding-tool' \
  -H 'Content-Type: application/json' \
  -d '{"numbersInput":"Enter numbers separated by commas, spaces, or newlines:\n3.14159, 2.71828, 1.41421\n42.567 89.123 0.456","roundingMethod":"normal","decimalPlaces":2,"batchMode":true,"showOriginal":true,"showSteps":false}'

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/number-rounding-tool

Parameters

Name	Type	Required	Description
numbersInput	textarea	Yes	—
roundingMethod	select	Yes	—
decimalPlaces	number	No	—
batchMode	checkbox	No	—
showOriginal	checkbox	No	—
showSteps

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-number-rounding-tool": {
      "name": "number-rounding-tool",
      "description": "Round numbers with precision control, supporting different rounding methods and batch processing",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=number-rounding-tool",
      "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": "number-rounding-tool",
    "arguments": {
  "numbersInput": "Enter numbers separated by commas, spaces, or newlines:\n3.14159, 2.71828, 1.41421\n42.567 89.123 0.456",
  "roundingMethod": "normal",
  "decimalPlaces": 2,
  "batchMode": true,
  "showOriginal": true,
  "showSteps": false
}
  }
}

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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