Data Processing

CSV Deduplicate Rows

Upload a CSV file or paste CSV text, remove duplicate rows using exact or fuzzy matching, and download a cleaned CSV.

file· File resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

# 1) Upload each file first → returns { filePath }
curl -X POST 'https://api.elysiatools.com/upload/csv-deduplicate-rows' \
  -F 'file=@/path/to/csvFile.ext'

# 2) Call the tool with the returned filePath values
curl -X POST 'https://api.elysiatools.com/en/api/tools/csv-deduplicate-rows' \
  -F 'csvFile=/path/to/file.ext' \
  -F 'csvText=name,email,phone
John Doe,[email protected],123-456-7890
John Doe,[email protected],123-456-7890
Jane Smith,[email protected],555-111-2222' \
  -F 'deduplicationColumns=email, phone' \
  -F 'strategy=first' \
  -F 'fuzzyMatching=false' \
  -F 'fuzzyThreshold=85' \
  -F 'caseSensitive=false' \
  -F 'trimValues=true' \
  -F 'preserveOriginalOrder=true' \
  -F 'outputFileName=crm-clean-list'

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/csv-deduplicate-rows

Parameters

Name	Type	Required	Description
csvFile	fileupload required	No	Upload a CSV file if you prefer not to paste data
csvText	textarea	No	Paste CSV content here when working from copied data
deduplicationColumns	textarea	No	—
strategy	select	No	—
fuzzyMatching	checkbox	No	—
fuzzyThreshold	range	No	—
caseSensitive	checkbox	No	—
trimValues	checkbox	No	—
preserveOriginalOrder	checkbox	No	—
outputFileName	text	No	—

File-type parameters must be uploaded first via POST /upload/csv-deduplicate-rows, then the returned filePath is passed to the corresponding file field.

Response format

File result

JSON

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "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-csv-deduplicate-rows": {
      "name": "csv-deduplicate-rows",
      "description": "Upload a CSV file or paste CSV text, remove duplicate rows using exact or fuzzy matching, and download a cleaned CSV.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=csv-deduplicate-rows",
      "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": "csv-deduplicate-rows",
    "arguments": {
  "csvFile": "https://example.com/file.ext",
  "csvText": "name,email,phone\nJohn Doe,[email protected],123-456-7890\nJohn Doe,[email protected],123-456-7890\nJane Smith,[email protected],555-111-2222",
  "deduplicationColumns": "email, phone",
  "strategy": "first",
  "fuzzyMatching": false,
  "fuzzyThreshold": 85,
  "caseSensitive": false,
  "trimValues": true,
  "preserveOriginalOrder": true,
  "outputFileName": "crm-clean-list"
}
  }
}

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).

File parameters accept a public file URL only (https://…). Local paths, data: URIs, and Base64 strings are not supported.

Questions or issues? Contact [email protected]