Field-Level Data Encryptor

Encrypt specific fields in CSV data using various encryption methods to protect sensitive information

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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/field-encryptor' \
  -H 'Content-Type: application/json' \
  -d '{"csvData":"Enter your CSV data...\n\nExample:\nName,Email,Phone,SSN,Salary\nJohn Doe,[email protected],555-0123,123-45-6789,50000\nJane Smith,[email protected],555-0456,987-65-4321,60000\nBob Wilson,[email protected],555-0789,456-78-9012,45000","encryptionMethod":"base64","selectedFields":"Comma-separated field names (e.g., Email,Phone,SSN). Leave empty to encrypt all fields.","encryptionKey":"Enter encryption key (required for AES encryption)","caesarShift":"3","preserveStructure":true,"exportFormat":"csv","encryptedOnly":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/field-encryptor

Parameters

Name	Type	Required	Description
csvData	textarea	Yes	—
encryptionMethod	select	Yes	—
selectedFields	text	No	Specify which CSV columns to encrypt. If empty, all fields will be encrypted by default.
encryptionKey	text	No	Only required for AES encryption method. Use a strong, secure key.
caesarShift	number	No	Number of positions to shift for Caesar cipher (1-25)
preserveStructure	checkbox	No	Keep CSV headers and maintain original data structure
exportFormat	select	Yes	—
encryptedOnly	checkbox	No	Skip detailed analysis and only output the encrypted data

Response format

Text result

JSON

{
  "result": "Processed text content",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}

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-field-encryptor": {
      "name": "field-encryptor",
      "description": "Encrypt specific fields in CSV data using various encryption methods to protect sensitive information",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=field-encryptor",
      "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": "field-encryptor",
    "arguments": {
  "csvData": "Enter your CSV data...\n\nExample:\nName,Email,Phone,SSN,Salary\nJohn Doe,[email protected],555-0123,123-45-6789,50000\nJane Smith,[email protected],555-0456,987-65-4321,60000\nBob Wilson,[email protected],555-0789,456-78-9012,45000",
  "encryptionMethod": "base64",
  "selectedFields": "Comma-separated field names (e.g., Email,Phone,SSN). Leave empty to encrypt all fields.",
  "encryptionKey": "Enter encryption key (required for AES encryption)",
  "caesarShift": "3",
  "preserveStructure": true,
  "exportFormat": "csv",
  "encryptedOnly": 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]