Data Processing

Defaults Object

Apply default values to an object using lodash _.defaults

text· Text resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/defaults-object' \
  -H 'Content-Type: application/json' \
  -d '{"targetObject":"{\"a\":1}","source1":"{\"a\":2,\"b\":2}","source2":"{\"b\":3}","source3":"{\"c\":4}"}'

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/defaults-object

Parameters

Name	Type	Required	Description
targetObject	textarea	Yes	Enter the target JSON object
source1	textarea	Yes	First source object
source2	textarea	No	Optional source object
source3	textarea	No	Optional source object

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-defaults-object": {
      "name": "defaults-object",
      "description": "Apply default values to an object using lodash _.defaults",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=defaults-object",
      "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": "defaults-object",
    "arguments": {
  "targetObject": "{\"a\":1}",
  "source1": "{\"a\":2,\"b\":2}",
  "source2": "{\"b\":3}",
  "source3": "{\"c\":4}"
}
  }
}

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]

Browse tools Open tool

curl -X POST 'https://api.elysiatools.com/en/api/tools/defaults-object' \ -H 'Content-Type: application/json' \ -d '{"targetObject":"{\"a\":1}","source1":"{\"a\":2,\"b\":2}","source2":"{\"b\":3}","source3":"{\"c\":4}"}'

Name

Type

Required

Description

targetObject

textarea

Yes

Enter the target JSON object

source1

textarea

Yes

First source object

source2

textarea

Optional source object

source3

textarea

Optional source object

{ "mcpServers": { "elysiatools-defaults-object": { "name": "defaults-object", "description": "Apply default values to an object using lodash _.defaults", "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=defaults-object", "command": "", "args": [], "env": {}, "isActive": true, "type": "sse" } } }

{ "jsonrpc": "2.0", "id": 2, "method": "tools/call", "params": { "name": "defaults-object", "arguments": { "targetObject": "{\"a\":1}", "source1": "{\"a\":2,\"b\":2}", "source2": "{\"b\":3}", "source3": "{\"c\":4}" } } }