Development

HTML Attribute Extractor

Extract specified attributes (href, src, data-*, etc.) from HTML content with tag name filtering support

json· JSON resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/html-attribute-extractor' \
  -H 'Content-Type: application/json' \
  -d '{"htmlContent":"Paste your HTML content here to extract attributes...","attributes":["href","src"],"tagFilter":"a","includeDataAttributes":true,"extractUrlComponents":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/html-attribute-extractor

Parameters

Name	Type	Required	Description
htmlContent	textarea	Yes	—
attributes	select	No	—
tagFilter	select	No	Optional: Only extract from specific HTML elements
includeDataAttributes	checkbox	No	Extract data-* attributes when specified or using data-* wildcard
extractUrlComponents	checkbox	No

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-html-attribute-extractor": {
      "name": "html-attribute-extractor",
      "description": "Extract specified attributes (href, src, data-*, etc.) from HTML content with tag name filtering support",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=html-attribute-extractor",
      "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": "html-attribute-extractor",
    "arguments": {
  "htmlContent": "Paste your HTML content here to extract attributes...",
  "attributes": [
    "href",
    "src"
  ],
  "tagFilter": "a",
  "includeDataAttributes": true,
  "extractUrlComponents": 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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