How to Use the HTML DOM Query Engine MCP in Claude Code

Q: How do I add HTML DOM Query Engine to Claude Code?

Run claude mcp add --transport http html-dom-query-engine-mcp -- in your terminal. Make sure all flags come before the server name, then verify the connection with claude mcp list.

Q: Why should I use HTML DOM Query Engine instead of jq for HTML in Claude Code?

While jq is great for JSON, it cannot parse HTML. The querydom tool specifically parses raw HTML strings using standard CSS selectors, allowing Claude Code to extract web data before converting it to JSON.

Query raw HTML strings directly from your terminal using Claude Code and CSS selectors.

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Connect HTML DOM Query Engine MCP to Claude Code

Create your Vinkius account to connect HTML DOM Query Engine to Claude Code and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup HTML DOM Query Engine with Claude Code

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Pipe raw HTML directly into this terminal-based MCP Server

The `query_dom` tool allows backend developers and SREs to parse raw HTML strings directly from the command line using this MCP Server. Your terminal agent takes curled web pages, pipes them into the tool, and extracts specific CSS selectors without leaving the shell. This setup fits perfectly into command-line workflows. You can extract build statuses, download links, or metadata from raw HTML pages and pipe the clean output directly into other CLI utilities.

Fast DOM parsing for shell scripts

The `query_dom` tool processes massive HTML files in milliseconds, making it ideal for cron jobs and automated shell scripts. Your CLI agent runs queries against local HTML dumps without spinning up heavy headless browsers or node environments. You avoid the complexity of writing custom awk or sed scripts to parse HTML. The tool handles malformed tags deterministically, giving your scripts reliable data every run.

Automate CI/CD validation tasks

The `query_dom` tool lets your terminal agent validate built HTML pages before deployment. Claude Code can scan your build directory, parse the generated markup, and check for missing SEO tags or broken image sources. Running these checks inside your CI/CD pipeline keeps your deployments clean. The lightweight engine ensures your build steps remain fast and memory-efficient.

Setup guide

Set up HTML DOM Query Engine MCP in Claude Code

Prerequisites

Claude Code CLI installed (npm install -g @anthropic-ai/claude-code)
Active Vinkius subscription with a valid endpoint token

1

Run the add command

Open your terminal and run the command shown on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com. Use --scope user to make it available across all projects.
2

Verify the connection

Start a Claude Code session and type /mcp to list connected servers. You should see html-dom-query-engine-mcp with a green status indicator.
3

Start using tools

Ask Claude Code something like "Check my latest HTML DOM Query Engine transactions." It will automatically discover and invoke the available HTML DOM Query Engine tools.

Terminal

claude mcp add --transport http html-dom-query-engine-mcp https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

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Prerequisites

Claude Code CLI installed
Active Vinkius subscription with a valid endpoint token

1

Open the config file

Create or edit .mcp.json in your project root for project-level scope, or ~/.claude.json for user-level scope.
2

Add the HTML DOM Query Engine MCP

Paste the JSON snippet shown on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Code

Start a new Claude Code session. Type /mcp to confirm the server is connected. The tools will be automatically available in your conversation.

.mcp.json

{
  "mcpServers": {
    "html-dom-query-engine-mcp": {
      "type": "url",
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

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Common questions about HTML DOM Query Engine MCP in Claude Code

Run `claude mcp add --transport http html-dom-query-engine-mcp -- ` in your terminal. Make sure all flags come before the server name, then verify the connection with `claude mcp list`.

Yes. Claude Code can execute shell commands to curl a website, then pass that raw HTML string directly to the `query_dom` tool to extract specific CSS selectors.

While jq is great for JSON, it cannot parse HTML. The `query_dom` tool specifically parses raw HTML strings using standard CSS selectors, allowing Claude Code to extract web data before converting it to JSON.

Yes. The server is hosted on the Vinkius platform, allowing Claude Code to access the `query_dom` tool in headless environments, GitHub Actions, or Docker containers via a single HTTP transport link.

Every raw HTML string sent by Claude Code is processed inside this MCP Server sandbox managed by Vinkius. No HTML data is written to disk or stored, ensuring complete data privacy for your internal server logs and markups.

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