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html-to-markdown-using-the-mcp-server

Use when converting HTML to Markdown or extracting metadata and tables through the html-to-markdown MCP server's tools, rather than shelling out to the CLI. Covers the tool surface, the auto-installing launcher, and when MCP beats the CLI or SDK.

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xberg-io/html-to-markdown885 stars(GitHub 885 + cccskills 0)

Run score Not tested

See how to install

Files included (8)

  • SKILL.md3.0 KB
  • index.md539 B
  • references/cli-reference.md18.5 KB
  • references/configuration.md18.8 KB
  • references/other-bindings.md12.3 KB
  • references/python-api.md8.0 KB
  • references/rust-api.md10.5 KB
  • references/typescript-api.md6.8 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

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Using the MCP Server

The html-to-markdown MCP server exposes the converter's conversion and metadata-extraction capabilities as MCP tools, so an MCP-compatible client (Claude Code, Claude Desktop) can convert HTML and pull structured metadata directly, with no CLI invocation or glue code.

Standalone skill installation

Installing this skill alone does not register an MCP server or include the plugin launcher. Install the CLI (for example, brew install xberg-io/tap/html-to-markdown), then configure your MCP client with html-to-markdown mcp as its stdio command. The full product plugin supplies registration where the runtime supports MCP.

How it runs in this plugin

The plugin auto-registers the server through its bundled MCP launcher, which execs html-to-markdown mcp. On first run the launcher resolves an html-to-markdown binary: it reuses one already on PATH or cached in the plugin's bin/, then tries npx/uvx, then Homebrew, then downloads a prebuilt from the tool's latest GitHub release. Override the channel with HTML_TO_MARKDOWN_LAUNCHER=auto|npx|uvx|brew|download.

The mcp subcommand ships in a recent release of the tool. If an older html-to-markdown is already on PATH, it may not expose mcp yet — upgrade the binary (brew upgrade, re-download, or rebuild) to pick it up.

To run it manually:

html-to-markdown mcp        # for Claude Code / Claude Desktop (stdio)

The tools

  • convert_html — convert an HTML string to Markdown, Djot, or plain text. Takes html (the HTML string), an optional config object mirroring ConversionOptions, and an optional json flag. With json: true it returns the full ConversionResult (content, tables, metadata, document structure, inline images, warnings) instead of the bare converted text.
  • extract_metadata — pull structured metadata (document info, Open Graph / Twitter / JSON-LD / Microdata, headers, links, images) from an HTML string. Takes only html.

Both tools accept an HTML string — the MCP server does not fetch URLs or read files (that is CLI-only). The exact argument schemas come from the running server; ask the client to list tools to see the live surface.

When to prefer MCP over the CLI or SDK

  • Prefer MCP inside an agent session: the agent calls the converter directly as a tool, with no shell-out and no process management.
  • Prefer the CLI for one-shot conversions and shell pipelines (… | jq).
  • Prefer the SDK when embedding conversion in application code.

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