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The Bottom Line
- Price
- Free, no paid tier. Compare plans
Key facts
- Converts files to Markdown from HTTP, HTTPS, file, and data URIs via a single MCP tool
- Supports STDIO, Streamable HTTP, and SSE transports for flexible agent integration
- Designed for local use only; binds to localhost and includes explicit security warnings
Pros
- Simple setup with pip or Docker
- Works with popular AI agents like Claude Desktop out of the box
- Handles both local files and remote URLs seamlessly
Cons
- No built-in authentication or access control
- Only exposes a single conversion tool, limiting scope
What is MarkItDown MCP?
MarkItDown MCP is a lightweight server that implements the Model Context Protocol (MCP) to expose a single tool, convert_to_markdown, which converts files from various formats into markdown. It supports multiple transport modes—STDIO, Streamable HTTP, and SSE—making it flexible for integration with different MCP clients and agents. The tool accepts URIs of types http:, https:, file:, and data:, enabling both local file conversion and fetching remote content.
Designed for local use with trusted agents, the server binds to localhost by default and runs with the privileges of the user. It is ideal for developers who want to give their AI assistants (e.g., Claude Desktop, GitHub Copilot, or custom MCP agents) the ability to read and convert documents, code files, or web pages into markdown. The package is installable via pip and can also be run in Docker for easy environment isolation.
Preview
Key Features
- Single tool `convert_to_markdown` accepting any URI type
- Supports STDIO, Streamable HTTP, and SSE transport protocols
- Installable via `pip install markitdown-mcp`
- Docker image with local directory mounting for file access
- Configurable host and port for HTTP mode
- Compatible with MCP Inspector for debugging
- Integrates with Claude Desktop via Docker configuration
- Open-source under Microsoft's repository
Pricing Plans
Pricing checked Oct 1, 2026
| Plan | Price | Details |
|---|---|---|
| Open Source | Free |
|
Is MarkItDown MCP worth the price?
Great value
The Open Source tier at $0 is extremely generous, offering full source code and self-hosting with no usage limits.
This pricing is fair and competitive for developers who want free, private file conversion. It is best for cost-conscious teams and tinkerers.
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MarkItDown MCP FAQ
How does MarkItDown MCP handle file URIs for local files?
File URIs (e.g.,
file:///path/to/file.txt) are resolved relative to the server's file system. When running in Docker, the local directory must be mounted into the container (e.g., -v /home/user/data:/workdir) so that files under that path are accessible via the /workdir/ prefix in the URI.Can MarkItDown MCP convert content from remote URLs?
Yes, it can convert content from any
http:// or https:// URI, as well as data: URIs containing inline data. This allows agents to fetch and convert web pages or API responses directly.What transport protocols does MarkItDown MCP support?
The server supports three transport protocols: STDIO (default), Streamable HTTP, and SSE (Server-Sent Events). The HTTP/SSE mode is enabled with the
--http flag and can be bound to a specific host and port.How do I integrate MarkItDown MCP with Claude Desktop?
Claude Desktop can be configured to use the Docker image of MarkItDown MCP. Edit the
claude_desktop_config.json file to add an MCP server entry with the docker command and the markitdown-mcp:latest image. Optionally mount a local directory for file access using the -v flag.What are the security risks of using MarkItDown MCP?
The server does not include authentication and runs with the privileges of the user. In HTTP/SSE mode, it binds to localhost by default, but any process or user on the same machine can access it. The
convert_to_markdown tool can read any file the server user has access to, so it should only be used in trusted environments and never bound to non-localhost interfaces.How can I debug the MarkItDown MCP server?
You can use the MCP Inspector tool (
npx @modelcontextprotocol/inspector) to connect to the server. For STDIO, select STDIO transport and enter markitdown-mcp as the command. For Streamable HTTP or SSE, provide the server URL (e.g., http://127.0.0.1:3001/mcp or http://127.0.0.1:3001/sse). Then use the Tools tab to list tools and invoke convert_to_markdown.Can I use MarkItDown MCP with other MCP-compatible agents beyond Claude?
Yes, since it implements the standard MCP protocol, any agent or framework that supports MCP tools can connect to the server via STDIO, Streamable HTTP, or SSE. The server exposes a single tool that can be called programmatically by any compatible client.
Source: github.com