flatmark

MCP serverFiles & storage

Lets your agent convert PDF, Word, PowerPoint, Excel and HTML files into Markdown text.

Available today. Use it from your connected AI after setup.

No other account needed.

Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.

Then ask your AI: use flatmark to convert document

About this server

Document to Markdown MCP server: PDF, Word, PowerPoint, Excel and HTML, with OCR for large files.

Install flatmark

The server’s own address, for the clients that take one directly. Or connect ahel once and every client you use reads it from one address, with the account kept on ahel rather than in each client’s config.

Claude Code
claude mcp add --transport http --scope user flatmark 'https://api.flatmark.dev/mcp/'
Run it once in your project, then open /mcp to approve any sign-in the server asks for.
Claude Desktop
https://api.flatmark.dev/mcp/
Add a custom connector in Settings, paste this address, and approve the sign-in.
Cursor
cursor://anysphere.cursor-deeplink/mcp/install?name=flatmark&config=eyJ1cmwiOiJodHRwczovL2FwaS5mbGF0bWFyay5kZXYvbWNwLyJ9
Open the link and Cursor adds the server at that address.
ChatGPT
https://api.flatmark.dev/mcp/
In Settings, enable Developer mode, create an MCP app, and paste this address. Your plan and workspace must allow custom apps.
Codex
codex mcp add flatmark --url 'https://api.flatmark.dev/mcp/'
Run it once, then sign in with codex mcp login flatmark if the server asks for an account.

From the project's README

As published by flatmark-dev/flatmark in README.md.

PDF, Word, PowerPoint and Excel to Markdown

flatmark converts PDF, Word, PowerPoint, Excel and HTML to Markdown over a REST API and an MCP server. Files up to 8 MB convert in one call with MarkItDown. Files up to 25 MB and 200 pages go through a queue that runs Docling with OCR and table detection. The queue returns Markdown and a JSON structure file, by polling or a signed webhook. The servers are in Germany. The free plan has 100 credits a month and needs no card.

MCP server

Streamable-HTTP endpoint: https://api.flatmark.dev/mcp/ — the anonymous tier works without a key; an API key raises the limits.

Claude Code:

claude mcp add --transport http flatmark https://api.flatmark.dev/mcp/

Cursor / Windsurf / Cline / Claude Desktop:

{
  "mcpServers": {
    "flatmark": {
      "url": "https://api.flatmark.dev/mcp/"
    }
  }
}

One-click installs for every client: https://flatmark.dev/connect

API

Base URL https://api.flatmark.dev/ — authenticate with an X-API-Key header; anonymous calls work at a lower rate limit.

Tools it offers (3)

What this server listed when ahel dialed its public endpoint in Sep 2026, with no key and no account of yours. The names are the server’s own.

convert_document
submit_conversion_job
get_conversion_job

Signals

Last commit: Sep 2026

Advanced

Delivery: markdown-converter MCP server → your ahel connector (mcp.ahel.ai) → your AI.
Item type: mcp-server
Key: dev-flatmark-markdown-converter
Source: github.com/flatmark-dev/flatmark
Hosted endpoint: https://api.flatmark.dev/mcp/

github.com/flatmark-dev/flatmark

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