MCP.Market

flatmark MCP server

online · 100% uptime
by flatmark.dev·dev.flatmark/markdown-converter·v1.0.0
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Document to Markdown MCP server: PDF, Word, PowerPoint, Excel and HTML, with OCR for large files.

A88/100grade A
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Safety scan
A88/100

full report

Adoption
Growing

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

flatmark tools (3, 1 write)

write = sends, deletes, buys or posts
  • convert_documentFree

    Convert a document up to 8 MB to Markdown and return it directly. Pass the file as base64 in `content_base64`, or as a download link in `file`, and its name in `filename`. The extension decides the type: .pdf, .docx, .pptx, .xlsx, .html, .htm or .txt. Returns `markdown` and `meta` (`filename`, `length` in characters). PDFs come back as plain text without headings and without OCR. For scans, tables and page numbers, use `submit_conversion_job`. Works without an API key at the anonymous rate limit. Credits: 1 per call.

  • get_conversion_jobFree

    Check a queued conversion job you submitted. Returns `job_id` and `status` (`queued`, `running`, `succeeded` or `failed`). A succeeded job includes the `markdown` when it is under 100 KB, otherwise a `result_url` to download it (also free). A failed job includes `error`, one sentence with the reason. Results are deleted 7 days after submission. An expired result is reported in `error`. Requires an API key. Credits: free. This tool is not metered.

  • submit_conversion_jobwrite actionFree

    Queue a document up to 25 MB and 200 pages for conversion with OCR and tables. Pass the file as base64 in `content_base64`, or as a download link in `file`, and its name in `filename` (.pdf, .docx, .pptx, .xlsx, .html, .htm or .txt). Returns `job_id`, `status` and `result_url`. Call `get_conversion_job` with the `job_id` until `status` is `succeeded` or `failed`. A conversion may take up to about 2 minutes. Optional `webhook_url`: a public http or https URL that receives a POST with the job's final state. The request carries `X-Appkit-Signature: sha256=<hex>`, an HMAC-SHA256 of the raw body keyed with the returned `webhook_secret` (shown only once). 3 delivery attempts. Requires an API key. The credits are refunded if the job fails. The uploaded file is deleted when the job finishes. Results are kept for 7 days after submission. Credits: 10 per call.

Public scan report

scanner v0.1.10 · 2026-10-01 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1121ms20/20
  • Tool poisoning3 tool descriptions checked15/15
  • Auth qualityAPI key sent as a header8/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityendpoint served from the registry-verified namespace domain8/10
Overall 88/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How flatmark compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
88/100
higher than 75% of 48,255 servers
Tools
3
the typical server has 7
Tools that change things
33%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
758 ms
faster than 18% of 30,031 servers

What its tools let an agent do: 2 read · 1 change

Install flatmark in Claude Code, Cursor or VS Code

claude mcp add --transport http markdown-converter https://api.flatmark.dev/mcp/
Add to Cursor

What the publisher says

From the flatmark repository's README, as published. We do not edit it. Read it on GitHub

flatmark

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.

Links

  • Website: https://flatmark.dev/go/github
  • API docs: https://api.flatmark.dev/docs · OpenAPI
  • Pricing: https://flatmark.dev/pricing
  • Convert a PDF free: https://flatmark.dev/tools/pdf-to-markdown
  • llms.txt: https://flatmark.dev/llms.txt
  • Privacy policy: https://flatmark.dev/privacy
  • Support: https://flatmark.dev/support

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/

Claude Code: /plugin marketplace add flatmark-dev/flatmark then /plugin install flatmark@flatmark (set FLATMARKAPIKEY for your key).

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.

Nothing above is checked by us. What we check is on the safety report.

flatmark: common questions

Is flatmark MCP server safe?
Yes, by our scan: it is graded A (88/100). Read the flatmark safety report
How do I install flatmark?
It runs remotely at api.flatmark.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does flatmark need an API key?
Yes. The registry entry asks for X-API-Key.
Is flatmark maintained?
The last commit was 34 days ago (2026-10-01). The latest release is v1.0.0.
Is flatmark up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of flatmark?
Servers from other publishers that do the same job: kordoc MCP server and Excel MCP Server.
How does flatmark compare with other MCP servers?
safety score 88/100 (higher than 75% of 48,255 servers); tools 3 (the typical server has 7); tools that change things 33% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to flatmark

Same job from other publishers: the closest match first, then the best rated.

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