MinerU Ecosystem vs Polytranslator
A side-by-side look at the MinerU Ecosystem and Polytranslator MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose MinerU Ecosystem for search & data extraction work as a local process; choose Polytranslator for translation services over a hosted endpoint. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose MinerU Ecosystem when
- You need dedicated capabilities in the Search & Data Extraction domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
MINERUAPITOKEN. - You want tools like
parse_documents, get_ocr_languages.
Choose Polytranslator when
- You need dedicated capabilities in the Translation Services domain.
- You prefer a remote HTTP/SSE transport.
- You have the keys it needs:
POLYTRANSLATOR_API_KEY.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Search & Data Extraction | Translation Services |
| Quality signal | 64/100 · Good | 40/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | API key required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | MINERUAPITOKEN | POLYTRANSLATOR_API_KEY |
| Verified owner | Community listing | Community listing |
| GitHub stars | 226 | 0 |
| Directory activity | 9 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 2 | Not listed |
| Full listing | View MinerU Ecosystem | View Polytranslator |
Tools & capabilities
MinerU Ecosystem tools 2
parse_documentsConvert PDFs, Word (DOCX), PowerPoint (PPTX), Excel (XLSX in Flash mode), images, and public document URLs—or HTML page URLs—into Markdown using the MinerU cloud API. **World effects:** Reads local paths you pass; fetches http(s) URLs. Uploads file or URL content to mineru.net for processing (do not use for data you must not send off-device). Does not modify or delete originals. May write Markdown (and sometimes images) under `output_dir` or the server default when results are saved or inline content is too large. **Auth & limits:** Without `MINERU_API_TOKEN`, uses free Flash mode: Markdown-only output, service limits apply. With `MINERU_API_TOKEN`, higher per-file page limits and optional extra output formats per MinerU plans; token is read from env (or HTTP Bearer when using streamable HTTP). **Use this when:** The user needs full-document extraction, tables/formulas as HTML/Latexa, batch conversion, or per-file PDF page ranges. **Do not use** for listing supported OCR script codes—call `get_ocr_languages` instead. **Not a substitute** for offline-only or strictly local parsers. **Parameters (intent):** `file_sources` is a list of path/URL strings or `{"source": "…", "pages": "1-5"}` objects (PDF page ranges; Flash allows simple `N` or `N-M`). `enable_ocr` defaults to true. `language` is an OCR/script code (default `ch`); see `get_ocr_languages` for valid values. Set `model` to `"html"` only when every source is a web page URL; otherwise omit. `output_dir` overrides where large or batch results are written.get_ocr_languagesReturn the supported MinerU OCR / script language codes (e.g. ch, en, japan, latin). Read-only; no uploads. Use before setting `language` on `parse_documents` for scanned or multilingual documents. Do not use for converting files—call `parse_documents` instead.
Polytranslator tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
MinerU Ecosystem
{
"mcpServers": {
"opendatalab-mineru-ecosystem": {
"command": "uvx",
"args": [
"mineru-open-mcp"
],
"env": {
"MINERUAPITOKEN": "YOUR_MINERUAPITOKEN_HERE"
}
}
}
}
Polytranslator
{
"mcpServers": {
"polytranslator": {
"url": "https://www.polytranslator.com/api/mcp"
}
}
}
Frequently asked questions
MinerU Ecosystem is categorized under Search & Data Extraction and uses a local stdio subprocess. Polytranslator belongs to Translation Services and uses a remote HTTP/SSE transport. Pick MinerU Ecosystem for search & data extraction work and Polytranslator for translation services.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
MinerU Ecosystem is listed as free. Auth: api key required. Polytranslator has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add opendatalab-mineru-ecosystem and polytranslator as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, MinerU Ecosystem has a quality signal of 64/100 (Good) with 9 views, 0 installs and 226 GitHub stars. Polytranslator has 40/100 (Fair) with 1 views, 0 installs and 0 GitHub stars.