Aurelius — a fact-checked research MCP server. Bring rigorous, web-verified academic drafting to Claude, ChatGPT, Gemini and any MCP-capable app.
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<p align="center"> <img src="assets/aurelius-banner.jpg" alt="Aurelius — a fact-checked research MCP server" width="100%"> </p> UNDER DEVELOPMENT, IT'LL BECOME SOMETHING GREAT # Aurelius (given under the name marcus aurelius) [](https://pypi.org/project/aurelius-mcp/) [](https://pypi.org/project/aurelius-mcp/) [](LICENSE) [](https://modelcontextprotocol.io) **A fact-checked research MCP server.** Aurelius gives any MCP-capable app — Claude (Desktop / Code / claude.ai), Gemini CLI, Cursor, and (via a remote deployment) ChatGPT — a set of research tools that **verify every citation against real scholarly databases** (OpenAlex, Crossref — DOI-backed and retraction-aware) **and every claim against live web sources** before presenting it. No more hallucinated papers, no more silently-cited retracted studies. Aurelius grew out of a multi-agent research framework and distills its best idea into a portable tool server: **screen a topic → draft → fact-check → revise**. --- ## Why this design solves the "API cost" problem By default Aurelius runs in **host-driven mode**: the app you connect it to (Claude, Gemini, etc.) uses *its own* model to reason and write, and Aurelius just supplies the research and fact-checking tools. That means **Aurelius needs no LLM API key of its own** — the tokens are covered by your existing Claude/Gemini/ChatGPT subscription. Citation verification runs against [OpenAlex](https://openalex.org) and [Crossref](https://www.crossref.org) — both free, both keyless. The only optional key is [Tavily](https://tavily.com), used for general `web_search` and as a fallback when a citation isn't indexed in either scholarly database (free tier available). There's also an optional **autonomous mode** (`a…
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