Phở Research Tools
AI-लिखित संदर्भों को Crossref, PubMed और OpenAlex के विरुद्ध जाँचता है, वापसी (retractions) को चिह्नित करता है, उद्धरणों को प्रारूपित करता है (APA, Vancouver, BibTeX) और PRISMA 2020 प्रवाह आरेख बनाता है। होस्टेड, मुफ्त, खाते की आवश्यकता नहीं।
होस्ट किया गया MCP सर्वर
npx add-mcp 'https://mcp.pho.chat/mcp'Claude Code, Codex, Cursor और अन्य में इंस्टॉल होता है
दस्तावेज़
Phở Research Tools
An open-source MCP server that lets any AI assistant check its own references. It verifies citations, flags retractions, formats bibliographies and draws PRISMA 2020 diagrams, using only open scholarly databases: Crossref, PubMed and OpenAlex.
AI models invent references. This server gives Claude, ChatGPT, Cursor or any MCP client a way to look each one up in a public database before you trust it.
| Tool | What it does |
|---|---|
verify_references | Checks each reference: verified, real but with wrong details (with the corrected record), likely fabricated, not found, retracted, or ambiguous. |
check_retractions | Retraction, expression-of-concern and correction notices for a list of DOIs. |
search_papers | Searches OpenAlex and PubMed. Every result has a DOI or PMID; retracted papers are left out and preprints are labelled. |
format_citations | APA 7, MLA 9, Chicago, Harvard, Vancouver, IEEE or AMA, or BibTeX, RIS and CSL-JSON, formatted from the real record. |
prisma_flow_diagram | A PRISMA 2020 flow diagram (PNG + SVG) with a check that the counts add up. |
All five tools are read-only. Results are database lookups, not model opinions:
likely_fabricated means the DOI is not registered or no matching record exists.
Use the hosted server (no install)
Add this URL as a custom connector / MCP server in your client:
https://mcp.pho.chat/mcp
- Claude Code:
claude mcp add --transport http pho-research https://mcp.pho.chat/mcp - Claude (web, desktop): Settings → Connectors → Add custom connector.
- ChatGPT: Settings → Apps & Connectors → Developer mode → Create.
- Cursor, VS Code, others: see
apps/mcp/README.md.
No account is needed. Anonymous use has a daily allowance; a free account at pho.chat raises it. Prefer a web page? The same tools run at pho.chat/tools.
Verified Citations skill
This repository also ships Verified Citations, an Agent Skill that makes an assistant
use the tools above on every reference it writes: find sources with search_papers
instead of recalling them, run verify_references before showing anything, format with
format_citations, and say which references were corrected, retracted or removed.
Claude Code (plugin: skill + MCP server in one step)
claude plugin marketplace add thaohienhomes/pho-research-tools
claude plugin install verified-citations@pho-research-tools
The plugin adds the skill and connects the pho-research MCP server. Run /mcp to check
the server shows as connected. From a local checkout, pass the folder path to
marketplace add instead.
skills.sh (Claude Code, Cursor, Codex, Gemini CLI and other agents)
npx skills add thaohienhomes/pho-research-tools --skill verified-citations
This installs the skill only. Connect the MCP server in your agent too, for example in Claude Code:
claude mcp add --transport http pho-research https://mcp.pho.chat/mcp
ClawHub (OpenClaw)
clawhub install verified-citations
Then add https://mcp.pho.chat/mcp as a remote MCP server in OpenClaw.
Claude.ai, ChatGPT and others
Add https://mcp.pho.chat/mcp as a custom connector; step-by-step instructions for each
app are at https://pho.chat/tools/mcp/. Without the connector, paste a reference list into
the free checker at https://pho.chat/tools/citation-checker/.
Run it yourself
Requires Node 22+ and pnpm 9.
pnpm install
pnpm dev # http://localhost:8787/mcp
Every setting is optional for a local run; see apps/mcp/.env.example.
A Dockerfile is in apps/mcp/ (docker build -f apps/mcp/Dockerfile -t pho-mcp .).
Repository layout
| Path | What it is |
|---|---|
apps/mcp | The MCP server (Streamable HTTP, Hono). Quotas, optional sign-in, analytics, all off unless configured. |
packages/scholar-core | Verification, retraction checks, search, citation formatting and PRISMA rendering. Pure TypeScript, no AI SDK, no database. |
packages/citation-engine | DOI, BibTeX and RIS parsing and Crossref helpers. |
docs/samples/scholar-core | Sample outputs, regenerated and checked by the test suite. |
skills/verified-citations | The Verified Citations Agent Skill. |
.claude-plugin/, .mcp.json | Claude Code plugin + one-plugin marketplace (skill and MCP server in one install). |
server.json, glama.json | MCP Registry entry (published by .github/workflows/publish-mcp-registry.yml) and Glama maintainer claim. |
pnpm test # 190 tests, all replaying recorded API responses
pnpm typecheck
Open data only
Every source this server calls has an open API and open metadata. Nothing paywalled is
fetched or stored. Embedded CSL styles are CC BY-SA 3.0; details in NOTICE.md.
Privacy
What the hosted server receives and keeps: https://pho.chat/tools/privacy/
Contributing and license
Issues and pull requests are welcome; read CONTRIBUTING.md first.
Security reports: SECURITY.md.
Code is MIT. Built by Phở, a research workspace for doctors and scientists.
Tiếng Việt: Phở Research Tools là máy chủ MCP mã nguồn mở giúp trợ lý AI tự kiểm tra tài liệu tham khảo (xác minh trích dẫn, kiểm tra rút bài, định dạng, vẽ sơ đồ PRISMA 2020), chỉ dùng dữ liệu khoa học mở.