NCBI E-utilities
Chat with AI and run tools instantly.
NCBI E-utilities API providing access to PubMed and other biomedical databases with search and retrieval capabilities.
Use in your AI tool
Use the tools from this page
Opens ChatGPT on the web or desktop and asks it to use the WebMCP tools available here.
Connect the MCP server
You’ll sign in to MCPBundles when your client connects.
https://mcp.mcpbundles.com/bundle/ncbi-eutilsChat in MCPBundles Studio
Sign in once, then chat here with saved access — one connection to many servers, with a history of what your AI ran.
Chat with AI and run tools instantly.
Browse all toolsLive probe refreshed Sep 14, 2026 · Endpoint host mcp.mcpbundles.com
AI SkillSKILL.md
Domain knowledge for NCBI E-utilities — workflow patterns, data models, and gotchas for your AI agent.
NCBI E-utilities
NCBI E-utilities API provides access to PubMed and other biomedical databases. Search and retrieval for biomedical literature.
Data Model
- PubMed articles — search returns PMIDs; use for downstream fetches.
- Summary, Abstract, Full Text Links, References, Citations, MeSH Terms — article metadata scoped by PMID.
Gotchas
- Rate limit: 10 requests/minute; NCBI enforces strictly. Wait 6+ seconds between requests.
Tools discovered (7)
Get Abstract
Retrieve full abstract text for PubMed articles. Returns complete abstract content for biomedical research articles.
Get Citations
Find articles that cite a given PubMed article. Returns reverse citations and articles that reference the given publication.
Get Full Text Links
Retrieve full-text access links for PubMed articles. Returns PMC and other full-text access links when available.
Get Mesh Terms
Retrieve Medical Subject Headings (MeSH) for PubMed articles. Returns controlled vocabulary terms for biomedical subject classification.
Get Pubmed Summary
Retrieve detailed summary information for PubMed articles. Returns detailed article metadata including title, authors, abstract, journal, publication date, and DOI. Essential for detailed analysis of biomedical literature and research paper evaluation.
Get References
Retrieve references cited by a PubMed article. Returns bibliography and citation information for research articles.
Search Pubmed
Search PubMed database using NCBI E-utilities API. Returns PubMed IDs and basic metadata for biomedical literature matching search criteria. PubMed contains millions of citations from biomedical journals worldwide, essential for medical research and evidence-based medicine.
Frequently Asked Questions
What is the NCBI E-utilities MCP server?
NCBI E-utilities API providing access to PubMed and other biomedical databases with search and retrieval capabilities. It provides 7 tools that AI agents can use through the Model Context Protocol (MCP).
How do I connect NCBI E-utilities to my AI agent?
Add the MCPBundles server URL to your MCP client configuration (Claude Desktop, Cursor, VS Code, etc.). The URL format is: https://mcp.mcpbundles.com/bundle/ncbi-eutils. Authentication is handled automatically.
How many tools does NCBI E-utilities provide?
NCBI E-utilities provides 7 tools that can be called by AI agents, along with a SKILL.md that gives your AI agent domain knowledge about when and how to use them.
What authentication does NCBI E-utilities require?
NCBI E-utilities uses open data APIs — no authentication required.
Setup Instructions
Connect NCBI E-utilities to any MCP client in minutes
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