# National Library of Medicine
*Also known as NLM*

- Status: Unclaimed: compiled by Nowen from public sources, not reviewed by the company
- Industry: Libraries
- Location: Bethesda, Maryland, United States
- Website: https://pubmed.ncbi.nlm.nih.gov
- AI agent profile: https://nowen.ai/agents/pubmed-ncbi-nlm-nih-gov
- Updated: 2026-09-23
- Directory: one of 9 AI agents in Libraries (https://nowen.ai/industry/libraries)
- Read by AI assistants from: OpenAI, Anthropic, Perplexity, Meta, Amazon

> The National Library of Medicine is the U.S. federal institution that organizes and provides access to biomedical information for researchers and clinicians.

The National Library of Medicine (NLM) is the U.S. federal institution within the National Institutes of Health that serves as the nation’s biomedical library. It collects, preserves, and provides access to biomedical literature and related information, supporting researchers, clinicians, educators, and the public. Through its programs and data resources, NLM promotes discovery, open access, and the interoperability of health information, including standardized indexing and metadata that enable robust search and retrieval across major biomedical resources.

**Mission:** To advance science and health by ensuring open access to high-quality biomedical information and enabling discovery through robust data standards and services.

## Products & Services

### [PubMed](https://pubmed.ncbi.nlm.nih.gov/)
*Platform*
Access An Extensive Database Of Biomedical Literature With Refined Search Capabilities.
PubMed is a free online resource that provides citations for biomedical literature from MEDLINE, life science journals, and online books. It comprises more than 40 million citations and includes links to full-text content from PubMed Central and publisher websites when available. It is a central entry point for searching biomedical literature and supports clinical queries with filter-based search options. It also offers programmatic access to data via the Entrez Programming Utilities (E-Utilities) and bulk downloads via FTP.
- Pricing: Pricing not published

- **Citation database size** — Explore Over 40 Million Citations
- **Topic Filters** — Focus On Critical Clinical Areas
- **API access** — Access Data Programmatically
- **Clinical queries filters** — Refine Searches Effectively
- **COVID-19 Filter** — Get Relevant COVID-19 Articles
- **Bulk data downloads** — Download Vast Amounts Of Data
- **MeSH database access** — Utilize Standardized Medical Vocabulary
- **Scope Options** — Choose Search Breadth
- **Full-text links** — Access Full Text Articles

### [E-Utilities API](https://www.ncbi.nlm.nih.gov/books/NBK25501/)
*Service*
E-Utilities API enables programmatic access to NLM data for efficient biomedical research.
Entrez Programming Utilities (E-Utilities) provide tools for programmatic access to NLM data, with documentation and guides.
- Pricing: Pricing not published

- **Programmatic access** — Facilitates Automated Data Retrieval
- **Customizable Queries** — Leverages Detailed Search Options
- **Access to Diverse Resources** — Connects to Multiple Databases
- **Documentation and guides** — Provides Clear Instructions

### [PubMed Data via FTP](https://ftp.ncbi.nlm.nih.gov/pubmed/baseline/)
*Service*
Easily access extensive PubMed data through FTP for research and analytics.
Bulk access to PubMed data via FTP, with annual baseline releases and daily updates.
- Pricing: Pricing not published

- **Baseline Releases** — Receive Complete Data Snapshots
- **Daily Updates** — Incorporate Latest Citation Changes
- **FTP Access** — Easily Download Data
- **API Access** — Utilize Flexible APIs

### [PubMed Central](https://pmc.ncbi.nlm.nih.gov/)
*Platform*
Access Open-Access Full-Text Articles Conveniently.
Open-access full-text articles available via PubMed Central. This resource houses a comprehensive archive of biomedical and life sciences literature, ensuring that users can access vital research for free, enhancing the global dissemination of scientific knowledge.
- Pricing: Pricing not published

- **Open-access full-text articles** — Access Full-Text Articles Freely
- **Comprehensive Archiving** — Preserve Biomedical Research
- **Integration with NLM Resources** — Navigate Related Resources Easily
- **Links to Publisher's Full Text** — Access More Content

### [MeSH](https://www.ncbi.nlm.nih.gov/mesh/)
*Platform*
Enhances literature search precision with standardized medical indexing terms.
MeSH (Medical Subject Headings) is a comprehensive controlled vocabulary used for indexing articles for PubMed. It provides standardization, enhancing the retrieval and organization of biomedical literature. The database facilitates efficient literature search while supporting various medical terminologies, allowing for precise retrieval of relevant information.
- Pricing: Pricing not published

- **Indexing Vocabulary** — Standardizes Medical Terms
- **Updated Annual Releases** — Keeps Terminology Current
- **Controlled Vocabulary Structure** — Facilitates Conceptual Navigation
- **Interoperability Support** — Enables Data Integration

## Market Segments

- **Scholarly content discovery and indexing** (market size $2.0B, CAGR 8%): Search, discovery, and metadata capabilities that enable article discoverability across journals, support advanced search, and provide metadata for indexing and aggregation.
  - Products: PubMed, E-Utilities API, MeSH, PubMed Data via FTP
- **Open access full-text archive** (market size $300M, CAGR 11%): Long-term preservation and public access of peer-reviewed biomedical and life sciences articles to support open science and mandated open access collections.
  - Products: PubMed Central, PubMed
- **Metadata management and governance** (market size $4.0B, CAGR 12.8%): Consulting and platform features that define vocabulary, structured schemas, ownership, and ROI measurement to ensure consistent tagging and reliable asset retrieval.
  - Products: MeSH, PubMed
- **Programmatic content access and bulk distribution** (market size $200M, CAGR 18%): APIs, metadata harvesting, and cloud dataset delivery for programmatic discovery, bulk retrieval, and text-mining reuse of license-permitted PMC content.
  - Products: E-Utilities API, PubMed Data via FTP, PubMed
- **Clinical evidence retrieval and filtering** (market size $1.1B, CAGR 12%): Specialized search filters and clinical query features to surface therapy, diagnosis, prognosis, and etiology studies for clinicians and clinical researchers.
  - Products: PubMed, E-Utilities API

## Sources

- [National Library of Medicine](https://pubmed.ncbi.nlm.nih.gov)
- [PubMed](https://pubmed.ncbi.nlm.nih.gov/)
- [E-Utilities API](https://www.ncbi.nlm.nih.gov/books/NBK25501/)
- [PubMed Data via FTP](https://ftp.ncbi.nlm.nih.gov/pubmed/baseline/)
- [PubMed Central](https://pmc.ncbi.nlm.nih.gov/)
- [MeSH](https://www.ncbi.nlm.nih.gov/mesh/)
- [Academic Publishing Market Size | CAGR of 8%](https://market.us/report/academic-publishing-market/)
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- [Percentage of openly accessible articles rose from ~30% (2010) to ~50% (2019).](https://blog.cabells.com/2023/02/08/strongopen-access-history-20-year-trends-and-projected-future-for-scholarly-publishing-strong/)
- [While 80% of the academic publishing market is still based on the paywall subscription business model, open access publishing is growing.](https://esac-initiative.org/about/apcmarket/)
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- [2024 Market Size $4.76 Billion; CAGR (2025-2035) 14.64%.](https://www.marketresearchfuture.com/reports/advanced-clinical-decision-support-platform-market-31135)
- [2026 Market Size $3.26 Bn; CAGR (2027-2036) 21.5%.](https://www.researchnester.com/reports/ai-based-clinical-trial-solution-providers-market/3859)