DailyMed MCP Server

A Model Context Protocol (MCP) server that provides access to the DailyMed API for comprehensive drug information.

About DailyMed

DailyMed is the official FDA database containing drug labeling information for approved prescription/nonprescription drugs, biologics, and medical devices. It provides structured, up-to-date drug information in multiple formats with cross-references to RxNorm and pharmacologic classifications.

Installation

git clone <repository-url> cd dailymed-mcp-server npm install npm run build

Optional: Download mapping files from DailyMed Mapping Files and place in project root:

pharmacologic_class_mappings.txt
rxnorm_mappings.txt

Usage

npm start # Production npm run dev # Development with hot reload

Key Features

Search Tools

search_spls - Search Structured Product Labels with advanced filtering and pagination
search_drug_names - Search drug names with manufacturer and name type filters
search_rxcuis - Search RxCUI codes with term type filtering
search_drug_classes - Search pharmacologic drug classes
search_application_numbers - Search FDA application numbers
search_uniis - Search UNII codes with advanced filters

Drug Information

get_drug_details - Complete drug information by SET ID
get_drug_history - Version history for drugs
get_drug_ndcs - NDC codes for specific drugs
get_drug_packaging - Packaging information
get_drug_media - Media links (images, documents)

Database Access

get_all_* - Paginated access to drug names, classes, NDCs, RxCUIs, UNIIs, application numbers
get_dailymed_context - Database information and capabilities

Enhanced Mapping (when mapping files present)

search_by_rxnorm_mapping - Search RxNorm mappings by drug name
get_*_mappings_for_setid - Get mappings for specific drugs
search_drugs_by_pharmacologic_class - Find drugs by pharmacologic class

Advanced SPL Search

Simple Search

{ "query": "aspirin", "page": 1, "pageSize": 25 }

Advanced Search

{ "manufacturer": "Pfizer", "boxed_warning": true, "published_date": "2023-01-01", "published_date_comparison": "gte", "page": 1, "pageSize": 50 }

Available filters: application_number, boxed_warning, dea_schedule_code, drug_name, name_type, labeler, manufacturer, ndc, rxcui, unii_code, published_date, and more.

Pagination

All search and list tools support pagination with consistent response format:

{ "data": [...], "pagination": { "page": 1, "pageSize": 25, "totalResults": 150, "totalPages": 6, "hasNextPage": true, "hasPreviousPage": false } }

Claude Desktop Configuration

{ "mcpServers": { "dailymed": { "command": "node", "args": ["/path/to/dailymed-mcp-server/dist/index.js"], "cwd": "/path/to/dailymed-mcp-server" } } }

API Information

Base URL: https://dailymed.nlm.nih.gov/dailymed/services/v2
Format: JSON
Authentication: None required
Compliance: Fully compliant with DailyMed API v2 specifications

Development

npm run build # Build TypeScript npm run dev # Development mode

Project Structure:

src/ ├── clients/ # Modular API clients ├── types/ # TypeScript type definitions ├── utils/ # Utilities and helpers ├── index.ts # MCP server implementation └── tools.ts # Tool definitions