Rxnav Mcp

io.github.mrfentmenPublished by GitHub account mrfentmenv1.0.0Updated Oct 24, 2026

Drug names, identifiers, and properties from NIH RxNav. No key required.

VerifiedSTDIODesktop onlyLocation & Lifestyle

Overview

AI-generated overview

A local MCP server that gives an assistant access to NIH RxNav drug names, identifiers and properties, with no API key required.

What you can do
Looks up drug names and identifiers from the NIH RxNav service and returns their properties to the assistant. The manifest lists no individual tools, so the exact operations are not documented here. It runs as a local process on the user's machine.
When to use it
Useful when an assistant needs to resolve or describe drug names and identifiers from a public NIH source, for example while working with medication data. Not needed if your work does not involve drug terminology.
Requirements
Runs as a local stdio process installed from the npm package rxnav-mcp, so Node.js and npm are needed. No API key, environment variables or headers are declared. Network access to the NIH RxNav service is implied by the description.
Before you install
The server is desktop-only and not web-executable. No credentials are requested, but queries about drug names are sent to the external NIH RxNav service. The manifest lists no tools, so review what it actually exposes before relying on it.

Installation

In SourceWeft

  1. Open Rxnav Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

This repository has no README.

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.0LatestSep 22, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.