rxnav mcp for Zed

io.github.mrfentmen/rxnav-mcp

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

client:Zed transport:stdio runtime:npm

Install rxnav mcp in Zed

~/.config/zed/settings.json · windows: %APPDATA%\Zed\settings.json

{
  "context_servers": {
    "rxnav-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "rxnav-mcp"
      ]
    }
  }
}

Merge this into your existing settings object — do not replace the file. Zed docs