rxnav mcp for LangChain
io.github.mrfentmen/rxnav-mcp
Drug names, identifiers, and properties from NIH RxNav. No key required.
client:LangChain
transport:stdio
runtime:npm
Install rxnav mcp in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"rxnav-mcp": {
"transport": "stdio",
"command": "npx",
"args": ["-y", "rxnav-mcp"],
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs