MCP server

RxNorm MCP by usefulapi

io.usefulapi/rxnorm

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Look up drug names, RxCUIs, ingredients and interactions in RxNorm.

Website Source

At a glance

Type

MCP server

Publisher

usefulapi.io (verified by the MCP Registry)

Status

Working at last check

Tools

13

Token cost

About 1,736 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http rxnorm https://rxnorm.usefulapi.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.rxnorm]
url = "https://rxnorm.usefulapi.io/mcp"

Gemini CLI

{"mcpServers":{"rxnorm":{"httpUrl":"https://rxnorm.usefulapi.io/mcp"}}}

Cursor

{"mcpServers":{"rxnorm":{"url":"https://rxnorm.usefulapi.io/mcp"}}}

VS Code

{"servers":{"rxnorm":{"type":"http","url":"https://rxnorm.usefulapi.io/mcp"}}}

Antigravity

agy mcp add rxnorm https://rxnorm.usefulapi.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"rxnorm","server_url":"https://rxnorm.usefulapi.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"rxnorm","server_url":"https://rxnorm.usefulapi.io/mcp"}

Tools

• rxnorm_find_rxcui_by_name ~170 tokens
  Find RxNorm concept IDs (RxCUIs) matching a drug name string. RxNav REST: GET /rxcui.
• rxnorm_get_all_related ~105 tokens
  Get every concept directly or indirectly related to a concept (all term types). RxNav REST: GET /rxcui/{rxcui}/allrelated.
• rxnorm_get_approximate_match ~176 tokens
  Fuzzy match a term against RxNorm names — tolerant of abbreviations, misspellings, and extra words. RxNav REST: GET /approximateTerm.
• rxnorm_get_class_members ~226 tokens
  Get the drugs belonging to a drug class (RxClass API). RxNav REST: GET /rxclass/classMembers.
• rxnorm_get_concept_properties ~114 tokens
  Get the RxNorm properties (name, synonym, tty, language, suppress, umlscui) of a concept. RxNav REST: GET /rxcui/{rxcui}/properties.
• rxnorm_get_drug_classes ~164 tokens
  Get the drug classes that contain a drug, by drug name (RxClass API). RxNav REST: GET /rxclass/class/byDrugName.
• rxnorm_get_drugs ~131 tokens
  Search drug products (all term types) matching a name, grouped by concept type. RxNav REST: GET /drugs.
• rxnorm_get_history_status ~110 tokens
  Get the status, history and attributes of a concept (active, remapped, quantified, etc). RxNav REST: GET /rxcui/{rxcui}/historystatus.
• rxnorm_get_ndcs ~96 tokens
  Get the NDCs (National Drug Codes) associated with a concept. RxNav REST: GET /rxcui/{rxcui}/ndcs.
• rxnorm_get_property ~135 tokens
  Get a named property (category, name, value) of a concept, e.g. ATC code or a synonym. RxNav REST: GET /rxcui/{rxcui}/property.
• rxnorm_get_related_by_type ~131 tokens
  Get concepts related to a concept, restricted to the specified term types. RxNav REST: GET /rxcui/{rxcui}/related.
• rxnorm_get_spelling_suggestions ~108 tokens
  Get spelling suggestions for a possibly-misspelled drug name. RxNav REST: GET /spellingsuggestions.
• rxnorm_get_term_types ~70 tokens
  List all RxNorm term types (metadata), e.g. SCD, SBD, IN, BN. RxNav REST: GET /termtypes.

Browse

• Health and medicine

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