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RxNorm MCP by usefulapi

by usefulapi.io · remote · no sign-in to list tools · v1.16.3 · published by io.usefulapi

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

Read only
CompareRegistry entry

13 tools: 13 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

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

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

13 tools

Only reads 13Claude Code: allow
  • rxnorm_find_rxcui_by_nameFind RxNorm concept IDs (RxCUIs) matching a drug name string.No findings

    Why it is in this group

    • The name "rxnorm_find_rxcui_by_name" says "find": a word for reading.
    Description, as the server wrote it
    Find RxNorm concept IDs (RxCUIs) matching a drug name string. RxNav REST: GET /rxcui.

    Annotations the server declares

    • title: Find RxCUI by name
    • readOnlyHint: true
  • rxnorm_get_approximate_matchFuzzy match a term against RxNorm names — tolerant of abbreviations, misspellings, and extra words.No findings

    Why it is in this group

    • The name "rxnorm_get_approximate_match" says "get": a word for reading.
    Description, as the server wrote it
    Fuzzy match a term against RxNorm names — tolerant of abbreviations, misspellings, and extra words. RxNav REST: GET /approximateTerm.

    Annotations the server declares

    • title: Approximate term match
    • readOnlyHint: true
  • rxnorm_get_class_membersGet the drugs belonging to a drug class (RxClass API).No findings

    Why it is in this group

    • The name "rxnorm_get_class_members" says "get": a word for reading.
    Description, as the server wrote it
    Get the drugs belonging to a drug class (RxClass API). RxNav REST: GET /rxclass/classMembers.

    Annotations the server declares

    • title: Get drug class members
    • readOnlyHint: true
  • rxnorm_get_concept_propertiesGet the RxNorm properties (name, synonym, tty, language, suppress, umlscui) of a concept.No findings

    Why it is in this group

    • The name "rxnorm_get_concept_properties" says "get": a word for reading.
    Description, as the server wrote it
    Get the RxNorm properties (name, synonym, tty, language, suppress, umlscui) of a concept. RxNav REST: GET /rxcui/{rxcui}/properties.

    Annotations the server declares

    • title: Get concept properties
    • readOnlyHint: true
  • rxnorm_get_drug_classesGet the drug classes that contain a drug, by drug name (RxClass API).No findings

    Why it is in this group

    • The name "rxnorm_get_drug_classes" says "get": a word for reading.
    Description, as the server wrote it
    Get the drug classes that contain a drug, by drug name (RxClass API). RxNav REST: GET /rxclass/class/byDrugName.

    Annotations the server declares

    • title: Get drug classes for a drug
    • readOnlyHint: true
  • rxnorm_get_drugsSearch drug products (all term types) matching a name, grouped by concept type.No findings

    Why it is in this group

    • The name "rxnorm_get_drugs" says "get": a word for reading.
    Description, as the server wrote it
    Search drug products (all term types) matching a name, grouped by concept type. RxNav REST: GET /drugs.

    Annotations the server declares

    • title: Search drugs by name
    • readOnlyHint: true
  • rxnorm_get_history_statusGet the status, history and attributes of a concept (active, remapped, quantified, etc).No findings

    Why it is in this group

    • The name "rxnorm_get_history_status" says "get": a word for reading.
    Description, as the server wrote it
    Get the status, history and attributes of a concept (active, remapped, quantified, etc). RxNav REST: GET /rxcui/{rxcui}/historystatus.

    Annotations the server declares

    • title: Get concept history / status
    • readOnlyHint: true
  • rxnorm_get_ndcsGet the NDCs (National Drug Codes) associated with a concept.No findings

    Why it is in this group

    • The name "rxnorm_get_ndcs" says "get": a word for reading.
    Description, as the server wrote it
    Get the NDCs (National Drug Codes) associated with a concept. RxNav REST: GET /rxcui/{rxcui}/ndcs.

    Annotations the server declares

    • title: Get NDCs for a concept
    • readOnlyHint: true
  • rxnorm_get_propertyGet a named property (category, name, value) of a concept, e.g.No findings

    Why it is in this group

    • The name "rxnorm_get_property" says "get": a word for reading.
    Description, as the server wrote it
    Get a named property (category, name, value) of a concept, e.g. ATC code or a synonym. RxNav REST: GET /rxcui/{rxcui}/property.

    Annotations the server declares

    • title: Get concept property
    • readOnlyHint: true
  • rxnorm_get_spelling_suggestionsGet spelling suggestions for a possibly-misspelled drug name.No findings

    Why it is in this group

    • The name "rxnorm_get_spelling_suggestions" says "get": a word for reading.
    Description, as the server wrote it
    Get spelling suggestions for a possibly-misspelled drug name. RxNav REST: GET /spellingsuggestions.

    Annotations the server declares

    • title: Get spelling suggestions
    • readOnlyHint: true
  • rxnorm_get_term_typesList all RxNorm term types (metadata), e.g.No findings

    Why it is in this group

    • The name "rxnorm_get_term_types" says "get": a word for reading.
    Description, as the server wrote it
    List all RxNorm term types (metadata), e.g. SCD, SBD, IN, BN. RxNav REST: GET /termtypes.

    Annotations the server declares

    • title: List term types
    • readOnlyHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.16.3. Values in angle brackets are yours to fill in.

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

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__rxnorm__rxnorm_find_rxcui_by_name",
      "mcp__rxnorm__rxnorm_get_drugs",
      "mcp__rxnorm__rxnorm_get_concept_properties",
      "mcp__rxnorm__rxnorm_get_related_by_type",
      "mcp__rxnorm__rxnorm_get_all_related",
      "mcp__rxnorm__rxnorm_get_ndcs",
      "mcp__rxnorm__rxnorm_get_history_status",
      "mcp__rxnorm__rxnorm_get_property",
      "mcp__rxnorm__rxnorm_get_spelling_suggestions",
      "mcp__rxnorm__rxnorm_get_approximate_match",
      "mcp__rxnorm__rxnorm_get_term_types",
      "mcp__rxnorm__rxnorm_get_drug_classes",
      "mcp__rxnorm__rxnorm_get_class_members"
    ],
    "ask": [],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as rxnorm. Review it before you use it.