rxnorm.drugs.class

SERVERApibase SOURCEapibase-mcp-client

Low RISK CLASS

Category Read

Parameters 31 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-whiteknightonhorse-apibase/rxnorm.drugs.class.md

WHAT IT DOES

What rxnorm.drugs.class does on Apibase

AI agents call rxnorm.drugs.class to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`rxcui`	string	Yes	RxNorm concept unique identifier (RxCUI) of the drug ingredient or concept (e.g. "1191" for aspirin). Obtain from rxnorm.drug_search or rxnorm.rxcui_properties.
`source`	string	—	Filter by classification source. Options: ATCPROD (ATC WHO), VA (Veterans Affairs), FDASPL (FDA SPL/EPC), DAILYMED (DailyMed), RXNORM (RxNorm). Omit to include
`class_types`	string	—	Space-separated list of drug classification systems to query. Options: ATC1-4 (WHO Anatomical Therapeutic Chemical), VA (VA Drug Class), EPC (FDA Established Ph

Parameters from the server's own tool schema.

RISK

Why rxnorm.drugs.class is rated Low

Tool queries drug classification data with no side effects or modifications to systems.

From the tool's definition Retrieve pharmacological and therapeutic classifications for a drug by RxCUI.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs rxnorm.drugs.class safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Apibase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For rxnorm.drugs.class, this is the rule to start with:

rxnorm.drugs.class Allowed

rxnorm.drugs.class is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "rxnorm.drugs.class": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Apibase, apply this rule, and every rxnorm.drugs.class call is checked against it from then on.

FAQ

Questions about rxnorm.drugs.class

What does the rxnorm.drugs.class tool do? +

Retrieve pharmacological and therapeutic classifications for a drug by its RxCUI. Returns mappings to multiple classification systems: ATC (WHO Anatomical Therapeutic Chemical hierarchy used globally), VA Drug Class (US Veterans Affairs system), EPC (FDA Established Pharmacologic Class from drug labels), MOA (Mechanism of Action), and PE (Physiologic Effect). Useful for therapeutic substitution, formulary management, drug utilization reviews, and identifying drug classes for adverse event analysis. Each classification entry includes the class ID, name, type, relationship, and source system. It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.

What parameters does rxnorm.drugs.class accept? +

rxnorm.drugs.class accepts 3 parameters: rxcui, source, class_types. Required: rxcui. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on rxnorm.drugs.class? +

Register the Apibase MCP server in PolicyLayer and add a rule for rxnorm.drugs.class: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Apibase. Nothing to install.

What risk level is rxnorm.drugs.class? +

rxnorm.drugs.class is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit rxnorm.drugs.class? +

Yes. Add a rate_limit block to the rxnorm.drugs.class rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block rxnorm.drugs.class completely? +

Set action: deny in the PolicyLayer policy for rxnorm.drugs.class. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides rxnorm.drugs.class? +

rxnorm.drugs.class is provided by the Apibase MCP server (apibase-mcp-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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