medlineplus.clinical.rxnorm_lookup

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/medlineplus.clinical.rxnorm-lookup.md

WHAT IT DOES

What medlineplus.clinical.rxnorm_lookup does on Apibase

AI agents call medlineplus.clinical.rxnorm_lookup 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) for the drug (e.g. 161 for Aspirin, 5640 for Ibuprofen, 723 for Metformin).
`language`	string	—	Response language: en (English) or es (Spanish). Default: en.
`display_name`	string	—	Human-readable drug name (optional, improves matching). Example: "Metformin".

Parameters from the server's own tool schema.

RISK

Why medlineplus.clinical.rxnorm_lookup is rated Low

Tool retrieves public medical reference data with no side effects or data modification.

From the tool's definition Look up patient-friendly drug information, returns MedlinePlus drug topic titles, URLs, summaries

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs medlineplus.clinical.rxnorm_lookup 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 medlineplus.clinical.rxnorm_lookup, this is the rule to start with:

medlineplus.clinical.rxnorm_lookup Allowed

medlineplus.clinical.rxnorm_lookup 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": {
    "medlineplus.clinical.rxnorm_lookup": {}
  }
}

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 medlineplus.clinical.rxnorm_lookup call is checked against it from then on.

FAQ

Questions about medlineplus.clinical.rxnorm_lookup

What does the medlineplus.clinical.rxnorm_lookup tool do? +

Look up patient-friendly drug information for an RxNorm concept ID (RXCUI) via the NLM MedlinePlus Connect service. Returns MedlinePlus drug topic titles, URLs, and plain-language summaries for medications matching the concept (e.g. 161 → Aspirin, 5640 → Ibuprofen, 723 → Metformin, 29046 → Lisinopril, 41493 → Atorvastatin). Provide the optional display_name to improve match accuracy. Supports English and Spanish responses (language=es). Source: US NLM MedlinePlus Connect — public domain, no auth, unlimited free. It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.

What parameters does medlineplus.clinical.rxnorm_lookup accept? +

medlineplus.clinical.rxnorm_lookup accepts 3 parameters: rxcui, language, display_name. Required: rxcui. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on medlineplus.clinical.rxnorm_lookup? +

Register the Apibase MCP server in PolicyLayer and add a rule for medlineplus.clinical.rxnorm_lookup: 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 medlineplus.clinical.rxnorm_lookup? +

medlineplus.clinical.rxnorm_lookup is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit medlineplus.clinical.rxnorm_lookup? +

Yes. Add a rate_limit block to the medlineplus.clinical.rxnorm_lookup 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 medlineplus.clinical.rxnorm_lookup completely? +

Set action: deny in the PolicyLayer policy for medlineplus.clinical.rxnorm_lookup. 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 medlineplus.clinical.rxnorm_lookup? +

medlineplus.clinical.rxnorm_lookup 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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