# MedlinePlus Connect health topics

Plain-language MedlinePlus health topics and lab test pages (title, summary, link) for an ICD-10-CM diagnosis code or a LOINC lab code, in English or Spanish. Needs code system and code. Served by National Library of Medicine.

Plain-language MedlinePlus health topics and lab test pages (title, summary, link) for an ICD-10-CM diagnosis code or a LOINC lab code, in English or Spanish. Use to explain a condition or test to patients.

- Tool ID: `nlm/medlineplus-connect`
- Provider: [National Library of Medicine](/providers/nlm.md)
- Capability: [Knowledge & research](/tools/knowledge.md)
- Price: no charge per call
- Authentication: an authorised Agentik workspace is required for execution, including zero-price tools.

## Pricing contract

No charge per call. A workspace is still needed so your agent can call it.


```json
{
  "model": "per_call",
  "amountUsd": 0
}
```

## Complete input schema


```json
{
  "type": "object",
  "properties": {
    "code_system": {
      "type": "string",
      "enum": [
        "icd10cm",
        "loinc"
      ],
      "description": "Code system of the code, e.g. 'icd10cm'"
    },
    "code": {
      "type": "string",
      "pattern": "^[A-Za-z0-9.-]{2,12}$",
      "description": "Diagnosis or lab code, e.g. 'E11.9' (ICD-10-CM) or '4548-4' (LOINC)"
    },
    "language": {
      "type": "string",
      "enum": [
        "en",
        "es"
      ],
      "default": "en",
      "description": "Content language, e.g. 'en'"
    }
  },
  "required": [
    "code_system",
    "code"
  ],
  "additionalProperties": false
}
```

## Published example

This is the provider tool’s published example. Replace example values with the user’s requested inputs, respecting the schema; do not execute an example merely to test a connection.


```json
{
  "tool_id": "nlm/medlineplus-connect",
  "input": {
    "code_system": "icd10cm",
    "code": "E11.9"
  }
}
```

## Execute and retrieve

Inspect again before execution, explain the price and obtain the required authority. Use MCP run_tool or POST /v1/run with this tool ID, valid input and an idempotency key. Save the returned run ID and follow the actual state. If Agentik answers that the tool is temporarily unavailable, do not retry it blindly; use discovery to propose an alternative.

A partial or uncertain result can still have consumed provider resources. Consult [billing](/docs/billing.md), [idempotency](/docs/idempotency.md) and [asynchronous results](/docs/async.md).

Licence: Public domain (MedlinePlus health topic and lab test content).

Attribution: Source: MedlinePlus, National Library of Medicine.

[Provider documentation](https://medlineplus.gov/medlineplus-connect/web-service/)

[REST inspection](https://api.agentik.cc/v1/tools/nlm/medlineplus-connect) · [OpenAPI](/openapi.json) · [Connection guide](/connect.md)

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[HTML page](/providers/nlm/medlineplus-connect) · [Agent index](/llms.txt)