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LOINC API MCP Server

@Kryzo

Repository

Basic information

Category

Developer Tools

Transports

stdio

Author

Kryzo

About LOINC API MCP Server

This project provides a modular Python wrapper for the LOINC API, with an MCP server interface that integrates seamlessly with Claude Desktop for intelligent medical terminology lookup and standardization.

LOINC API MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "mcp-Loinc": {
      "command": "python",
      "args": [
        "loinc_server.py",
        "--username=your_loinc_username",
        "--password=your_loinc_password"
      ]
    }
  }
}

LOINC API MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is LOINC API MCP Server?

A modular Python wrapper for the LOINC API that provides an MCP server interface for use with Claude Desktop. It enables intelligent medical terminology lookup and standardization, allowing users to search for LOINC codes, retrieve detailed code information, access panels, navigate hierarchies, and work with standardized answer lists.

How to use LOINC API MCP Server?

Install dependencies with pip install -r requirements.txt, then start the server with python loinc_server.py --username=your_loinc_username --password=your_loinc_password. For Claude Desktop integration, add the MCP server configuration (name, URL, basic auth credentials) to your Claude Desktop config file. The server provides MCP tools that accept JSON parameters for searching, fetching details, and navigating LOINC data.

Key features of LOINC API MCP Server

  • Comprehensive LOINC code search with filtering options
  • Detailed code information including component, property, system, and method
  • Panel structure access and hierarchy navigation
  • Dual‑mode operation: online API or local database for offline use
  • Seamless MCP integration with Claude Desktop

Use cases of LOINC API MCP Server

  • Search for glucose-related LOINC codes and retrieve their details
  • Examine the structure of a LOINC panel (e.g., 24331-1) and its component tests
  • Navigate parent‑child relationships between LOINC terms (e.g., LP7839-6)
  • Access standardized answer lists for LOINC observations
  • Work offline by creating and querying a local LOINC database

Frequently asked questions

1

How do I get access to the LOINC API?

Register for a free account at LOINC.org, accept the terms of use, and use your LOINC username and password for API authentication.

2

What authentication does the server use?

The LOINC API uses HTTP Basic Authentication. Provide your LOINC username and password when starting the server via the `--username` and `--password` command‑line arguments.

3

What if I get empty results from a search?

Ensure your LOINC account has the proper permissions and that you are using the correct authentication credentials.

4

Can I use the server without an internet connection?

Yes. Create a local LOINC database by running `python loinc_server.py --create-db --username=... --password=...`. Then the server can operate offline against that database.

5

What are the main MCP tools available?

The server provides tools for LOINC code search, LOINC details retrieval, panel information, hierarchy navigation, and access to top 2000 codes and answer lists.

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