ru portal. It addresses the challenge faced by medical professionals who must complete these tests in their limited personal time, offering tools to streamline the process and reduce the administrative burden.
The extension provides several key features tailored for NMO test-taking. It includes an auto-answer search that automatically finds answers while the user completes a test, as well as a manual search option that allows users to look up answers by test name to check if solutions are publicly available. An AI mode enables the extension to solve tests using models such as GPT, Gemini, and Claude via ProxyAPI, with users able to select models based on their budget and desired accuracy. The AI integration supports models through services like DeepSeek, OpenRouter, Ollama (for local models), Together AI, or any OpenAI-compatible API, allowing for flexibility in endpoint selection. The tool also offers a PDF mode where users can upload clinical guidelines in PDF format; the extension then searches for similar answers and displays a score next to each option. Caching is implemented so that answers are stored, preventing repeated requests when navigating between questions, which improves speed and efficiency.
NMO Helper features a floating, draggable panel that appears directly on the test page, with customizable position and settings that persist between sessions. It is available for Chrome, Firefox, Yandex Browser, Edge, Brave, Opera, and other Chromium-based browsers. Installation in Chromium browsers is done manually via developer mode, while the Firefox version is available through the official Mozilla Add-ons catalog, having passed Mozilla’s review and validation. The extension does not require registration, does not collect user data, and does not send analytics or referral links. Its source code is fully open and available for inspection, and it has passed security checks including VirusTotal and Mozilla’s review process.
The extension is completely free to use, with no subscriptions, hidden charges, or advertising. However, using the AI mode requires a paid API key from a third-party service. NMO Helper is positioned as a specialized tool for medical professionals seeking to efficiently complete NMO tests online.
NMO Helper is an Education & learning product. Helping users quickly solve and study for NMO tests using automated answer search and AI assistance. NMO Helper is a consumer product aimed at medical professionals. NMO Helper costs nothing to use. It runs on the web and embeddable surfaces.
NMO Helper first shipped in 2026. The project is developed in the open on GitHub with 99 commits in the last 90 days. Among its 6 catalogued features are auto-answer search, AI mode, and PDF mode.
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