# Notra > Source: > Published: 2026-10-02 08:55:53+00:00 Open Source Alternative to: Last 30 days Last commit Repository age License Repository Notra is a Generative Engine Optimization (GEO) platform built for marketing teams and founders who want to know whether AI assistants recommend their brand when buyers ask for solutions. Instead of guessing, it runs your chosen prompts against [ChatGPT](https://openalternative.co/alternatives/grok), Claude, Gemini, and Perplexity with live web search enabled, then stores the full answers so you can see exactly what each engine said, where your brand appeared, and which competitors took the spots you didn't. The dashboard tracks four core metrics: Every scan stores the complete engine response, not just a score. You can open any prompt, read the full answer, see which pages the engine cited, and even send a follow-up in the thread to test whether your recommendation survives a buyer pushing back. Traffic tracking works without a script tag. It runs as middleware in Next.js, Nuxt, Astro, TanStack Start, or SvelteKit, and human traffic is dropped before anything is stored. Zero data retention is available as an add-on for teams with compliance requirements, restricting scans to model providers that support ZDR. Plans are tiered by the number of AI answers tracked per month, starting at 2,000 on Starter and scaling to unlimited on Enterprise. Every Sunday we deconstruct one proprietary app and pick the best open source alternatives worth switching to. Stars