# X Brain

> Turn your X (Twitter) liked tweets into a searchable, AI-classified knowledge base

## Overview

X Brain is a web app ($19 one-time payment) that transforms your X/Twitter liked tweets and bookmarks into a searchable knowledge base. Upload your X data archive, and X Brain uses AI to embed, classify, tag, and enrich every liked tweet — making years of saved content instantly searchable by meaning, not just keywords.

## Key Features

- **Upload X Archive** - Drop your X data archive ZIP to extract liked tweets and bookmarks
- **Semantic Search** - Find tweets by meaning using OpenAI or Gemini embeddings
- **AI Classification** - Automatic categorization into 15 knowledge domains and 65+ subcategories
- **Deep Tagging** - Subcategory tagging and content type detection (resource, trick, opinion, news, etc.)
- **Knowledge Enrichment** - LLM-generated key takeaways, knowledge types, relevance scores, and references
- **Analytics Dashboard** - Category breakdowns, yearly trends, language distribution
- **Free Preview** - Upload and preview your archive before paying; AI pipeline unlocked after purchase
- **CSV/JSON Export** - Export your enriched tweet data
- **Bring Your Own Key** - Use your own OpenAI, Anthropic, or Gemini API keys

## Pricing

- **One-Time Payment**: $19 (no subscription)
- **Free Preview**: Upload and browse your archive before paying
- **BYOK**: Bring your own LLM API key (OpenAI, Anthropic, or Gemini)

## How It Works

1. Download your X data archive from X/Twitter settings
2. Upload the ZIP file to X Brain
3. Preview your liked tweets for free
4. Pay $19 to unlock the AI pipeline
5. Tweets are automatically embedded, classified, tagged, and enriched
6. Search by meaning, browse by category, export your data

## Tech Stack

- **Framework**: Next.js 16, React 19, TypeScript
- **Database**: Supabase (PostgreSQL + pgvector for embeddings)
- **Auth**: Supabase Auth with Google OAuth
- **Payments**: Stripe (one-time payment)
- **LLM Providers**: OpenAI, Anthropic Claude, Google Gemini (user provides API key)
- **Embeddings**: OpenAI text-embedding-3-small or Gemini text-embedding-004 (384 dimensions)
- **Styling**: Tailwind CSS 4, shadcn/ui
- **Deployment**: Vercel

## Who It's For

- Power users who like hundreds or thousands of tweets
- Researchers who use X likes as a reading list
- Content creators who bookmark references and inspiration
- Anyone who wants to search their liked tweets by topic or meaning

## Contact

- **Website**: https://www.xbrain.live
- **Support**: xbrainapp@outlook.com

## Key Pages

- Home: https://www.xbrain.live/
- Pricing: https://www.xbrain.live/pricing
- Blog: https://www.xbrain.live/blog
- Privacy: https://www.xbrain.live/privacy
- Terms: https://www.xbrain.live/terms

## Blog Articles

- [How to Export & Backup All Your X Likes (2026 Guide)](https://www.xbrain.live/blog/export-backup-twitter-likes)
- [Auto-Organize X Likes by Topic: Complete Guide](https://www.xbrain.live/blog/organize-twitter-likes-by-topic)
- [How to Search Your Old Liked Tweets (Complete Guide 2026)](https://www.xbrain.live/blog/search-old-liked-tweets)
- [Search X Likes by Keyword, Username & Date (2026)](https://www.xbrain.live/blog/search-twitter-likes-keyword-username-date)
- [Turn X Bookmarks Into Searchable Knowledge Base](https://www.xbrain.live/blog/twitter-bookmarks-searchable-knowledge-base)

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Last Updated: March 2026
Version: 1.1