# stacktxt > Machine-readable infrastructure for autonomous AI search engines, shopping agents, and conversational models. ## About stacktxt stacktxt builds machine-readable text and data infrastructure for digital brands and modern commerce. While websites are built for human eyes and visual web browsers, stacktxt makes them crawlable, readable, and actionable for autonomous AI models including ChatGPT Search, Perplexity, Claude, Google Gemini, and Apple Intelligence. ## Machine Endpoints & Protocols - [Full Documentation Index](https://stacktxt.com/llms-full.txt): Comprehensive technical specification and machine catalog. - [WebMCP Agent Manifest](https://stacktxt.com/.well-known/webmcp.json): Discovery manifest defining agentic tools and protocol capabilities. - [OpenAI Plugin Manifest](https://stacktxt.com/.well-known/ai-plugin.json): Agent discovery manifest for model integration. - [Robots Directives](https://stacktxt.com/robots.txt): Machine crawler permission specifications. - [XML Sitemap](https://stacktxt.com/sitemap.xml): Canonical index of public pages. ## Key Endpoints - [Home](https://stacktxt.com/): Official root storefront and agentic infrastructure overview. - [Booking Portal](https://stacktxt.com/book): Direct 1:1 technical strategy session scheduling with stacktxt co-founders. - [Privacy Policy](https://stacktxt.com/privacy): Data privacy standards and infrastructure logging policies. - [Email Preferences](https://stacktxt.com/unsubscribe): RFC 8058 compliant communication preference center. ## Contact & Identifiers - Organization: stacktxt, LLC (Dallas, TX 75201, United States) - Maxwell Thomason, Co-Founder: max@stacktxt.com - Technical Inquiries: team@stacktxt.com - Official Domain: https://stacktxt.com - GitHub: https://github.com/agentic-max-kellen - Instagram: https://instagram.com/stacktxt