TabStack is a web-data API designed to empower AI agents and automation workflows to interact with the live web; it enables users to extract structured content from any URL (HTML, Markdown, JSON), transform raw web pages into usable formats (for example converting product listings into comparison tables or blog posts into social-ready snippets), perform complex browser-style automations (clicking, scrolling, submitting forms) and run deep research queries that surface insights and summaries across hundreds of sources. It is built for production-scale reliability and low latency, optimizing fetches by parsing only what’s necessary and escalating to full-page rendering only when needed, and features built-in resilience (automatic retries, adaptation to flaky HTML) to ensure robustness in real-world web environments.