Real-time search, content extraction, AI-powered answers, and deep research across 25+ specialized data sources.

• Four core APIs: Search (web, academic, financial, news), Contents (URL extraction with summarization), Answer (cited synthesis), and DeepResearch (comprehensive reports in fast/standard/heavy modes)
• Supports domain-specific queries across academic papers, SEC filings, clinical trials, stock data, prediction markets, and transportation sources with source filtering
• Official SDK libraries required for JavaScript/TypeScript (valyu-js) and Python (valyu) with built-in type safety, retries, and streaming support
• Query best practices emphasize specificity, conciseness, and constraint-based filtering; complex requests should be split into focused queries