Lists the live capability-first catalog with input/output schemas, execution modes, providers, provider-native options, availability, batch limits, and pricing evidence. Direct AI-answer capabilities include web.ask_chatgpt, web.ask_copilot, web.ask_perplexity, web.ask_gemini, web.ask_google_ai_mode and web.ask_grok for GEO/AEO and brand visibility. Inspect availability; named engine routes never fall back to a different engine or generic research.