Agent: Claude, OpenAI Agents SDKLLM: Claude 3.5, GPT-4#RAG#AI Agents#Document Retrieval#LLM Infrastructure#Agentic AI
PageIndex is an agentic document index that enables LLMs to perform human-like retrieval over long documents without vector databases or chunking. It uses reasoning-based retrieval instead of semantic similarity, scaling to millions of documents through a file-level tree architecture. Includes chat platform, MCP integration, and API access.