VectifyAI / PageIndex

Python library and SDK that builds a hierarchical tree index of documents so an LLM can reason through it for retrieval, without vector databases or chunking.

strands-agents / harness-sdk

Open-source SDK for building and running AI agents in Python and TypeScript, with a fully assembled harness and a model-agnostic agent loop.

crmne / ruby_llm

Ruby framework for building AI features with a unified API across 23 model providers, tools, agents, and Rails conventions.