Best AI Agent Builders

Best AI Agent Builders compared. Indie picks from founders building right now, plus the established options.

Indie picks 3

A local-first unified memory layer for all your AI agents

Let your AI agent build and deploy websites and apps with secure hosting

Measured design specs for AI agents to build from real products

AutoGen is Microsoft's framework for multi agent AI applications.

CrewAI orchestrates teams of AI agents for autonomous workflows.

Flowise is a no code platform for building LLM apps and agents.

LangChain is a framework for building applications powered by language models.

Letta builds stateful AI agents with long term memory.

Stack AI is a no code platform for building AI agents and workflows.

Vellum is a development platform for production LLM agents and apps.