Sim is an open-source platform for building and orchestrating AI agent workflows through a visual canvas editor. Developers connect agents, tools, and integration blocks by dragging and dropping, then run workflows instantly. The platform integrates with over 1,000 services and supports all major LLM providers out of the box.
A built-in AI Copilot can generate workflow nodes, fix errors, and iterate on flows from natural language descriptions. The knowledge base feature lets teams upload documents to a vector store, grounding agent responses in domain-specific content. Sim includes 11 pre-built workflow templates covering common use cases that can be customized and deployed in minutes.
Trusted by over 100,000 builders at both startups and enterprises, Sim positions itself between no-code tools and full-code frameworks. It supports self-hosted deployment via Docker Compose for privacy-sensitive environments, while the visual approach makes agent orchestration accessible to teams without deep framework expertise.