Sim, a YC-Backed Open-Source Workspace for AI Agents, Tops Its Product Hunt Launch at ~28.8K Stars

Product Hunt·medium signal

Sim (simstudioai/sim) is an Apache-2.0 open-source visual workspace for building and deploying agentic workflows, connecting agents to 1,000+ integrations and LLMs; it led engagement on its July 10, 2026 Product Hunt launch. The project reports ~28.8K GitHub stars, 100K+ builders, and a $7M Series A backed by Paul Graham and Perplexity. It targets production agents (Slack bots, compliance agents, data pipelines) rather than demos, competing with n8n-style builders in the agent era.