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How to use Sim: what you can do with it

What is Sim? Sim is a workspace to build, deploy and monitor AI agents and workflows, visually, conversationally or with code. It connects 270+ integrations and every major LLM, has built-in tables, files and knowledge bases, exposes an MCP server, and can be self-hosted with the npx sim-setup wizard on Docker Compose.

How do I use it? Make sure Node.js 20+ and Docker are installed; then run npx sim-setup, which creates a sim/ deployment directory, provisions the database, generates secrets and writes .env; open http://localhost:3000 when the wizard finishes. Full steps below.

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What do you want to do?

3 use cases

Quick start with Sim

  1. Check you have what it needs: Node.js 20+ and Docker for self-hosting; A Chat API key for the model provider, or local models via Ollama or vLLM; Or the hosted cloud at sim.ai.
  2. Open simstudioai/sim on GitHub and read the README and license.
  3. Make sure Node.js 20+ and Docker are installed
  4. Run npx sim-setup, which creates a sim/ deployment directory, provisions the database, generates secrets and writes .env
  5. Open http://localhost:3000 when the wizard finishes
  6. Check health with npx sim-setup status and diagnose problems with npx sim-setup doctor

These steps come from our top use case, Self-host an AI agent workflow builder, which also has a copy-paste agent prompt.

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Best AI repos for Work and operations

About this repo

  • Who it is forTeams and builders who want an open source, self-hostable alternative for agent workflows with integrations like Slack, Notion and HubSpot.
  • Why it is hot30k stars, talked about in 2 AI sources we track
  • LanguageTypeScript
  • Sourcegithub.com/simstudioai/sim ยท Back to Hot repos

Requirements

  • Node.js 20+ and Docker for self-hosting
  • A Chat API key for the model provider, or local models via Ollama or vLLM
  • Or the hosted cloud at sim.ai

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Questions about Sim

What is Sim?

Sim is a workspace to build, deploy and monitor AI agents and workflows, visually, conversationally or with code. It connects 270+ integrations and every major LLM, has built-in tables, files and knowledge bases, exposes an MCP server, and can be self-hosted with the npx sim-setup wizard on Docker Compose. It is an open-source project on GitHub: https://github.com/simstudioai/sim.

How do I use Sim?

Make sure Node.js 20+ and Docker are installed; then run npx sim-setup, which creates a sim/ deployment directory, provisions the database, generates secrets and writes .env; open http://localhost:3000 when the wizard finishes. The use cases on this page give the full steps and a copy-paste agent prompt for each job.

Who is Sim for?

Teams and builders who want an open source, self-hostable alternative for agent workflows with integrations like Slack, Notion and HubSpot.

What can I do with Sim?

3 use cases so far, for example: Self-host an AI agent workflow builder; Add Slack and a knowledge base to your Sim install; Run and deploy Sim workflows from your coding agent. Each has steps and a copy-paste agent prompt.

What do I need to run Sim?

Node.js 20+ and Docker for self-hosting; A Chat API key for the model provider, or local models via Ollama or vLLM; Or the hosted cloud at sim.ai.

What are alternatives to Sim?

Other hot AI repos in Work and operations: n8n Skills, Nocodb, Agno, n8n MCP, Kestra.

Is Sim safe to run?

Deduped does not own, audit or vouch for it. Read the README and license, run it on your own systems first and review every command before you run it.