A workspace to build, deploy and manage AI agents and workflows.

Quickstart

Cloud-hosted: sim.ai

Self-hosted

npx sim-setup

Desktop: macOS

macOS 12+, Apple Silicon and Intel. See the desktop docs to point it at a self-hosted deployment.

Capabilities

• Connect 270+ integrations (5,400+ actions, 520+ triggers) and every major LLM
• Add Slack, Notion, HubSpot, Salesforce, databases, and more
• Build agents visually, conversationally, or with code
• Ingest files, knowledge bases, and structured table data
• Monitor runs, logs, schedules, and workflow activity

Security and governance

• SOC 2 Type II, ISO 27001, and GDPR: reports and policies are in the Trust Center
• Single sign-on with SAML 2.0 or OIDC, including Microsoft Entra ID, Okta, and Google Workspace
• SCIM directory provisioning from Microsoft Entra ID or Okta
• Audit logs and permission groups that restrict models, blocks, and tools by workspace and member

These controls are part of the Enterprise plan on Sim Cloud. See the enterprise docs for self-hosted setup.

One workspace, every surface

Chat and workflows are just the start — tables, files, and knowledge all live in the same workspace, in the browser or on your desktop.

Tables — a database, built in	Files — one store for your team and every agent
Knowledge — your agents' memory	Desktop — Sim on your Mac, browser and terminal included

MCP server

Connect Claude, Claude Code, Codex, or any MCP client to Sim Cloud at https://mcp.sim.ai/mcp. Your agent can manage workspaces, run and deploy workflows, and work with tables, knowledge bases, files, and logs. Sign in with OAuth or use an API key.

• Claude Code: claude mcp add --transport http sim https://mcp.sim.ai/mcp, then open /mcp to sign in
• Claude: add https://mcp.sim.ai/mcp as a custom connector under Customize → Connectors
• Codex: codex mcp add sim --url https://mcp.sim.ai/mcp

See the MCP docs for other clients and for self-hosted URLs.

Self-hosting

Requirements: Node.js 20+ and Docker.

npx sim-setup is an interactive wizard that creates a small sim/ deployment directory, provisions the database, generates secrets, writes .env, connects a Chat API key, and starts the published Sim images with Docker Compose. It does not clone the repository.

When it finishes, open http://localhost:3000.

Inside a cloned Sim repository, run bun run sim-setup to unlock the source-only local development and Kubernetes modes.

Reconfigure an optional capability without rerunning the full wizard:

npx sim-setup config
npx sim-setup add email
npx sim-setup add storage
npx sim-setup add sandbox
npx sim-setup add jobs
npx sim-setup add cache
npx sim-setup add knowledge
npx sim-setup add chat
npx sim-setup add llm
npx sim-setup add integration slack

npx sim-setup config detects the effective local-dev, Docker Compose, or current-context Helm configuration and reports configured, missing, or invalid capabilities and OAuth integrations without printing credential values. This is separate from npx sim-setup status, which reports whether installed services are running and healthy.

Manage your install from its directory:

npx sim-setup start | stop | restart   # bring your install up / down / cycle
npx sim-setup update                   # pull and apply Compose images
npx sim-setup status                   # what's installed and healthy
npx sim-setup logs                     # follow logs
npx sim-setup doctor                   # diagnose configuration problems
npx sim-setup down                     # remove containers (data kept)
npx sim-setup reset                    # archive .env and wipe managed data

The setup package detects how you're running and acts accordingly. Use --dir <path> to create or manage a deployment somewhere other than ./sim.

Sim also supports local models via Ollama and vLLM. See the self-hosting docs for details.

Chat API Keys

Chat is a Sim-managed service. npx sim-setup connects a Chat API key for you — sign in when it opens your browser and the key is stored automatically. To view, create, or revoke keys later, go to sim.ai/selfhost/settings/chat-keys.

Environment Variables

See the environment variables reference for the full list, or apps/sim/.env.example for defaults.

Tech Stack

Next.js · Bun · PostgreSQL · Drizzle · Better Auth · Tailwind — and the rest of the stack

• Framework: Next.js (App Router)
• Runtime: Bun
• Database: PostgreSQL with Drizzle ORM
• Authentication: Better Auth
• Schema Validation: Zod
• UI: Shadcn, Tailwind CSS
• Streaming Markdown: Streamdown
• State Management: Zustand, TanStack Query
• Flow Editor: ReactFlow
• Docs: Fumadocs
• Monorepo: Turborepo
• Realtime: Socket.io
• Background Jobs: Trigger.dev
• Remote Code Execution: E2B
• Isolated Code Execution: isolated-vm

Contributing

We welcome contributions! Please see our Contributing Guide for details.

License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.