Sim
A self-hosted AI agent workspace with visual workflow building, shared knowledge and data, and team access controls; chat uses a managed service.

Sim is an AI agent workspace for teams building automations and managing their use across an organization. It brings workflow creation, shared data and run monitoring into one place. You can self-host the workspace, but chat uses a Sim-managed service and requires sign-in to obtain a Chat API key.
- Agent building: Create agents through conversation, a visual canvas or code, connecting models with Slack, HubSpot, Salesforce and other services.
- Shared data and knowledge: Agents can read and update tables, use shared files, and consult knowledge bases synced from Notion, Google Drive, Confluence and other connected sources.
- Run monitoring: Inspect each workflow block's inputs, outputs and failures, alongside cost and performance data, schedules and workflow activity.
- Organization controls: Permission groups restrict access to models, integrations and tools, while spend controls track costs and limit usage; SSO, SCIM, audit records and workspace retention settings support team administration.
- Terminal access: A CLI lets developers build, run and manage agents from a terminal or Claude Code.
Sim is open source under Apache 2.0 and supports self-hosting through Docker or Kubernetes on your own server or cloud. Its workspace is available in a browser and through a macOS desktop app for Apple Silicon and Intel Macs. The desktop app can connect to a self-hosted deployment. Model choices include GPT-6 Astra and Claude Sonnet, and external model and integration services remain separate from the self-hosted workspace.