#44th of 10 in Agent platforms
Sim
Workspace to build, deploy and monitor agents with 1,000+ integrations
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- Stars
- 29.8k
- License
- Apache-2.0
- Last commit
- Oct 2026
- Last release
- Oct 2026
Overview
Sim is a Next.js and Bun app on PostgreSQL that builds agents visually, by chat or in code, with monitoring, schedules and logs. The npx sim-setup wizard (Node.js 20+ and Docker) provisions the database, secrets and images and serves port 3000. Tables, files and knowledge bases share the workspace, 1,000+ integrations such as Slack, Notion and HubSpot are available, and local models run via Ollama or vLLM.
Who it is for: Teams wanting a hosted-style agent builder on their own servers
Strengths
- Built-in tables, file store and knowledge bases alongside workflows and chat
- 1,000+ integrations including Slack, Notion, HubSpot, Salesforce and databases
- Local models via Ollama and vLLM; Apache-2.0 license
- sim-setup wizard adds email, storage, sandbox, jobs, cache or knowledge later
Weaknesses
- Chat is a Sim-managed service; self-hosted installs need a Chat API key from sim.ai
- Setup prompt in the README notes the Compose stack needs 12 GB+ RAM
- Background jobs use Trigger.dev and remote code execution uses E2B
- Self-hosting goes through an npx wizard rather than a documented compose file
What it needs
- RAM ≥ 12 GB
- no GPU
- Docker + Compose
- Needs PostgreSQL, Docker, Sim Chat API key
- Models: Ollama, vLLM
- port 3000
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