An open-source AI workspace for building agentic workflows on a visual canvas, with over 1,000 integrations and no vendor lock-in.
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Sim is aimed at developers and technical teams who want to build agent workflows visually without handing control of their data to a closed platform. The open-source, self-hostable core is the real draw here; if you would otherwise reach for a hosted-only tool and worry about lock-in, Sim is worth a serious look. If you just need a quick automation and do not care about ownership, the value proposition thins out against simpler no-code options.
The software itself is open source and free to self-host. The tiers below cover Sim's managed cloud offering.
Self-host or contact
From $99/month
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Wire agents into Slack, HubSpot, Salesforce, Notion and hundreds more services across your stack.
Design agent logic on a drag-and-drop canvas instead of scattering it across code files.
Watch workflow runs as they execute so you can spot failures and debug agent behavior live.
Store and retrieve context for agents without bolting on a separate vector database.
Run production workflows on your own infrastructure and keep data under your control.
Built to scale from solo builders to production deployments across teams of any size.
Sim fits teams that treat agent workflows as production infrastructure, not one-off scripts. The self-hosting angle makes it especially relevant where data residency or vendor independence matters.