K Koda Intelligence
scienceThe Lab
Lab Report

Sim

An open-source AI workspace for building agentic workflows on a visual canvas, with over 1,000 integrations and no vendor lock-in.

Try It Tool screenshot

The Verdict

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.

Pricing

The software itself is open source and free to self-host. The tiers below cover Sim's managed cloud offering.

Free

Self-host or contact

  • Access to basic integrations
  • Limited support
  • Community resources

Pro

From $99/month

  • Access to all integrations
  • Priority support
  • Advanced features

Enterprise

Contact for pricing

  • Custom integrations
  • Dedicated support
  • Enhanced security features

Key Features

hub

1,000+ integrations

Wire agents into Slack, HubSpot, Salesforce, Notion and hundreds more services across your stack.

account_tree

Visual builder

Design agent logic on a drag-and-drop canvas instead of scattering it across code files.

monitoring

Real-time monitoring

Watch workflow runs as they execute so you can spot failures and debug agent behavior live.

storage

Semantic data storage

Store and retrieve context for agents without bolting on a separate vector database.

lock_open

Self-hostable, open source

Run production workflows on your own infrastructure and keep data under your control.

groups

Team-ready

Built to scale from solo builders to production deployments across teams of any size.

Who Should Use It

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.

Limitations

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