Sim
An open-source workspace for building, deploying and governing AI agents, used online or self-hosted.
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About Sim
Sim is a workspace for building AI agents and workflows. You build visually on a canvas, conversationally or with code, then connect the agents to hundreds of integrations such as Slack, GitHub, Gmail, Notion, Salesforce and Stripe, using any major language model.
It is aimed at teams, with permission groups, spend limits and central control over access and data. The project is open source and can be self-hosted, and it also offers a CLI, an API and MCP support.
Strengths
- Visual workflow canvas plus conversational and code building
- Hundreds of integrations and support for major LLMs
- Self-hosting option
- Team controls for access and spending
Limitations
- Organisation-focused features add complexity for solo use
- Advanced governance features point toward sales-led plans
Details
- Pricing
- FreemiumOpen source to self-host; the hosted workspace is available with sales-led plans for organisations.
- License
- Open source, license not stated
- Developer
- Sim
- Platforms
- Web, Self-hosted, Command line
- How it runs
- Web application, Self-hosted
- Best suited for
- Teams building and managing AI agent workflows they can self-host
- Categories
- Automation, AI agents
- Last verified
- Added
- Sources
Alternatives to Sim
Compare allSoftware that can replace Sim for an important use case, and what changes if you switch.
Dify
Self-hosted platform for building AI agent workflows and RAG pipelines.
Dify offers a self-hostable visual builder for workflows, RAG and agents, under a custom source-available license instead of an open-source one.
Langflow
Visual builder for creating and deploying AI agent workflows.
Langflow is an MIT-licensed visual agent builder with API and MCP server output, lacking Sim's team access and spending controls.
n8n
Source-available workflow automation platform with AI nodes and self-hosting.
n8n is a source-available workflow automation platform with AI nodes and a self-hostable community edition, mixing no-code nodes with custom code.
Activepieces
An open-source automation platform for building workflows, AI agents and app integrations, self-hosted or cloud.
Activepieces is an open-source automation platform with over 760 integrations, AI agents and an MCP server, with some enterprise features sold separately.
Gumloop
A web platform for building AI agents and automation workflows that connect to work apps.
Gumloop is a hosted-only no-code agent builder with access controls for IT teams, so data passes through the service rather than your own servers.
Microsoft Copilot Studio
A Microsoft platform for building, managing and publishing custom AI agents connected to business data.
Microsoft Copilot Studio builds and governs agents tied to business data within Microsoft 365, requiring a paid plan and offering no self-hosting.
LobeHub
AI agent workspace for building, scheduling and chatting with agents across many models.
LobeHub is a self-hostable workspace for building, scheduling and chatting with agents, with MCP marketplaces under a source-available license.
TextCortex
An AI platform for companies to build, deploy and govern AI agents that work with internal data.
TextCortex is a hosted enterprise platform for deploying and governing agents on company data, without a self-hosting option.
Sim as an alternative
Listings that name Sim as an alternative.
Agenta
An open-source workspace for building AI agents that work with teams in Slack or Telegram.
Sim is an open-source workspace for building and governing agents, online or self-hosted, with a visual canvas and hundreds of integrations instead of Slack-first templates.
Coze
An AI agent platform for building assistants, automating workflows and producing office documents.
Sim is an open-source agent workspace with a visual canvas, hundreds of integrations and a self-hosting option, geared toward team use.
MindsHub (formerly MindsDB)
Open source agent workspace for research, coding and business tasks.
Sim is an open-source agent workspace with a visual canvas and hundreds of integrations, adding team access and spending controls aimed at organisations.
MindStudio
A no-code web platform for designing, building and deploying AI agents and applications.
Sim is an open-source agent workspace with visual and code building plus self-hosting, whose organisation features add complexity for solo users.
Relevance AI
A platform for building specialist AI agents that handle sales, customer success, marketing and HR tasks.
Sim is an open-source agent workspace that can be self-hosted, with hundreds of integrations and team controls for access and spending.
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MaxKB
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Zapier AI
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