Introduction

Sim is an open-source visual workflow builder for building and deploying AI agent workflows. Design intelligent automation systems using a no-code interface—connect AI models, databases, APIs, and business tools through an intuitive drag-and-drop canvas. Whether you're building chatbots, automating business processes, or orchestrating complex data pipelines, Sim provides the tools to bring your AI workflows to life.

What You Can Build

AI Assistants & Chatbots
Build intelligent conversational agents that integrate with your tools and data. Enable capabilities like web search, calendar management, email automation, and seamless interaction with business systems.

Business Process Automation
Eliminate manual tasks across your organization. Automate data entry, generate reports, respond to customer inquiries, and streamline content creation workflows.

Data Processing & Analysis
Transform raw data into actionable insights. Extract information from documents, perform dataset analysis, generate automated reports, and synchronize data across platforms.

API Integration Workflows
Orchestrate complex multi-service interactions. Create unified API endpoints, implement sophisticated business logic, and build event-driven automation systems.

How It Works

Visual Workflow Editor
Design workflows using an intuitive drag-and-drop canvas. Connect AI models, databases, APIs, and third-party services through a visual, no-code interface that makes complex automation logic easy to understand and maintain.

Modular Block System
Build with specialized components: processing blocks (AI agents, API calls, custom functions), logic blocks (conditional branching, loops, routers), and output blocks (responses, evaluators). Each block handles a specific task in your workflow.

Flexible Execution Triggers
Launch workflows through multiple channels including chat interfaces, REST APIs, webhooks, scheduled cron jobs, or external events from platforms like Slack and GitHub.

Real-time Collaboration
Enable your team to build together. Multiple users can edit workflows simultaneously with live updates and granular permission controls.

Integrations

Sim provides native integrations with 160+ services across multiple categories:

AI Models: OpenAI, Anthropic, Google Gemini, Groq, Cerebras, local models via Ollama or VLLM
Communication: Gmail, Slack, Microsoft Teams, Telegram, WhatsApp
Productivity: Notion, Google Workspace, Airtable
Development: GitHub, Jira, Linear, automated browser testing
Search & Data: Google Search, Perplexity, Firecrawl, Exa AI
Databases: PostgreSQL, MySQL, Supabase, Pinecone, Qdrant

For custom integrations, leverage our MCP (Model Context Protocol) support to connect any external service or tool.

Copilot

Ask Questions & Get Guidance
Copilot answers questions about Sim, explains your workflows, and provides suggestions for improvements. Use the @ symbol to reference workflows, blocks, documentation, knowledge, and logs for contextual assistance.

Build & Edit Workflows
Switch to Agent mode to let Copilot propose and apply changes directly to your canvas. Add blocks, configure settings, wire variables, and restructure workflows with natural language commands.

Adaptive Reasoning Levels
Choose from Fast, Auto, Advanced, or Behemoth modes depending on task complexity. Start with Fast for simple questions, scale up to Behemoth for complex architectural changes and deep debugging.

Learn more about Copilot capabilities and how to maximize productivity with AI assistance.

Deployment Options

Cloud-Hosted
Launch immediately at sim.ai with fully managed infrastructure, automatic scaling, and built-in observability. Focus on building workflows while we handle the operations.

Self-Hosted
Deploy on your own infrastructure using Docker Compose or Kubernetes. Maintain complete control over your data with support for local AI models through Ollama integration.

Next Steps

Ready to build your first AI workflow?

Getting Started

Create your first workflow in 10 minutes

Workflow Blocks

Learn about the building blocks

Tools & Integrations

Explore 160+ built-in integrations

Team Permissions

Set up workspace roles and permissions

Common Questions

Sim offers a free Community plan with 1,000 one-time credits to get started. Paid plans start at $25/month (Pro) with 5,000 credits and go up to $100/month (Max) with 20,000 credits. Annual billing is available at a 15% discount. You can also self-host Sim for free on your own infrastructure.

Yes. Sim is open source under the Apache 2.0 license. The full source code is available on GitHub and you can self-host it, contribute to development, or modify it for your own needs. Enterprise features (SSO, access control) have a separate license that requires a subscription for production use.

Sim supports 15+ providers including OpenAI, Anthropic, Google Gemini, Groq, Cerebras, DeepSeek, Mistral, xAI, and OpenRouter. You can also run local models through Ollama or VLLM at no API cost. Bring Your Own Key (BYOK) is supported so you can use your own API keys at base provider pricing with no markup.

No. Sim is a no-code visual builder where you design workflows by dragging blocks onto a canvas and connecting them. For advanced use cases, the Function block lets you write custom JavaScript, but it is entirely optional.

Yes. Sim provides Docker Compose configurations for self-hosted deployments. The stack includes the Sim application, a PostgreSQL database with pgvector, and a realtime collaboration server. You can also integrate local AI models via Ollama for a fully offline setup.

There is no limit on the number of workflows you can create on any plan. Usage limits apply to execution credits, rate limits, and file storage, which vary by plan tier.

Sim offers 160+ native integrations across categories including AI models, communication tools (Gmail, Slack, Teams, Telegram), productivity apps (Notion, Google Workspace, Airtable), development tools (GitHub, Jira, Linear), search services (Google Search, Perplexity, Exa), and databases (PostgreSQL, Supabase, Pinecone). For anything not built in, you can use the MCP (Model Context Protocol) support to connect custom services.

Sim is purpose-built for AI agent workflows rather than general task automation. It provides a visual canvas for orchestrating LLM-powered agents with built-in support for tool use, structured outputs, conditional branching, and real-time collaboration. The Copilot feature also lets you build and modify workflows using natural language.