c95ac3bc23
* improvement(browser-use,stagehand): expose live session URLs and align with latest API specs - Browser Use: switch to v2 camelCase schema, fetch live URL from sessions endpoint, add startUrl/maxSteps/allowedDomains/vision/flashMode/thinking/systemPromptExtension/structuredOutput/metadata params, surface liveUrl/shareUrl/sessionId outputs - Stagehand: fetch Browserbase debug URL, add mode/maxSteps params, surface liveViewUrl/sessionId outputs, bump @browserbasehq/stagehand to ^3.2.1, update to claude-sonnet-4-6 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(browser-use): respect API default for highlightElements Only send highlightElements when user explicitly toggles it; previously defaulted to true which silently overrode the v2 API default of false. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(browser-use,stagehand): address PR review feedback - Browser Use: fetch liveUrl during polling once sessionId is known, instead of immediately after task creation. Handles tasks started without profile_id (where sessionId isn't returned in create response) and ensures session is active before fetching. - Stagehand: coerce empty/whitespace maxSteps strings to undefined so they're dropped from the request body instead of failing zod validation as ''. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(stagehand): preserve liveViewUrl and sessionId on agent error If the agent throws after Browserbase session init succeeds, callers can still surface the live view / session ID for debugging. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(browser-use): coerce empty maxSteps strings to undefined Mirrors the Stagehand block's handling so a cleared field doesn't pass through as ''. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(browser-use): skip metadata when empty --------- Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
The open-source platform to build AI agents and run your agentic workforce. Connect 1,000+ integrations and LLMs to orchestrate agentic workflows.
Build Workflows with Ease
Design agent workflows visually on a canvas—connect agents, tools, and blocks, then run them instantly.
Supercharge with Copilot
Leverage Copilot to generate nodes, fix errors, and iterate on flows directly from natural language.
Integrate Vector Databases
Upload documents to a vector store and let agents answer questions grounded in your specific content.
Quickstart
Cloud-hosted: sim.ai
Self-hosted: NPM Package
npx simstudio
Note
Docker must be installed and running on your machine.
Options
| Flag | Description |
|---|---|
-p, --port <port> |
Port to run Sim on (default 3000) |
--no-pull |
Skip pulling latest Docker images |
Self-hosted: Docker Compose
git clone https://github.com/simstudioai/sim.git && cd sim
docker compose -f docker-compose.prod.yml up -d
Sim also supports local models via Ollama and vLLM — see the Docker self-hosting docs for setup details.
Self-hosted: Manual Setup
Requirements: Bun, Node.js v20+, PostgreSQL 12+ with pgvector
- Clone and install:
git clone https://github.com/simstudioai/sim.git
cd sim
bun install
bun run prepare # Set up pre-commit hooks
- Set up PostgreSQL with pgvector:
docker run --name simstudio-db -e POSTGRES_PASSWORD=your_password -e POSTGRES_DB=simstudio -p 5432:5432 -d pgvector/pgvector:pg17
Or install manually via the pgvector guide.
- Configure environment:
cp apps/sim/.env.example apps/sim/.env
# Create your secrets
perl -i -pe "s/your_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_internal_api_secret/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_api_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
# DB configs for migration
cp packages/db/.env.example packages/db/.env
# Edit both .env files to set DATABASE_URL="postgresql://postgres:your_password@localhost:5432/simstudio"
- Run migrations:
cd packages/db && bun run db:migrate
- Start development servers:
bun run dev:full # Starts Next.js app and realtime socket server
Or run separately: bun run dev (Next.js) and cd apps/sim && bun run dev:sockets (realtime).
Copilot API Keys
Copilot is a Sim-managed service. To use Copilot on a self-hosted instance:
- Go to https://sim.ai → Settings → Copilot and generate a Copilot API key
- Set
COPILOT_API_KEYenvironment variable in your self-hosted apps/sim/.env file to that value
Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech Stack
- Framework: Next.js (App Router)
- Runtime: Bun
- Database: PostgreSQL with Drizzle ORM
- Authentication: Better Auth
- UI: Shadcn, Tailwind CSS
- Streaming Markdown: Streamdown
- State Management: Zustand, TanStack Query
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
- Isolated Code Execution: isolated-vm
Contributing
We welcome contributions! Please see our Contributing Guide for details.
License
This project is licensed under the Apache License 2.0 - see the LICENSE file for details.
Made with ❤️ by the Sim Team