45bf396968
* fix(deps): bump drizzle-orm to 0.45.2 (GHSA-gpj5-g38j-94v9) Resolves Dependabot alert #98. Drizzle ORM <0.45.2 improperly escaped quoted SQL identifiers, allowing SQL injection via untrusted input passed to APIs like sql.identifier() or .as(). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * chore(mcp): adopt native SDK types after @modelcontextprotocol/sdk 1.25.3 bump Replace hand-written schema/annotation shapes with the SDK's exported Tool, JSONRPCResultResponse, and Tool['annotations'] types so changes upstream flow through automatically. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * refactor(types): use drizzle $inferSelect for row types Replace hand-written interfaces that duplicated schema shape with typeof table.$inferSelect aliases for webhook, workflow, and workspaceFiles rows. Also simplify metadata insert/update to use .returning() instead of field-by-field copies. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(uploads): fall through to INSERT if restore-deleted row races a hard delete If a hard delete races between the initial SELECT and the restore UPDATE, .returning() yields no row. Previously the function would return undefined and silently violate the Promise<FileMetadataRecord> contract. Now the function falls through to the INSERT path, which already handles uniqueness races via the 23505 catch. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * chore(uploads): align metadata.ts with global standards Replace dynamic uuid import with generateId() per @sim/utils/id convention, narrow the error catch off `any`, and convert the inline comment to TSDoc. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> --------- 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