97f78c60b4
* feat(fathom): add Fathom AI Notetaker integration * fix(fathom): address PR review feedback - Add response.ok checks to all 5 tool transformResponse functions - Fix include_summary default to respect explicit false (check undefined) - Add externalId validation before URL interpolation in webhook deletion * fix(fathom): address second round PR review feedback - Remove redundant 204 status check in deleteFathomWebhook (204 is ok) - Use consistent undefined-guard pattern for all include flags - Add .catch() fallback on webhook creation JSON parse - Change recording_id default from 0 to null to avoid misleading sentinel * fix(fathom): add missing crm_matches to list_meetings transform and fix action_items type - Add crm_matches pass-through in list_meetings transform (was silently dropped) - Fix action_items type to match API schema (description, user_generated, completed, etc.) - Add crm_matches type with contacts, companies, deals, error fields * fix(fathom): guard against undefined webhook id on creation success * fix(fathom): add type to nested trigger outputs and fix boolean coercion - Add type: 'object' to recorded_by and default_summary trigger outputs - Use val === true || val === 'true' pattern for include flag coercion to safely handle both boolean and string values from providerConfig --------- Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com> Co-authored-by: Lakee Sivaraya <71339072+lakeesiv@users.noreply.github.com> Co-authored-by: Vikhyath Mondreti <vikhyath@simstudio.ai> Co-authored-by: Vikhyath Mondreti <vikhyathvikku@gmail.com>
Build and deploy AI agent workflows in minutes.
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
Using Local Models with Ollama
Run Sim with local AI models using Ollama - no external APIs required:
# Start with GPU support (automatically downloads gemma3:4b model)
docker compose -f docker-compose.ollama.yml --profile setup up -d
# For CPU-only systems:
docker compose -f docker-compose.ollama.yml --profile cpu --profile setup up -d
Wait for the model to download, then visit http://localhost:3000. Add more models with:
docker compose -f docker-compose.ollama.yml exec ollama ollama pull llama3.1:8b
Using an External Ollama Instance
If Ollama is running on your host machine, use host.docker.internal instead of localhost:
OLLAMA_URL=http://host.docker.internal:11434 docker compose -f docker-compose.prod.yml up -d
On Linux, use your host's IP address or add extra_hosts: ["host.docker.internal:host-gateway"] to the compose file.
Using vLLM
Sim supports vLLM for self-hosted models. Set VLLM_BASE_URL and optionally VLLM_API_KEY in your environment.
Self-hosted: Dev Containers
- Open VS Code with the Remote - Containers extension
- Open the project and click "Reopen in Container" when prompted
- Run
bun run dev:fullin the terminal or use thesim-startalias- This starts both the main application and the realtime socket server
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
- 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
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 && bunx drizzle-kit migrate --config=./drizzle.config.ts
- Start development servers:
bun run dev:full # Starts both 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
Key environment variables for self-hosted deployments. See .env.example for defaults or env.ts for the full list.
| Variable | Required | Description |
|---|---|---|
DATABASE_URL |
Yes | PostgreSQL connection string with pgvector |
BETTER_AUTH_SECRET |
Yes | Auth secret (openssl rand -hex 32) |
BETTER_AUTH_URL |
Yes | Your app URL (e.g., http://localhost:3000) |
NEXT_PUBLIC_APP_URL |
Yes | Public app URL (same as above) |
ENCRYPTION_KEY |
Yes | Encrypts environment variables (openssl rand -hex 32) |
INTERNAL_API_SECRET |
Yes | Encrypts internal API routes (openssl rand -hex 32) |
API_ENCRYPTION_KEY |
Yes | Encrypts API keys (openssl rand -hex 32) |
COPILOT_API_KEY |
No | API key from sim.ai for Copilot features |
Tech Stack
- Framework: Next.js (App Router)
- Runtime: Bun
- Database: PostgreSQL with Drizzle ORM
- Authentication: Better Auth
- UI: Shadcn, Tailwind CSS
- State Management: Zustand
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
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