simstudio-app

simstudio-app

Docker app from rorar's Repository

Overview

Sim Studio is an AI-powered development environment for building and testing agents. This is the main application server providing the web interface, API, and collaboration features. Features: AI agent development, real-time collaboration, semantic search with vector embeddings, and integrated development tools. Requires: simstudio-db (PostgreSQL with pgvector), simstudio-realtime (WebSocket), and simstudio-valkey (session storage).

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Sim — Integrate, Context, Build, and Monitor AI agents

A workspace to build, deploy and manage AI agents and workflows.

Quickstart

Cloud-hosted: sim.ai

Open sim.ai

Self-hosted

npx simstudio

Open http://localhost:3000

Docker must be installed and running. Use -p, --port <port> to run Sim on a different port, or --no-pull to skip pulling the latest Docker images.

The Sim platform — chat on the left, the visual workflow builder on the right

Capabilities

  • Connect 1,000+ integrations and every major LLM
  • Add Slack, Notion, HubSpot, Salesforce, databases, and more
  • Build agents visually, conversationally, or with code
  • Ingest files, knowledge bases, and structured table data
  • Monitor runs, logs, schedules, and workflow activity

One workspace, every surface

Chat and workflows are just the start — tables, files, knowledge, and scheduled tasks all live in the same workspace.

Tables in Sim — structured data your agents can query

Tables — a database, built in

 Files in Sim — documents for your team and every agent

Files — one store for your team and every agent
Knowledge bases in Sim — synced docs your agents can search

Knowledge — your agents' memory

 Scheduled tasks in Sim — recurring agent runs on a calendar

Scheduled tasks — runs on your schedule

Self-hosting

Docker Compose

git clone https://github.com/simstudioai/sim.git && cd sim
docker compose -f docker-compose.prod.yml up -d

Open http://localhost:3000

Sim also supports local models via Ollama and vLLM. See the Docker self-hosting docs for setup details.

Manual Setup

Requirements: Bun, Node.js v20+, PostgreSQL 12+ with pgvector

  1. Clone and install:
git clone https://github.com/simstudioai/sim.git
cd sim
bun install
bun run prepare  # Set up pre-commit hooks
  1. 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.

  1. 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"
  1. Run migrations:
cd packages/db && bun run db:migrate
  1. 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).

Chat API Keys

Chat is a Sim-managed service. To use Chat on a self-hosted instance:

  • Go to https://sim.ai → Settings → Chat keys and generate a Chat API key
  • Set COPILOT_API_KEY environment 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

Next.js · Bun · PostgreSQL · Drizzle · Better Auth · Tailwind — and the rest of the stack

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.

Built by the Sim team in San Francisco

Install simstudio-app on Unraid in a few clicks.

Find simstudio-app in Community Apps on your Unraid server, review the template, and click Install. Unraid handles the Docker app or plugin setup from the published template.

Open the Apps tab on your Unraid server Search Community Apps for simstudio-app Review the template variables and paths Click Install
Explore Unraid OS

Requirements

Requires simstudio-db (PostgreSQL), simstudio-realtime (WebSocket), and simstudio-valkey (Redis) on the same Docker network (simstudio_internal). All three must be running and healthy before starting simstudio-app.

IMPORTANT: Before adding this container, you must create the Docker network 'simstudio_internal' first. Follow these steps in Unraid:

  1. Open Terminal (Go to Main, click Terminal button)
  2. Run: docker network create simstudio_internal
  3. Go to Settings > Docker
  4. Set "Enable Docker" to "No" and click Apply
  5. Set "Preserve user defined networks" to "Yes" and click Apply
  6. Set "Enable Docker" to "Yes" and click Apply
  7. The network is now ready for use with all Sim Studio containers

Categories

Development

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Links

Projectsimstudio.aiSupportgithub.comRegistrygithub.comTemplateraw.githubusercontent.com

Details

Repository
ghcr.io/simstudioai/simstudio:latest
Registry
https://github.com/simstudioai/sim/pkgs/container/simstudio
Last Updated2026-07-18
First Seen2026-07-17

Runtime arguments

Web UI
http://[IP]:[PORT:3000]
Network
simstudio_internal
Shell
sh
Privileged
false
Extra Params
--health-cmd="curl -fsS http://127.0.0.1:3000" --health-interval=90s --health-retries=3 --health-start-period=10s --health-timeout=5s

Template configuration

Port: Web UIPorttcp

Sim Studio web interface and API port

Target
3000
Default
3000
Value
3000
--- Database ---Variable

PostgreSQL connection settings. Must match simstudio-db configuration.

DATABASE_URLVariable

PostgreSQL connection URL (format: postgresql://user:password@host:port/database). Must match simstudio-db.

Default
postgresql://postgres:postgres@simstudio-db:5432/simstudio
Value
postgresql://postgres:postgres@simstudio-db:5432/simstudio
--- Authentication &amp; Security ---Variable

Authentication and security configuration.

BETTER_AUTH_SECRETVariable

Authentication secret key (shared with simstudio-realtime). Must be 32+ characters. Generate: openssl rand -base64 32

BETTER_AUTH_URLVariable

Base URL for authentication (same as NEXT_PUBLIC_APP_URL)

Default
http://localhost:3000
Value
http://localhost:3000
INTERNAL_API_SECRETVariable

Secret for internal service-to-service communication (shared with simstudio-realtime). Generate: openssl rand -base64 32

ENCRYPTION_KEYVariable

Data encryption key for sensitive information. Generate: openssl rand -base64 32

API_ENCRYPTION_KEYVariable

API-specific encryption key. Generate: openssl rand -base64 32

--- Application URLs ---Variable

Public URLs and domain configuration.

NEXT_PUBLIC_APP_URLVariable

Public application URL (e.g., http://your-server-ip:3000 or https://simstudio.example.com). Used by browser clients.

Default
http://localhost:3000
Value
http://localhost:3000
TRUSTED_ORIGINSVariable

Comma-separated list of additional trusted origins for authentication (e.g., apex + www, aliases, reverse-proxy IPs). Leave empty to use only NEXT_PUBLIC_APP_URL.

--- Realtime &amp; WebSocket ---Variable

Real-time communication settings.

SOCKET_SERVER_URLVariable

Internal URL for WebSocket server (container-to-container)

Default
http://simstudio-realtime:3002
Value
http://simstudio-realtime:3002
NEXT_PUBLIC_SOCKET_URLVariable

Public WebSocket URL for browser clients. Leave empty to use page origin (requires reverse proxy to route /socket.io). Set explicitly if realtime is on different host:port (e.g., wss://socket.example.com).

--- Valkey Session Storage ---Variable

Redis/Valkey connection for session persistence.

REDIS_URLVariable

Valkey connection URL (format: redis://host:port/db)

Default
redis://simstudio-valkey:6379/1
Value
redis://simstudio-valkey:6379/1
--- External APIs ---Variable

Third-party API integrations.

COPILOT_API_KEYVariable

GitHub Copilot API key for AI features

SIM_AGENT_API_URLVariable

URL for Sim Agent API (e.g., http://agent-service:port)

OLLAMA_URLVariable

Ollama API endpoint for local LLM inference (optional)

Default
http://localhost:11434
Value
http://localhost:11434
--- Performance ---Variable

Performance tuning and resource limits.

ADMISSION_GATE_MAX_INFLIGHTVariable

Maximum number of concurrent inflight requests to the admission gate

Default
500
Value
500
--- System ---Variable

Node.js and timezone configuration.

NODE_ENVVariable

Node.js environment (production/development)

Default
production
Value
production
Variable: TZVariable

Timezone. See: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List

Target
TZ
Default
Europe/Berlin
Value
Europe/Berlin
--- Advanced ---Variable

Advanced settings and debugging options.

LOG_LEVELVariable

Log verbosity: error, warn, info, debug

Default
info
Value
info