Open Source AI Chat Framework

Build AI apps.
Ship fast.

ChaasKit is a full-stack framework for building production-ready AI chat applications. Teams, projects, MCP tools, payments, and more — out of the box.

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MIT Licensed • TypeScript • React

Dark & Light themesTeams & ProjectsDocument context

Features

Everything you need to build AI chat apps

A complete toolkit for building, deploying, and scaling AI applications

Multi-Provider AI

Connect to OpenAI, Anthropic, or bring your own AI endpoint. Switch between models with a single config change.

MCP Tool Integration

Enable your AI with powerful tools via Model Context Protocol. Connect GitHub, databases, APIs, and more.

Team Workspaces

Collaborate with your team in shared workspaces. Set team context, manage roles, and keep projects organized.

Project Organization

Keep conversations organized with project folders. Each project can have its own AI context and settings.

Document Context

Upload documents and reference them in chat with @mentions. The AI understands your files and can answer questions about them.

Full Customization

Custom theming, branding, and authentication. Make it yours with a single configuration file.

How It Works

From zero to production

Get your AI chat app running in minutes, not months

Configure your app

Set up your AI provider, authentication, and branding in a single config file.

Add your tools

Connect MCP servers to give your AI superpowers - file access, APIs, databases, and more.

Deploy and scale

Ship to production with Docker, Railway, or any Node.js hosting platform.

Get Started

One command to launch

Scaffold a complete AI chat app in seconds

$ npx create-chaaskit create my-app

Configuration

One config file. Endless possibilities.

Everything from AI agents to payments, theming to team permissions — controlled from a single TypeScript file.

Multi-Agent

Multiple AI Agents

agent: {
  agents: [
    {
      id: 'general',
      name: 'Assistant',
      provider: 'openai',
      model: 'gpt-4o-mini',
      systemPrompt: 'You are helpful.',
      isDefault: true,
    },
    {
      id: 'code-expert',
      name: 'Code Expert',
      provider: 'anthropic',
      model: 'claude-sonnet-4-20250514',
      allowedTools: ['github:*'],
      plans: ['pro'],
    },
  ],
}

MCP Tools

External Tools

mcp: {
  servers: [
    {
      id: 'filesystem',
      transport: 'stdio',
      command: 'npx',
      args: ['-y', '@mcp/server-fs'],
    },
    {
      id: 'github',
      transport: 'streamable-http',
      url: 'https://mcp.github.com',
      authMode: 'user-oauth',
    },
  ],
}

Auth

Auth Methods

auth: {
  methods: [
    'email-password',
    'google',
    'github',
    'magic-link'
  ],
  emailVerification: {
    enabled: true,
    codeLength: 6,
  },
  magicLink: {
    enabled: true,
    expiresInMinutes: 15,
  },
}

Payments

Stripe Plans

payments: {
  enabled: true,
  provider: 'stripe',
  plans: [
    {
      id: 'free',
      name: 'Free',
      type: 'free',
      params: { monthlyMessageLimit: 20 },
    },
    {
      id: 'pro',
      name: 'Pro',
      type: 'subscription',
      params: {
        stripePriceId: 'price_...',
        monthlyLimit: 1000,
      },
    },
  ],
}

Theming

Tailwind Preset

// tailwind.config.ts
createChaaskitPreset({
  themes: {
    dark: {
      primary: '#dc2626',
      background: '#111111',
      sidebar: '#0a0a0a',
    },
    light: {
      primary: '#dc2626',
      background: '#ffffff',
    },
  },
  defaultTheme: 'dark',
  fonts: {
    sans: "'Inter', system-ui",
    mono: "'JetBrains Mono'",
  },
})

Integrations

Slack & Docs

slack: {
  enabled: true,
  aiChat: {
    enabled: true,
    threadContinuity: true,
  },
},
documents: {
  enabled: true,
  storage: { provider: 'database' },
  maxFileSizeMB: 10,
},
scheduledPrompts: {
  enabled: true,
  featureName: 'Automations',
},

All configuration sections available in app.config.ts

appuiauthagentmcppaymentsteamsprojectsdocumentssharingslackqueuescheduledPromptsapiadminemaillegaluserSettingspromptTemplates

Ready to build your AI app?

Start with the demo, explore the docs, or dive straight into the code.

Try the Demo Documentation

Build AI apps.Ship fast.