> ## Documentation Index
> Fetch the complete documentation index at: https://docs.capx.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Capx Compose provides production-ready plugins that add specific functionality to your Next.js project. Each plugin includes working examples, proper configuration, and all necessary dependencies.

# Available Plugins

## AI

<Card title="vercel-ai" icon="robot" href="/capx-compose/plugins/vercel-ai" arrow="true" cta="Know more">
  Streaming AI chat with Vercel AI SDK
</Card>

## Dev Kits

<CardGroup cols={2}>
  <Card title="goat" icon="dungeon" href="/capx-compose/plugins/goat" arrow="true" cta="Know more">
    Autonomous agents with blockchain capabilities
  </Card>

  <Card title="solana-agent-kit" icon="suitcase" href="/capx-compose/plugins/solana-agent" arrow="true" cta="Know more">
    Solana-specific agent framework
  </Card>
</CardGroup>

## Blockchain

<CardGroup cols={3}>
  <Card title="Solana" icon="jet-fighter" href="/capx-compose/plugins/solana" arrow="true" cta="Know more">
    Solana wallet and dApp development
  </Card>

  <Card title="EVM" icon="truck-fast" href="/capx-compose/plugins/evm" arrow="true" cta="Know more">
    Ethereum and EVM-compatible chains
  </Card>

  <Card title="Sui" icon="dragon" href="/capx-compose/plugins/sui" arrow="true" cta="Know more">
    Sui blockchain with Move contracts
  </Card>
</CardGroup>

## Authentication

<Card title="privy" icon="key" href="/capx-compose/plugins/privy" arrow="true" cta="Know more">
  Web3 authentication
</Card>

## Data & Backend

<CardGroup cols={3}>
  <Card title="Supabase" icon="bolt-lightning" href="/capx-compose/plugins/supabase" arrow="true" cta="Know more">
    PostgreSQL with real-time and auth
  </Card>

  <Card title="Firebase" icon="fire" href="/capx-compose/plugins/firebase" arrow="true" cta="Know more">
    NoSQL database and Firebase services
  </Card>

  <Card title="vercel-kv" icon="database" href="/capx-compose/plugins/vercel-kv" arrow="true" cta="Know more">
    Redis-compatible key-value storage
  </Card>
</CardGroup>

## Plugin Features

Each plugin provides:

#### 📁 Complete File Structure

* Working example pages
* API routes (if needed)
* Utility functions
* Type definitions

#### 📦 Dependencies

* Production packages
* Development tools
* Type definitions
* Peer dependencies

#### 🔧 Configuration

* Environment variables template
* Config files
* Build settings
* TypeScript types

#### 📚 Documentation

* README with setup instructions
* Code comments
* Usage examples
* Best practices

## Environment Variables

Each plugin requires specific environment variables:

### AI & Dev-Kit Plugins

```env theme={null}
# vercel-ai, goat
OPENAI_API_KEY=sk-...

# goat specific
GOAT_CHAIN=evm
WALLET_PRIVATE_KEY=0x...
RPC_PROVIDER_URL=https://...
```

### Blockchain Plugins

```env theme={null}
# solana
NEXT_PUBLIC_SOLANA_NETWORK=devnet
NEXT_PUBLIC_RPC_ENDPOINT=https://api.devnet.solana.com

# evm
NEXT_PUBLIC_ETHEREUM_NETWORK=sepolia
NEXT_PUBLIC_INFURA_PROJECT_ID=...

# privy
NEXT_PUBLIC_PRIVY_APP_ID=...
```

### Data & Backend Plugins

```env theme={null}
# supabase
NEXT_PUBLIC_SUPABASE_URL=...
NEXT_PUBLIC_SUPABASE_ANON_KEY=...

# firebase
NEXT_PUBLIC_FIREBASE_API_KEY=...
NEXT_PUBLIC_FIREBASE_PROJECT_ID=...

# vercel-kv
KV_REST_API_URL=...
KV_REST_API_TOKEN=...
```

## Choosing Plugins

### For AI Applications

* Start with `vercel-ai` for chat interfaces
* Add `supabase` or `firebase` for data persistence
* Use `vercel-kv` for caching

### For Web3 Applications

* Choose your blockchain: `solana`, `evm`, or `sui`
* Add `privy` for user authentication
* Include `firebase` or `supabase` for off-chain data

### For AI + Web3

* Use `goat` for EVM/Solana AI agents
* Use `solana-agent-kit` for Solana-specific agents
* Combine with databases for persistence