> For the complete documentation index, see [llms.txt](https://docs.yo.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yo.xyz/integrations/integration-guides/sdk/getting-started/installation.md).

# Installation

## Core Package

The core SDK works in any JavaScript environment — Node.js, browsers, serverless, or scripts.

```bash
pnpm add @yo-protocol/core viem
```

```bash
npm install @yo-protocol/core viem
```

```bash
yarn add @yo-protocol/core viem
```

| Dependency          | Purpose                                                          |
| ------------------- | ---------------------------------------------------------------- |
| `@yo-protocol/core` | Client, vault reads, actions, API client, constants              |
| `viem`              | Low-level EVM interaction (contract calls, encoding, transports) |

{% hint style="info" %}
**Zod included**

`@yo-protocol/core` bundles `zod` internally for runtime validation of API responses. You do not need to install it separately.
{% endhint %}

## React Package

For React apps using wagmi and TanStack Query:

```bash
pnpm add @yo-protocol/react @yo-protocol/core viem wagmi @tanstack/react-query
```

```bash
npm install @yo-protocol/react @yo-protocol/core viem wagmi @tanstack/react-query
```

```bash
yarn add @yo-protocol/react @yo-protocol/core viem wagmi @tanstack/react-query
```

### Peer Dependencies

| Package                 | Minimum version |
| ----------------------- | --------------- |
| `react`                 | 18.0.0          |
| `react-dom`             | 18.0.0          |
| `wagmi`                 | 2.0.0           |
| `viem`                  | 2.0.0           |
| `@tanstack/react-query` | 5.0.0           |

## TypeScript

Both packages ship with full TypeScript declarations. TypeScript 5.0+ is recommended but not required — the SDK works fine in plain JavaScript.

## Verify Installation

```ts
import { createYoClient } from '@yo-protocol/core'

const client = createYoClient({ chainId: 8453 })
const vaults = client.getVaults()

console.log(`Found ${vaults.length} vaults on Base`)
```

## Next Steps

* [Quick Start](broken://pages/cc26cc2ce5c3e110ce4caca32b7a263168920bd6) — Build your first integration
* [@yo-protocol/core Overview](file:///3007190/core/overview.md) — Core SDK reference
* [@yo-protocol/react Overview](file:///3007190/react/overview.md) — React hooks reference


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