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

# Installation

> Install the Steward SDK for TypeScript/JavaScript.

# Installation

The `@stwd/sdk` package provides a typed client for the Steward API with zero dependencies.

## Install

<CodeGroup>
  ```bash npm theme={null}
  npm install @stwd/sdk
  ```

  ```bash pnpm theme={null}
  pnpm add @stwd/sdk
  ```

  ```bash yarn theme={null}
  yarn add @stwd/sdk
  ```

  ```bash bun theme={null}
  bun add @stwd/sdk
  ```
</CodeGroup>

## Requirements

* **Runtime:** Node.js 18+, Bun 1.0+, Deno, or any environment with `fetch()`
* **TypeScript:** 5.0+ (optional but recommended)
* **Dependencies:** None — zero external dependencies

## Quick Setup

```typescript theme={null}
import { StewardClient } from "@stwd/sdk";

// Tenant-level client (for management operations)
const steward = new StewardClient({
  baseUrl: "https://api.steward.fi",
  apiKey: "stwd_your_tenant_api_key",
});

// Agent-level client (for signing operations)
const agentClient = new StewardClient({
  baseUrl: "https://api.steward.fi",
  bearerToken: process.env.STEWARD_AGENT_TOKEN,
});
```

## Package Contents

The SDK exports:

| Export            | Description                                           |
| ----------------- | ----------------------------------------------------- |
| `StewardClient`   | Main API client class                                 |
| `StewardApiError` | Typed error class with status code and response data  |
| Types             | Full TypeScript types for all request/response shapes |

```typescript theme={null}
import {
  StewardClient,
  StewardApiError,
  type StewardClientConfig,
  type SignTransactionInput,
  type SignTypedDataInput,
  type SignSolanaTransactionInput,
  type PolicyRule,
  type AgentIdentity,
} from "@stwd/sdk";
```

## Environment Variables

Common environment variables used with the SDK:

```bash theme={null}
STEWARD_API_URL=https://api.steward.fi    # API base URL
STEWARD_API_KEY=stwd_your_tenant_key       # Tenant API key
STEWARD_AGENT_TOKEN=stwd_jwt_...           # Agent JWT token
STEWARD_AGENT_ID=my-agent                  # Agent identifier
STEWARD_PROXY_URL=http://steward-proxy:8080 # Proxy URL (for containers)
```

## Published Packages

| Package              | Version | Description                |
| -------------------- | ------- | -------------------------- |
| `@stwd/sdk`          | 0.3.0   | TypeScript SDK client      |
| `@stwd/eliza-plugin` | 0.2.0   | ElizaOS integration plugin |

## Next Steps

* [StewardClient Reference](/sdk/client) — Full API reference
* [Quickstart](/quickstart) — Get started in 5 minutes
* [ElizaOS Plugin](/sdk/eliza-plugin) — Drop-in ElizaOS integration