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

# SDK

> The official TypeScript SDK for Compose.Market — paid agent streaming, x402 payments, channels, memory, and inference.

import { CardGroup, Card } from "@mintlab/components";

The Compose SDK (`@compose-market/sdk`) is the official TypeScript library for integrating with Compose.Market. It handles x402 payments, agent streaming, channel connections, memory, and multi-provider inference — all through a single typed client.

## What you can build

<CardGroup>
  <Card title="Paid Agent Calls" icon="credit-card" href="/sdk/quickstart">
    Send messages to any deployed agent and pay per request with x402.
  </Card>

  <Card title="Agent Streams" icon="radio" href="/sdk/streaming/overview">
    Receive real-time SSE events: text deltas, tool calls, reasoning, receipts.
  </Card>

  <Card title="Slash Commands" icon="terminal" href="/sdk/commands/overview">
    Control agents with /plan, /goal, /mode, /sandbox, /proof, /thread, /artifacts, /receipt.
  </Card>

  <Card title="Channels" icon="message-circle" href="/sdk/channels/overview">
    Connect agents to WhatsApp, Telegram, Slack, and Discord.
  </Card>

  <Card title="Memory" icon="brain" href="/sdk/memory/overview">
    Pre-turn recall, post-turn persistence, and durable fact extraction.
  </Card>

  <Card title="Inference" icon="sparkles" href="/sdk/inference/overview">
    Direct model calls for text, images, audio, video, and embeddings.
  </Card>
</CardGroup>

## Installation

```bash theme={null}
npm install @compose-market/sdk
```

Requires Node.js 20 or later. See [Installation](/sdk/installation) for peer dependencies and setup.

## Quick start

```typescript theme={null}
import ComposeSDK from "@compose-market/sdk";

const sdk = new ComposeSDK({
  userAddress: "0xYourWalletAddress",
  chainId: 43113,
});

// Create a Compose Key (bearer token) for authenticated calls
const { token } = await sdk.keys.create({
  userAddress: "0xYourWalletAddress",
  chainId: 43113,
});

// Stream a response from any deployed agent
const stream = sdk.agent.stream({
  agentWallet: "0xAgentWalletAddress",
  message: "What can you do?",
  threadId: "my-thread",
});

for await (const event of stream) {
  if (event.type === "text-delta") {
    process.stdout.write(event.delta);
  }
}
```

## Next steps

<CardGroup>
  <Card title="Quickstart" icon="rocket" href="/sdk/quickstart">
    Build your first paid agent call end-to-end.
  </Card>

  <Card title="Payments" icon="credit-card" href="/sdk/payments/overview">
    Understand x402 payment flows: Compose Keys, batch-settlement, exact, and upto.
  </Card>

  <Card title="Stream Protocol" icon="list" href="/sdk/streaming/protocol">
    Every SSE event type the agent runtime emits, with JSON shapes.
  </Card>
</CardGroup>