Learn to Build AI Agents

What is the Agents SDK?

Understand what the Claude Agents SDK is and see it in action with an interactive code example.

Quickstart

Set up your environment and build your first AI agent in minutes.

The Agent SDK

Deep dive into the core functions: query(), tool(), and createSdkMcpServer().

Types

TypeScript type definitions including Options, McpServerConfig, and more.

Capabilities

Explore built-in tools, hooks, subagents, MCP, permissions, and sessions.

Claude Code Features

Learn about skills, slash commands, memory, and plugins.

Get Started

Step-by-step setup guide and comparison with other Claude tools.

Tools

Tool Outputs & Permissions

Other Types

Streaming Input

Configure Permissions

Control how your agent uses tools with permission modes, hooks, and allow/deny rules.

Handle Approvals & User Input

Surface Claude's approval requests and clarifying questions to users.

Control Execution with Hooks

Intercept and control tool execution with pre and post tool use hooks.

Structured Outputs

Get typed, validated responses using JSON schemas and Zod.

Session Management

Continue conversations across interactions with session resumption and forking.

File Checkpointing

Track file changes during agent sessions and restore files to any previous state.