Skip to content
Claude Agent SDK

Claude Agent SDK

Independent TypeScript SDK for agent loops, tools, permissions, and streaming events.
Get startedPublic API

What it gives you

Section titled “What it gives you”

Agent loop

Maintains conversation state, calls an Anthropic-compatible model, runs tools, and feeds results back to the model.

Custom tools

Define tools with Zod schemas, parsed inputs, typed handlers, and model-ready JSON Schema.

Permission callbacks

Approve or deny tool calls before execution, including shell and file operations.

Stable events

Consume system, assistant, user, stream_event, and result messages.

Package

Section titled “Package”
Terminal window
npm install @npm-while1/claude-agent-sdk zod

The SDK is intentionally independent from Claude Code. It does not require the Claude Code CLI, Ink UI, session storage, MCP runtime, or app runtime.