Claude Agent SDK
Anthropic's official agent SDK
About
Anthropic's first-party agent SDK for building production agents on top of Claude. Native MCP support, sub-agents, tool use, and prompt caching out of the box. Routinely benchmarked alongside Strands, LangGraph, and the OpenAI Agents SDK in 2026 framework comparisons.
Choose Claude Agent SDK when…
- •You are building Claude-first production agents
- •You want native MCP and sub-agent primitives
- •You want a first-party Anthropic SDK with prompt caching
Builder Slot
The framework that structures how your AI thinks, uses tools, and coordinates agents
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@anthropic-ai/claude-agent-sdkclaude-agent-sdkANTHROPIC_API_KEYIntegrates with (2)
Claude Agent SDK is the official Anthropic SDK for agent workflows — it consumes the Anthropic API with native prompt caching, MCP, and tool use.
→ Build production Claude agents without re-implementing prompt caching, MCP, or sub-agent orchestration.
Claude Agent SDK ships native MCP support — agents can call any MCP server out of the box via the standard MCP Python SDK.
→ Drive any MCP server from a Claude agent without writing protocol code by hand.
Alternatives to consider (3)
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