Claude Agent SDK
Product by Anthropic
The agent loop behind Claude Code as a TypeScript and Python library, with tools, skills, MCP and subagents.
Alternatives to Claude Agent SDK
Ranked by category and the features they share with Claude Agent SDK.
- CrewAI CrewAI
An open source Python framework for teams of AI agents with roles, plus a hosted platform.
Free plan + paid Open source APImulti-agentagent framework Claude Agent SDK vs CrewAI - LangChain LangChain
Open source frameworks for LLM apps and agents (LangChain, LangGraph) plus LangSmith for tracing.
Free Open source APIagent framework Claude Agent SDK vs LangChain - Zapier Zapier
Connects thousands of apps with automations and AI agents, no code needed.
Free plan + paid API - n8n n8n
Workflow automation with AI agent steps, self-hostable under a fair-code licence.
Free plan + paid Open source API - Make Make (Celonis)
Visual workflow automation with AI agents, built as flowcharts of app modules.
Free plan + paid API - Manus Manus
A general AI agent that researches, browses and builds things in its own cloud computer.
Free plan + paid API - Claude Code Anthropic
Anthropic’s coding agent: it reads your codebase, edits files, runs commands and opens PRs, in the terminal, IDE, desktop and web.
Paid APIskillsmcp Claude Agent SDK vs Claude Code - OpenAI Codex OpenAI
OpenAI’s coding agent, in ChatGPT, a terminal CLI and IDE extensions, that works on tasks in the cloud or locally.
Paid Open source API - Devin Cognition
An autonomous software engineer that takes tickets, works in its own cloud environment and opens pull requests.
Paid API - Claude API Anthropic
Claude models for developers, with tool use, prompt caching, batches and skills; also on AWS, Google Cloud and Azure.
Pay per use APIskillsmcp Claude Agent SDK vs Claude API