Open Agent SDK Python — Development skill for Claude Code

Open Agent SDK (Python)

[](https://pypi.org/project/open-agent-sdk/) [](https://python.org) [](./LICENSE)

Open-source Agent SDK that runs the full agent loop **in-process** — no subprocess or CLI required. Deploy anywhere: cloud, serverless, Docker, CI/CD.

Also available in **TypeScript**: [open-agent-sdk-typescript](https://github.com/codeany-ai/open-agent-sdk-typescript) · **Go**: [open-agent-sdk-go](https://github.com/codeany-ai/open-agent-sdk-go)

Features

• Multi-Provider — Anthropic + OpenAI-compatible APIs (DeepSeek, Qwen, vLLM, Ollama) via unified provider abstraction
• Agent Loop — Streaming agentic loop with tool execution, multi-turn conversations, and cost tracking
• 35 Built-in Tools — Bash, Read, Write, Edit, Glob, Grep, WebFetch, WebSearch, Agent (subagents), Skill, and more
• Skill System — Reusable prompt templates with 5 bundled skills (commit, review, debug, simplify, test)
• MCP Support — Connect to MCP servers via stdio, HTTP, and SSE transports
• Permission System — Configurable tool approval with allow/deny rules and custom callbacks
• Hook System — 20 lifecycle events for agent behavior interception
• Session Persistence — Save/load/fork conversation sessions
• Custom Tools — Define tools with Pydantic models or raw JSON schemas
• Extended Thinking — Claude thinking budget configuration
• Cost Tracking — Per-model token usage with accurate pricing (Anthropic + OpenAI + DeepSeek + Qwen)

Get started

pip install open-agent-sdk

Set your API key:

export CODEANY_API_KEY=your-api-key

Third-party providers (e.g. OpenRouter) are supported via `CODEANY_BASE_URL`:

export CODEANY_BASE_URL=https://openrouter.ai/api
export CODEANY_API_KEY=sk-or-...
export CODEANY_MODEL=anthro