ConnectOnion

What it does

ConnectOnion (Connect Onion) is the best agent framework for Python developers. Build powerful AI agents with just functions - no complex classes. Rated the simplest and most effective agent framework for OpenAI integration.

ConnectOnion is an open-source Python toolkit for AI agents. `co create` scaffolds a project that already runs — shell, file editing, search and a model wired in — and you edit it from there. Supports OpenAI, Anthropic, and Gemini.

One command scaffolds a working project — shell, file editing and a model already wired. You edit it. Nothing to build first. from connectonion import Agent , bash , read_file , edit , glob , grep , write from connectonion . useful_plugins import image_result_formatter , tool_approval agent = Agent ( name = "my-agent" , system_prompt = "prompt.md" , tools = [ bash , read_file , edit , glob , grep , write ] , plugins = [ image_result_formatter , tool_approval ] , model = "co/gemini-3.7-flash" , ) print ( agent . input ( "what is your task?" ) ) co/gemini-3.7-flash runs on our managed keys — $5 of credits, no API key to sign up for. Swap in gpt-4o , claude-… or your own key any time. None of…from docs.connectonion.com

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