Zerg Client is a terminal coding agent. A coding agent harness for developers: a TypeScript agent plans, edits and tests your code while a native Rust layer draws the screen — the agent opens and drives its own terminal panes (zmux), and panes can hold more agents, each on its own model. Terminal, desktop app or headless. If it isn't the right fit, here are the other terminal coding agents we track, with a dedicated profile and sourced pricing. Last checked 2026-11-07.
Command-line tool for agentic coding that lets developers delegate substantial engineering tasks to Claude from the terminal; later added VS Code and JetBrains integrations and an SDK. source
Open-source (Apache-2.0) coding agent from OpenAI that runs on your machine. Sign in with ChatGPT or use an API key; also available as IDE extension, desktop app and cloud agent. source
Open-source (Apache-2.0) AI agent for the terminal: coding, research and task automation with Gemini models and MCP tools. source
Open-source autonomous coding agent (VS Code extension and more). Plans, then edits files and runs commands with your approval, using any model provider. source
Autonomous AI software engineer from Cognition: give it a task and it plans, codes, tests and opens pull requests, in the cloud or via Devin Desktop/CLI. source
Terminal rebuilt as an agentic development environment: run multiple coding agents, review diffs and edit code alongside your shell. source
Open-source AI pair programming in your terminal, git-aware. source
Google's asynchronous coding agent that works on your GitHub repos. source
Open-source AI coding agent for the terminal, desktop and IDE; bring any model (Claude, GPT, Gemini, local) or use its free models. source
Other terminal / coding agents we track: Claude Code, Codex CLI, Gemini CLI, Cline, Devin, Warp, Aider, Jules, OpenCode.
These alternatives list a free tier or free plan: Codex CLI, Cline, Devin, Warp, Aider, Jules, OpenCode. Limits vary; check each official pricing page.
Open-source options in this category: Codex CLI, Gemini CLI, Cline, Aider, OpenCode.
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