What are the best Python coding agents?

By maintained adoption — GitHub stars plus recent commit activity — Skill_Seekers, openevolve and semble lead the Python coding agents in this index of 11. The full ranking is below; it reflects what is genuinely used and still maintained, not what pays.

Are these Python coding agents open source and free?

Yes — every project on this page is open source and written primarily in Python. MIT is the most common licence here, on 6 of 11, across 2 licences in total. The software is free to run and self-host; you still pay for the infrastructure you run it on and any model or API usage it makes.

Why choose Python coding agents specifically?

Staying in your team's primary language — Python — makes self-hosting, extending, and debugging far easier, because you can read and modify the source directly instead of treating it as a black box.

Open source · Python

Best Python coding agents

The 11 open-source coding agents written in Python in this index, ranked by real maintained adoption (GitHub stars and recent commit activity), never by sponsorship. Skill_Seekers leads the set at 15,040 GitHub stars, and 11 of the 11 have shipped a commit in the last 90 days. Every project here is Python-first, self-hostable, and free to run; the trade-off is you host and maintain it yourself. Right now it's led by Skill_Seekers (15k stars), with openevolve and semble close behind. Rankings shift as projects gain stars and ship commits.

11 open-source records · all coding agents · more best-of lists · how we rank

Skill_SeekersSDK / libraryConvert documentation websites, GitHub repositories, and PDFs into Claude AI skills with automatic conflict detectionOpen sourcePython · MITVerified · Active 15kGitHub stars openevolveAgentOpen-source implementation of AlphaEvolveOpen sourcePython · Apache-2.0Verified · Active 7.5kGitHub stars sembleSDK / libraryFast and Accurate Code Search for Agents. Uses ~98% fewer tokens than grep+readOpen sourcePython · MITVerified · Active 6.2kGitHub stars agents-cliAgentThe CLI and skills that turn any coding assistant into an expert at creating, evaluating, and deploying AI agents on Google Cloud.Open sourcePython · Apache-2.0Verified · Active 6.0kGitHub stars gptmeAgentA provider-agnostic personal AI agent for the terminal, with shell, Python, web and vision tools.Open sourcePython · MITVerified · Active 4.4kGitHub stars claude_codex_bridgeAgentVisible multi-agent CLI workspace for mixing Codex, Claude, Gemini, Kimi, Qwen, Cursor, Copilot, Pi, OpenCode, and other AI coding agentsOpen sourcePythonVerified · Active 3.5kGitHub stars teaql-agent-kitSDK / libraryDeterministic execution for non-deterministic AI.Open sourcePython · MITVerified · Active 2.8kGitHub stars cocoindex-codeSDK / libraryA super light-weight embedded code search engine CLI (AST based) that just works - saves 70% token and improves speed for coding agent Star if you like it!Open sourcePython · Apache-2.0Verified · Active 2.7kGitHub stars CoreCoderAgentMinimal AI coding agent (~1,000 lines of Python) inspired by Claude Code. Works with any LLM. Think NanoGPT for coding agents. Formerly NanoCoder.Open sourcePython · MITVerified · Active 1.8kGitHub stars spec_driven_developAgentSpec-driven development workflow for AI coding agents: architecture-first planning, task decomposition, GitHub Issue/PR tracking, Deep Discuss, and adaptive control for Claude Code, Codex, Cursor,Open sourcePython · MITVerified 975GitHub stars openyakAgentOpen-source local-first AI agent for desktop work. No account, no telemetry: use local models with Ollama/Rapid-MLX or bring your own provider key.Open sourcePython · Apache-2.0Verified · Active 703GitHub stars

Frequently asked

What are the best Python coding agents?: By maintained adoption — GitHub stars plus recent commit activity — Skill_Seekers, openevolve and semble lead the Python coding agents in this index of 11. The full ranking is below; it reflects what is genuinely used and still maintained, not what pays.
Are these Python coding agents open source and free?: Yes — every project on this page is open source and written primarily in Python. MIT is the most common licence here, on 6 of 11, across 2 licences in total. The software is free to run and self-host; you still pay for the infrastructure you run it on and any model or API usage it makes.
Why choose Python coding agents specifically?: Staying in your team's primary language — Python — makes self-hosting, extending, and debugging far easier, because you can read and modify the source directly instead of treating it as a black box.