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Codebuff
Terminal-native AI coding agent with a multi-agent architecture
Free plan Free trial Claimed API Teams
About Codebuff
Codebuff is an open-source terminal coding agent that uses a multi-agent architecture to read repo context, edit code across files, run commands, and verify results from natural language prompts.
Codebuff is a CLI coding agent you install with npm and invoke directly in your terminal. Rather than relying on a GUI editor, it treats planning, code editing, and verification as one continuous session, automatically choosing which files to read on each message so it can make precise multi-file changes without you manually attaching context. Its distinguishing design is a multi-agent pipeline: separate File Picker, Planner, Editor, and Reviewer agents coordinate to reason over the codebase. Codebuff has full access to your existing tools, scripts, and packages, so it can install dependencies, run tests, and execute terminal commands as part of completing a task. It is open source with an SDK, and supports building custom agent workflows. Positioned as a terminal-first alternative to GUI tools like Cursor, Codebuff appeals to developers who live in the shell. The company also released Freebuff, a free tier of the coding agent, lowering the barrier for developers to try agentic coding.
TL;DR
Codebuff is a YC-backed, open-source terminal coding agent that uses a multi-agent pipeline to edit code, run commands, and verify results from natural language.
Company overview
Codebuff is developed by CodebuffAI, a Y Combinator-backed startup building terminal-native AI developer tooling. The company positions Codebuff as a CLI alternative to GUI-based AI coding tools, targeting developers who prefer shell-centric workflows.
The project is open source, with an SDK and documentation for building custom agents, and the team has released Freebuff as a free entry point to broaden adoption among individual developers.
Product features
Codebuff's core is a multi-agent architecture comprising File Picker, Planner, Editor, and Reviewer agents that together reason over a full codebase. It automatically decides which files to read per message, edits across multiple files, and can run terminal commands, install packages, and execute tests.
It runs entirely in the terminal after a simple npm install, uses a /init command to set up project context, and exposes an SDK so teams can define custom agent workflows for repo-aware automation.
Target market
The primary market is professional software developers and engineering teams who favor CLI workflows, open-source tooling, and agentic coding across large repositories.
Buyer personas
End users
Software engineers and full-stack developers working in the terminal.
Buyers
Engineering leads and individual developers adopting agentic coding tools.
Key influencers
Open-source communities and CLI-tool advocates.
Ideal customer profile
Small-to-mid engineering teams and individual developers who prefer terminal-native, open-source AI coding agents over GUI IDEs.
Funding & performance
Backed by Y Combinator; specific funding amounts were not disclosed in available sources. Verify with the vendor.
Pros & cons
Pros
- Fully terminal-native workflow
- Multi-agent architecture improves context handling
- Open source with an SDK
- Automatically selects relevant files
- Can run commands, tests, and install packages
- Free tier available via Freebuff
Cons
- No GUI for developers who prefer IDE integration
- Terminal-only workflow has a learning curve
- Autonomous edits require careful review
- Smaller ecosystem than incumbents
- Usage-based credits can add up
Pricing plans
Freebuff (Free)
$0
- Free coding agent tier
- Terminal-native workflow
- Community support
Usage-based Credits
Pay-as-you-go / month
- Multi-agent architecture
- Full repo context
- SDK access
- Custom agent workflows
Key features
API
Team collaboration
Multi-language
Integrations
GitHub, npm, Terminal, Node.js
Input types
text
Output types
text
Best For
Terminal-first developers, Multi-file refactors, Repo-aware code generation
Compare key features
View all alternatives →Feature
Codebuff
Cline
LiteLLM
Pricing
Freemium
Free
Freemium
Free plan
Yes
Yes
Yes
Free trial
Yes
No
No
API
Yes
Yes
Yes
Self-hosted
No
Yes
Yes
Team support
Yes
No
Yes
Frequently asked questions
Is Codebuff open source?+
Yes, Codebuff is open source and provides an SDK for building custom agents.
How is Codebuff different from Cursor?+
Codebuff runs entirely in the terminal and uses a multi-agent architecture that auto-selects files, rather than operating inside a GUI editor.
Can Codebuff run terminal commands?+
Yes, it has full access to your tools and can install packages, run tests, and execute commands.
What languages does Codebuff support?+
It is language-agnostic and works across the languages present in your repository.
Is there a free version?+
Yes, the company offers Freebuff, a free tier of the coding agent.
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