Coding / Developer

Zazen (Freebuff fork)

Zazen (Freebuff fork) is a free AI coding agent tool installed globally via npm.

Product type: Desktop AppPricing: UnknownAPIMaster integration: Supported

Website created

2000-03-20

OpenRouter token usage rank

Source: OpenRouter

Monthly unique visitors

315,677

Source: SimilarWeb

Website Download / Install GitHub

Overview

This product is positioned as a coding agent that runs from the command line, mainly installed via npm install -g freebuff and then used in the terminal. Users can directly call it to handle code-related tasks, with support for models such as DeepSeek V4 Pro and Flash without requiring a paid subscription. Its core strength is providing an AI-assisted development workflow without subscription restrictions, making it suitable for developers who do not want to rely on paid services. Compared with similar products, it emphasizes being completely free and available in CLI form immediately after installation, avoiding extra dependencies on web apps or IDE plugins.

One-line summary

Zazen (Freebuff fork) is a free AI coding agent tool installed globally via npm.

What people use it for

After installation, users run freebuff in the terminal to generate or modify code. Developers use it in daily work to assist with programming tasks without paying.

Best for

General assistant users and multi-scenario workflow users

How it works

Users typically enter the product first through the command line, IDE, or desktop app, then complete work through multi-step task planning and tool invocation.

Quick facts

Product type

Desktop App

Pricing

Unknown

The current enhanced batch dataset does not maintain real-time pricing for this product. Please refer to the official website or official documentation.

APIMaster integration

Supported

Provider / Proxy / API Settings

Data confidence

Medium

Last verified: 2026-08-30

Supported models / APIs

AnthropicThird-party ProviderBYOK

Core features and differentiators

Launch from the terminal command line

After global installation via npm, run the freebuff command directly in the project directory to start

Read and edit project files

Directly access and modify all files in the local codebase

Run system commands

Run shell commands in the terminal, install dependencies, or build projects

Web information retrieval

Automatically search web content during work to assist development

Support for switching between multiple models

Supports switching between models such as DeepSeek V4 Pro and Kimi K2.7 Code

Full project building

Generate and iterate on complete code projects from scratch

What is Zazen (Freebuff fork) best for?

Iterate on features in the terminal

Start freebuff and let it read the repository, write code for new features, and run tests

Best for：Full-stack developers

Quickly bootstrap a new project

Run freebuff in an empty directory and describe the requirements to generate a complete runnable project

Best for：Indie developers

Perform code review and modification

Have the tool analyze an existing codebase and automatically fix issues or add features

Best for：Backend engineers

Plan with Zazen and execute with Freebuff

Use Zazen to plan changes, then switch to Freebuff Desktop to carry out specific code modifications

Best for：AI-assisted programming users

Third-party key setup for Zazen (Freebuff fork) (APIMaster integration)

Supported

Setup steps

1First, look inside the product for Provider, Proxy, API Settings, Model Provider, Add provider, or a similar entry point.
2Confirm whether it allows you to enter a third-party API Key, Base URL, Proxy URL, or custom endpoint.
3If those fields exist, then enter APIMaster as a compatible third-party endpoint in the appropriate place.
4Finally, select the model name or mapping method supported by the product, and verify the connection with a minimal test request.

Config values

Base URL

https://apimaster.ai/v1

API key environment variable

APIMASTER_API_KEY

Model

Your APIMaster model ID

Create my key

Official source APIMaster API docs

Community discussion

Discussion summary

Users generally understand Zazen (Freebuff fork) as a free terminal-based AI coding agent tool that can directly read and edit files and execute commands, using open-source models such as DeepSeek for code generation and modification. Discussion focuses on how to integrate it into daily development workflows, how the experience compares with paid tools such as Claude Code or Cursor, and practical usage scenarios after installation and configuration. Users are especially interested in its zero-subscription-cost advantage, while also mentioning interaction details of the CLI interface and desktop version as well as model selection questions.

Most discussed topics

1
How can Zazen/Freebuff be integrated into existing development workflows?
Users often discuss how to combine Zazen with other AI tools, such as ZCode for planning plus Freebuff for execution, to improve overall indie dev productivity, or how to run the freebuff command directly in the terminal to handle projects.
2
How does Zazen/Freebuff compare with paid tools such as Claude Code and Cursor?
Users frequently compare the performance, speed, and feature completeness of its free models, such as DeepSeek V4 Pro and Kimi K2.7 Code, and discuss whether it can serve as a zero-cost alternative.
3
How do you install and start using Zazen/Freebuff?
Users share the installation steps for npm install -g freebuff, and explain how, after running the freebuff command in the project directory, they have the AI read files, execute commands, or build complete projects.
4
Which models does Zazen/Freebuff support and how should they be chosen?
Users discuss the available model list, such as DeepSeek, MiniMax, and MiMo, and how to switch models based on task requirements to optimize code generation or review results.
5
What is the interface and ad experience like in Zazen/Freebuff?
Users give feedback on the CLI and desktop interaction experience, mention text ads as the tradeoff for free use, and discuss the convenience of integration with IDEs such as VS Code.

FAQ

What type of product is Zazen (Freebuff fork)?

We currently place it in the "Programming / Development" category, and the page description is based on public information from the official website and sources such as OpenRouter.

What is Zazen (Freebuff fork) suitable for?

The enhanced page for Zazen (Freebuff fork) prioritizes the core tasks and use cases we have collected, helping you quickly judge whether it matches your current needs.

Can Zazen (Freebuff fork) connect directly to APIMaster now?

Current information confirms that the product supports a third-party Key or custom compatible endpoint, so you can proceed directly according to the configuration instructions on the page.

Last verified: 2026-08-30 · Report a correction