Goose

AI CodingBlock (Square) - est. 2024

The free, open-source AI coding agent you run yourself

4.2 / 5Free plan availableVerified review
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Reviewed Jun 2026

Editorial take

Goose gives you Claude Code-level agentic capabilities for free, provided you are comfortable in the terminal and have your own API keys. Built by Block and open-source under Apache 2.0, it is the best free alternative to paid coding agents for developers who want full autonomy without a monthly subscription.

What is Goose?

Goose is an open-source agentic coding tool built by Block (the company behind Square and Cash App). Like Claude Code, it can read your codebase, write files, run terminal commands, and reason over your entire project. Unlike Claude Code, it's free - you provide your own API keys and run it locally.

Goose supports multiple AI providers including Anthropic (Claude), OpenAI (GPT-4o), and local models. The tool lives in your terminal and can autonomously execute multi-step development tasks: setting up projects, refactoring code, running tests, fixing bugs, and generating documentation. Because it runs locally, your code never leaves your machine unless you choose a cloud AI provider.

For developers who want Claude Code-level capabilities without the subscription cost, Goose is the most capable free alternative available. The tradeoff: it requires comfort with the terminal and some setup effort.

Best for

Developers comfortable with the terminal who want agentic coding capabilities without subscription costs

Key strength

Full agentic coding capabilities for free

Output Quality0.0Integration0.0Value0.0Ease of Use3.0Free Tier0.0

Score breakdown (out of 5)

What you would use it for

  • Running multi-file coding tasks autonomously without a paid agent subscription
  • Choosing any AI model (Claude, GPT-4o, local Ollama) as the backend for agentic tasks
  • Keeping code on your machine by running the agent entirely locally
  • Automating repetitive development tasks like schema migrations or scaffolding
  • Setting up and running tests as part of a complete agentic development session

Pros & Cons

👍 Pros

  • Completely free - only pay for API usage
  • Code stays on your machine by default
  • Supports multiple AI providers
  • Active development by Block engineering team
  • No subscription required

👎 Cons

  • Requires terminal comfort and setup
  • API costs accumulate on large tasks
  • No GUI - terminal only
  • Less polished UX than commercial tools

Key Features

  • Terminal-based agentic coding agent
  • Reads and edits entire codebases
  • Runs shell commands autonomously
  • Supports Anthropic Claude, OpenAI, Ollama
  • Local execution - no cloud dependency
  • Open source (Apache 2.0 license)

Available on

MacWindowsLinuxCLI

Integrates with

Anthropic Claude (API)OpenAI GPT-4o (API)Ollama (local models)GitHub (git operations)Shell environment (arbitrary commands)

Goose Pricing

Goose has a free plan - no credit card required to start.

Open Source

Free/forever
  • Full agentic coding capabilities
  • Bring your own API keys
  • Supports Claude, GPT-4o, local models
  • Runs locally - code stays on your machine
  • Multi-file editing and terminal commands
  • Active open-source community
Get Open Source

Goose vs Competitors

AI models powering Goose

From the blog

Developer resources

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