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Goose in brief
A solid CLI agent signed by Block (Square), with native MCP support and a serious open source approach. A direct competitor to Claude Code for developers who prefer to stay open source.
- PriceFree
- CategoryMCP & connectors
- RecommendedYes
The essentials
- Open source CLI agent developed by Block (Jack Dorsey's company)
- Free, BYOK, native MCP support
- Can execute coding tasks, browse the web, interact with APIs
- Open source alternative to Claude Code with multi-LLM support
What is Goose?
Goose is a command-line AI agent developed by Block (ex-Square). The proposition: a generalist open source agent that can code, browse, interact with tools, all via the MCP protocol. You provide your own API key (OpenAI, Anthropic or other), Goose handles orchestrating the tasks. The fact that it's signed by Block gives it credibility that hobbyist projects don't have. Its native MCP protocol support makes it a particularly interesting tool in a growing MCP ecosystem.
Strengths
First-class native MCP support
Goose integrates the Model Context Protocol natively, allowing it to plug in tools, data servers and capabilities via any compatible MCP server.
Institutional credibility
Developed and maintained by Block, a real tech company. The project's longevity is more assured than one-man-show forks.
Free and open source
No subscription. The code is open. BYOK to choose your model.
Limits
Less documentation than Aider or Claude Code
The ecosystem around Goose is less rich than older tools like Aider.
Pure CLI experience
No integrated graphical interface. Entirely reserved for technical profiles.
Pricing
Free, open source. API costs depend on the chosen model. Available at block.github.io.
Alternatives
Goose = open source MCP CLI agent. Claude Code alternative (claude.com) = $18/month, more integrated. Aider alternative (aider.chat) = free, pioneer of the genre. Plandex alternative (plandex.ai) = free, focus on large projects.
Verdict
Goose is a solid choice for agentic engineers who want an open source CLI agent with native MCP support and serious institutional backing. The tool is less polished than Claude Code but completely free with a BYOK model.
FAQ
Which LLMs does Goose support?
Goose is multi-LLM: OpenAI, Anthropic, local models via Ollama. Check the documentation for the complete list.
Can Goose access the filesystem?
Yes, like any CLI agent, Goose can read and modify files on your system with your permission.
How to install Goose?
Via the instructions on Block's GitHub repo. Requires initial configuration.
Is Goose different from the Goose AI model?
Yes. Block's Goose is a CLI agent. Don't confuse it with any AI models of the same name.
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Screenshots Goose
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Goose : 0/10.
A solid CLI agent signed by Block (Square), with native MCP support and a serious open source approach. A direct competitor to Claude Code for developers who prefer to stay open source..
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