Introduction to OpenCode: A Free Coding Agent

What Is OpenCode

OpenCode is a free, open-source terminal-based coding agent. It runs inside your project folder and can read files, search code, edit files and run commands while you watch its progress in a keyboard-driven interface.

Why Developers Use It

• Free and open source - No subscription is required to use the tool itself.
• Bring your own model - Connect your own API keys, or use local models.
• Terminal native - Works in any project without a separate app window.
• Expressive tools - Edit, glob, grep, bash and task tools cover most coding work.

Built-In Configurability

OpenCode supports skills, plugins, agents, commands and MCP servers, so you can extend the agent with your own workflows, similar to other modern coding assistants.

Key Points

• OpenCode is a free, open-source coding agent.
• It runs in the terminal inside your project.
• You connect the model provider yourself.
• Skills, agents and MCP make it extendable.