opcode is a free, open-source desktop application that gives Anthropic's command-line coding agent a graphical interface. It lets developers browse every project and past session in one window, build reusable custom agents with their own prompts and sandboxed execution, and watch token usage and cost through a usage dashboard. A built-in markdown editor with syntax highlighting handles system prompt files, and MCP servers can be configured visually. Builds exist for macOS and Linux, with Windows listed as coming soon, and the source code is hosted on GitHub.
Developers who already live in the terminal with an AI coding agent are the main audience, particularly anyone juggling several projects and losing track of old conversations. Team leads who want to understand how much their AI coding costs will value the spending analytics. Engineers who write many custom prompts or agent definitions get a proper editor instead of switching between windows. Privacy-minded users get data kept locally with no cloud dependency or external tracking. Contributors comfortable with Rust, TypeScript and React can also modify the app, since it is built with Tauri 2.0.
A developer might open the project browser to resume a session from last week, create a checkpoint before a risky refactor, and branch the conversation like a Git history to try another approach. Someone running recurring tasks can define an agent for code review or documentation and rerun it across repositories. Freelancers can track token spend per project to inform client billing. Teams standardizing their setup can manage MCP servers and project instruction files in one place, and the diff view helps review what changed during a session before committing.
