opencode

AI coding agent, built for the terminal.

⚠️ Note: version 0.1.x is a full rewrite, and we do not have proper documentation for it yet. Should have this out week of June 17th 2025 📚

Installation

# YOLO
curl -fsSL https://opencode.ai/install | bash

# Package managers
npm i -g opencode-ai@latest        # or bun/pnpm/yarn
brew install sst/tap/opencode      # macOS
paru -S opencode-bin               # Arch Linux

Note: Remove previous versions < 0.1.x first if installed

Providers

The recommended approach is to sign up for claude pro or max and do opencode auth login and select Anthropic. It is the most cost-effective way to use this tool.

Additionally, opencode is powered by the provider list at models.dev so you can use opencode auth login to configure api keys for any provider you'd like to use. This is stored in ~/.local/share/opencode/auth.json

$ opencode auth login

┌  Add credential
│
◆  Select provider
│  ● Anthropic (recommended)
│  ○ OpenAI
│  ○ Google
│  ○ Amazon Bedrock
│  ○ Azure
│  ○ DeepSeek
│  ○ Groq
│  ...
└

The models.dev dataset is also used to detect common environment variables like OPENAI_API_KEY to autoload that provider.

If there are additional providers you want to use you can submit a PR to the models.dev repo. If configuring just for yourself check out the Config section below

Project Config

Project configuration is optional. You can place an opencode.json file in the root of your repo, and it will be loaded.

{
  "$schema": "http://opencode.ai/config.json"
}

MCP

{
  "$schema": "http://opencode.ai/config.json",
  "mcp": {
    "localmcp": {
      "type": "local",
      "command": ["bun", "x", "my-mcp-command"],
      "environment": {
        "MY_ENV_VAR": "my_env_var_value"
      }
    },
    "remotemcp": {
      "type": "remote",
      "url": "https://my-mcp-server.com"
    }
  }
}

Providers

You can use opencode with any provider listed at here. Use the npm package name as the key in your config. Note we use v5 of the ai-sdk and not all providers support that yet.

{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "@ai-sdk/openai-compatible": {
      "name": "ollama",
      "options": {
        "baseURL": "http://localhost:11434/v1"
      },
      "models": {
        "llama2": {
          "name": "llama2"
        }
      }
    }
  }
}

Contributing

To run opencode locally you need

• bun
• golang 1.24.x

To run

$ bun install
$ cd packages/opencode
$ bun run src/index.ts

FAQ

How do I use this with OpenRouter

OpenRouter is not yet in the models.dev database, but you can configure it manually.

{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "@openrouter/ai-sdk-provider": {
      "name": "OpenRouter",
      "options": {
        "apiKey": "sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
      },
      "models": {
        "anthropic/claude-3.5-sonnet": {
          "name": "Claude 3.5 Sonnet"
        }
      }
    }
  }
}

How is this different than claude code?

It is very similar to claude code in terms of capability - here are the key differences:

• 100% open source
• Not coupled to any provider. Although anthropic is recommended opencode can be used with openai, google or even local models. As models evolve the gaps between them will close and pricing will drop so being provider agnostic is important.
• TUI focus - opencode is built by neovim users and the creators of https://terminal.shop - we are going to push the limits of what's possible in the terminal
• client/server architecture - this means the tui frontend is just the first of many. For example, opencode can run on your computer and you can drive it remotely from a mobile app

Windows Support

There are some minor problems blocking opencode from working on windows. We will fix them soon - would need to use wsl for now.