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OpenCode is a powerful AI coding agent that can be configured to use VibeCodeCheap’s models.

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Step 1: Install OpenCode

The easiest way to install OpenCode is through the install script. 
curl -fsSL https://opencode.ai/install | bash
You can also install with npm: 
npm install -g opencode-ai

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Step 2: Configure Custom Provider

  1. Visit the VibeCodeCheap API Console to get your API key.
  2. Run opencode auth login and scroll down to select Other to create a custom provider. 
$ opencode
opencode auth login
┌ Add credential
│
◆ Select provider
│ ...
│ ● Anthropic
└
  1. Enter your VibeCodeCheap API key.
┌ Add credential
│
◇ Enter your API key
│ lm_...
└
  1. Create or update the opencode.json configuration file:
    • Global config (~/.config/opencode/opencode.json) - user preferences
    • Project config (opencode.json in project root) - project-specific settings
{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "anthropic": {
      "options": {
        "baseURL": "https://api.vibecodecheap.com/v1/ai/v1"
      }
    }
  }
}
See Models for all available models.
  1. Run opencode and use the /models command to select Claude Opus 4.5 or Claude Sonnet 4.5 in Anthropic.
Do NOT select “Claude Opus 4.5 (latest)” or “Claude Sonnet 4.5 (latest)” - these are default Anthropic models that won’t use VibeCodeCheap’s API.
$ opencode
/models

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Share

OpenCode’s share feature allows you to create public links to conversations, making it easy to collaborate with teammates or get help from others.

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How It Works

When you share a conversation, OpenCode:
  1. Creates a unique public URL for your session
  2. Syncs the conversation history to servers
  3. Makes the conversation accessible via a shareable link — opencode.ai/s/<share-id>

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Share

By default, conversations are not shared automatically. You can manually share using the /share command: 
/share

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Un-share

To stop sharing a conversation and remove it from public access: 
/unshare

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IDE Extensions

OpenCode integrates with VS Code, Cursor, or any IDE that supports terminal.

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Installation

To install OpenCode on VS Code and popular forks like Cursor, Windsurf, VSCodium:
  1. Open VS Code
  2. Open the integrated terminal
  3. Run opencode - the extension auto-installs

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Usage

  • Quick Launch: Use Cmd+Esc (Mac) or Ctrl+Esc (Windows/Linux) to open OpenCode in a split terminal view.
  • New Session: Use Cmd+Shift+Esc (Mac) or Ctrl+Shift+Esc (Windows/Linux) to start a new session.
  • Context Awareness: Automatically shares selection or current tab with OpenCode.
  • File Reference Shortcuts: Use Cmd+Option+K (Mac) or Alt+Ctrl+K (Linux/Windows) to insert file references. For example @File#L37-42.

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GitHub Workflow

OpenCode integrates with GitHub workflow. Mention /opencode or /oc in a comment, and OpenCode will execute tasks in a GitHub Actions runner.

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Features

  • Triage issues: Ask OpenCode to review an issue and explain.
  • Fix and implement: Ask OpenCode to fix an issue or implement a feature. OpenCode will work in a new branch and submit a PR with all changes.
  • Secure: OpenCode runs inside your GitHub runners.

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Installation

Run the following command in a project with a GitHub repo: 
opencode github install

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Examples

  • Explain an issue: Add this comment in a GitHub issue. 
    /opencode explain this issue
  • Fix an issue: In a GitHub issue: 
    /opencode fix this
  • Review PRs and make changes: Comment on a GitHub PR. 
    Delete the attachment from S3 when the note is removed /oc

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Resources