OpenCode

Connect OpenCode to Fireworks models and Nexus Auto with the Nexus CLI or manual setup.

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Quick start

1. Install and sign in

   curl -fsSL https://nexus.fireworks.ai/install.sh | bash
   

   You need Node.js 22 or later, git, and bash. On Windows, run the installer from Git Bash. PowerShell breaks the script’s line endings.

   nexus login
   

   Sign in with your browser, or paste a Fireworks API key (fw_...).

   If the Nexus CLI is already installed and signed in, skip to step 2.

2. Connect OpenCode

   nexus opencode
   

   Nexus Auto is the default model. To pick another one, run nexus opencode --model <id>, such as --model glm-latest.

3. Restart and pick a model

   Restart OpenCode and pick a model with /models.

To restore your original settings, run nexus opencode off.

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Use Nexus Auto

• Anthropic and OpenAI model turns need a Provider Key from your admin.

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MCP and tools

• Nexus CLI doesn’t change your MCP servers.
• Nexus CLI doesn’t add web search to OpenCode.

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Troubleshooting

Fixes for issues that affect every harness are in Nexus Auto troubleshooting.

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Manual setup (advanced)

In OpenCode, run /connect, search fireworks.ai, paste your key, and pick a model with /models.

To add models and set a default instead, edit the config:

~/.config/opencode/opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "provider": {
    "fireworks-ai": {
      "options": { "apiKey": "{env:FIREWORKS_API_KEY}" },
      "models": {
        "glm-latest": { "name": "GLM (Latest)" },
        "auto": { "name": "Nexus Auto" }
      }
    }
  },
  "model": "fireworks-ai/glm-latest"
}

Without the Nexus CLI, you take over the tasks it otherwise performs, such as undo and updates.