opencode-arcade

Arcade (OmniMCP) for OpenCode — instant access to 500+ external-service tools (Slack, Gmail, GitHub, Google Calendar, Notion, Linear, Dropbox, and more) over a single MCP connection. Just ask for what you want; Arcade picks the right tool and handles the app sign-in.

Install

One command:

opencode plugin opencode-arcade

Or add it to your opencode.json (plugin array) yourself:

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["opencode-arcade"]
}

The plugin registers the arcade remote MCP server for you (OAuth is auto-discovered — no API keys) and shows a toast with the one-time sign-in link the first time an app needs connecting. Run opencode mcp auth arcade if it doesn't prompt automatically.

Prefer configuring the MCP server yourself instead of using the plugin? Add:

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "arcade": { "type": "remote", "url": "https://omni.arcade.dev/mcp", "enabled": true }
  }
}

What you get

Four meta-tools that resolve to the full Arcade catalog on demand:

• Arcade_SelectTools — find the right tool for a task
• Arcade_UseTool — run it
• Arcade_Apps — see or disconnect your connected apps
• Arcade_ManageToolAuthorization — fix an app connection (switch account, expired sign-in, missing permissions)

Links

• Home: https://omni.arcade.dev
• Endpoint: https://omni.arcade.dev/mcp
• Source: https://github.com/arcadeai-labs/omnimcp

License

Apache-2.0. Copyright (c) 2024–Present Arcade AI.