VS Code

VS Code uses MCP tools in GitHub Copilot agent mode. It connects to SealGate as a remote HTTP MCP server, through a one-click install link or a mcp.json entry.

Prerequisites

• VS Code with GitHub Copilot, and Copilot Chat in Agent mode.
• A SealGate account at dashboard.sealgate.ai.

1. One-Click Install

In the dashboard, open the Connect Agent page, choose VS Code, pick API key or OAuth under Authentication, and click the install button. VS Code opens and adds a server named sealgate. With OAuth, VS Code then opens your browser to sign in to SealGate.

2. Or Add It by Hand

Get your connection URL from Settings > Api key / MCP URL > Get MCP URL > VS Code. Run MCP: Open User Configuration from the Command Palette (or create .vscode/mcp.json for one workspace) and add:

{
  "servers": {
    "sealgate": {
      "type": "http",
      "url": "https://mcp.sealgate.ai/mcp/<your-api-key>/?client=vscode"
    }
  }
}

For OAuth sign-in instead, use the keyless URL https://mcp.sealgate.ai/mcp?client=vscode. VS Code prompts you to sign in when the server starts.

Treat a key URL like a password, and don't commit it in a workspace .vscode/mcp.json. The host differs per environment, so always copy it from your own dashboard.

3. Verify

Run MCP: List Servers and check that sealgate is running. Then, in Copilot Chat agent mode, ask:

Call the sealgate builtin_whoami tool to confirm your connection to the SealGate gateway.

The call appears under Sessions in the dashboard.

Troubleshooting

• No SealGate tools in chat: switch Copilot Chat to Agent mode and enable sealgate in the tools picker.
• Server stopped: run MCP: List Servers, select sealgate, and start or restart it.
• 401 Unauthorized (API key): the key was rotated. Copy a fresh URL from Settings.