Skip to main content

Configure VS Code

VS Code reaches MCP servers through GitHub Copilot: they appear as callable tools in Copilot Chat when you're in Agent mode.

Prerequisites​

  • VS Code with the GitHub Copilot extension installed.
  • Node.js 18+.

Add the server​

Create or edit .vscode/mcp.json in your workspace root:

{
  "servers": {
    "onesource": {
      "command": "npx",
      "args": ["-y", "@one-source/mcp@latest"],
      "env": { "ONESOURCE_API_KEY": "sk_…" }
    }
  }
}
caution

VS Code uses "servers" as the top-level key. Claude Desktop, Cursor, and Windsurf all use "mcpServers"; copying a config across clients without changing this key will silently fail.

You can also reach this file from the Command Palette: Ctrl+Shift+P (Cmd+Shift+P on macOS) → MCP: Add Server.

Workspace vs user scope​

  • Workspace (the example above): .vscode/mcp.json in your workspace root. The server is only available in that workspace.
  • User: Command Palette → MCP: Open User Configuration. The server is available across every workspace.

Verify​

Open Copilot Chat, switch to Agent mode, and prompt: "Call 1s_setup_check." You should see a tool card with Status: Configured (API key).

With x402 (wallet-paid)​

Swap ONESOURCE_API_KEY for an Ethereum private key:

{
  "servers": {
    "onesource": {
      "command": "npx",
      "args": ["-y", "@one-source/mcp@latest"],
      "env": { "X402_PRIVATE_KEY": "0x…" }
    }
  }
}

See x402 on Base for funding details.

Next​