Cursor

Cursor connects to SealGate as a remote MCP server over streamable HTTP, through a one-click install link or a mcp.json entry.

Prerequisites

• Cursor installed.
• A SealGate account at dashboard.sealgate.ai.

1. One-Click Install

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

2. Or Add It by Hand

Get your connection URL from Settings > Api key / MCP URL > Get MCP URL > Cursor, then add it to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (one project):

{
  "mcpServers": {
    "sealgate": {
      "url": "https://mcp.sealgate.ai/mcp/<your-api-key>/?client=cursor"
    }
  }
}

For OAuth sign-in instead, use the keyless URL https://mcp.sealgate.ai/mcp?client=cursor. Cursor prompts you to sign in on first connect.

Treat a key URL like a password. The host differs per environment, so always copy it from your own dashboard.

3. Verify

Open Cursor Settings > MCP and check that sealgate is enabled with its tools listed. Then ask the Cursor agent:

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

The call appears under Sessions in the dashboard.

Troubleshooting

• Install link does nothing: add the server by hand as in step 2.
• Auth errors after a while (OAuth): toggle sealgate off and on in Cursor Settings > MCP. This is a known Cursor token-refresh bug.
• 401 Unauthorized (API key): the key was rotated. Copy a fresh URL from Settings.