Hosted server — Claude Desktop connects to remote HTTP MCP servers natively, no bridge needed. Go to Settings → Connectors → Add custom connector, set the name to gtm-mcp-server and the URL to https://gtm-mcp.stape.ai/mcp, then save. Click the new connector to complete the Google OAuth flow in the browser window that opens.

mcp-remote is also possible for the hosted server, for anyone who'd rather configure it through the JSON config file (Settings -> Developer -> Edit Config) instead of the Connectors UI — less recommended, but still supported:

config.json

Copy

{
  "mcpServers": {
    "gtm-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://gtm-mcp.stape.ai/mcp"
      ]
    }
  }
}

Local CLI — no OAuth flow, no data through anyone else's server, you supply a service account key or a refresh token. Open Settings -> Developer -> Edit Config and add:

{
  "mcpServers": {
    "gtm-mcp-server": {
      "command": "npx",
      "args": ["-y", "google-tag-manager-mcp-server"],
      "env": {
        "GOOGLE_SERVICE_ACCOUNT_KEY": "{\"type\":\"service_account\", ... }"
      }
    }
  }
}

See the CLI README for every credential option.

Claude Code speaks HTTP directly, including the OAuth handshake, so the hosted server needs no bridge.

Hosted server:

claude mcp add --transport http gtm-mcp-server https://gtm-mcp.stape.ai/mcp

A browser window opens for the Google OAuth flow the first time a tool is used. Run /mcp inside Claude Code to confirm it connected.

Local CLI:

claude mcp add gtm-mcp-server -e GOOGLE_SERVICE_ACCOUNT_KEY='{"type":"service_account", ... }' -- npx -y google-tag-manager-mcp-server

Both write into .mcp.json / your Claude Code MCP config.

VS Code's MCP client supports HTTP servers and their OAuth flow natively, no mcp-remote needed. Add this to .vscode/mcp.json:

Hosted server:

{
  "servers": {
    "gtm-mcp-server": {
      "type": "http",
      "url": "https://gtm-mcp.stape.ai/mcp"
    }
  }
}

Local CLI:

{
  "servers": {
    "gtm-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "google-tag-manager-mcp-server"],
      "env": {
        "GOOGLE_SERVICE_ACCOUNT_KEY": "{\"type\":\"service_account\", ... }"
      }
    }
  }
}

GitHub Copilot Chat in VS Code uses VS Code's own MCP client, so it reads the same .vscode/mcp.json file — see VS Code above. No separate configuration is needed.

Copilot CLI also completes OAuth natively for remote HTTP servers. Add this to ~/.copilot/mcp-config.json:

Hosted server:

{
  "mcpServers": {
    "gtm-mcp-server": {
      "type": "http",
      "url": "https://gtm-mcp.stape.ai/mcp"
    }
  }
}

Local CLI:

{
  "mcpServers": {
    "gtm-mcp-server": {
      "command": "npx",
      "args": ["-y", "google-tag-manager-mcp-server"],
      "env": {
        "GOOGLE_SERVICE_ACCOUNT_KEY": "{\"type\":\"service_account\", ... }"
      }
    }
  }
}

See GitHub's docs for the equivalent copilot mcp add subcommand.

Cursor speaks HTTP directly too, no mcp-remote needed. Add this to .cursor/mcp.json (project-level) or ~/.cursor/mcp.json (global — Settings → MCP → Add new global MCP server):

Hosted server:

{
  "mcpServers": {
    "gtm-mcp-server": {
      "url": "https://gtm-mcp.stape.ai/mcp"
    }
  }
}

A browser window opens for the Google OAuth flow the first time a tool is used.

Local CLI:

{
  "mcpServers": {
    "gtm-mcp-server": {
      "command": "npx",
      "args": ["-y", "google-tag-manager-mcp-server"],
      "env": {
        "GOOGLE_SERVICE_ACCOUNT_KEY": "{\"type\":\"service_account\", ... }"
      }
    }
  }
}

Antigravity's own OAuth support for remote HTTP servers doesn't reliably reach a token to the server yet (antigravity-cli#25), so use mcp-remote for the hosted server here too. Add this to ~/.gemini/config/mcp_config.json (global) or .agents/mcp_config.json (workspace-local) — accessible from the editor's agent panel via … → MCP Servers → Manage MCP Servers → View raw config:

Hosted server:

{
  "mcpServers": {
    "gtm-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://gtm-mcp.stape.ai/mcp"
      ]
    }
  }
}

Local CLI:

{
  "mcpServers": {
    "gtm-mcp-server": {
      "command": "npx",
      "args": ["-y", "google-tag-manager-mcp-server"],
      "env": {
        "GOOGLE_SERVICE_ACCOUNT_KEY": "{\"type\":\"service_account\", ... }"
      }
    }
  }
}

1. In ChatGPT, enable Developer mode: Settings → Apps & Connectors → Advanced settings → Developer mode.
2. Go to Settings → Connectors → Create, and set the server URL to https://gtm-mcp.stape.ai/mcp.
3. Set Authentication to OAuth and complete the Google login in the browser window that opens.

ChatGPT only reaches servers over the public internet, it can't spawn a local process — so there's no Local CLI option here, only the hosted server.

Any other MCP-compatible client that expects a stdio-style command/args config can use the same mcp-remote block for the hosted server:

{
  "mcpServers": {
    "gtm-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://gtm-mcp.stape.ai/mcp"
      ]
    }
  }
}

Or the local CLI directly, with your credentials: