ChatGPT MCP setup

ChatGPT MCP access depends on your account and whether developer mode or workspace connectors are available.

ChatGPT web

If your account has connector developer mode:

1. Open ChatGPT settings.
2. Go to connectors.
3. Enable developer mode if available.
4. Add a remote MCP server.
5. Use https://www.sniffopotamus.com/mcp.
6. Complete OAuth when prompted.
7. Test with read-only questions first.

If you do not see developer mode or custom MCP connectors, use the OpenAI API path instead.

OpenAI API

The Responses API supports remote MCP servers through the mcp tool type. Use Sniffopotamus as the server_url and require approval for write tools.

{
  "type": "mcp",
  "server_label": "sniffopotamus",
  "server_url": "https://www.sniffopotamus.com/mcp",
  "require_approval": "always"
}

Safety

OpenAI recommends connecting only to MCP servers you trust. Use read-only tools first, require approval for writes, and avoid exposing sensitive data through tool outputs.

Reference:

• OpenAI MCP overview
• OpenAI remote MCP tools
• ChatGPT developer mode