Quick browser profiles are temporary browser sessions for short tasks. When you close one, Multilogin deletes the profile and its data automatically. Start Quick Profile endpoint will help you launch multiple quick profiles.

This guide shows you how to start quick browser profiles through Postman using the Multilogin API.

When should I use a quick profile?

Use quick browser profiles for short web tasks such as testing a page, checking a login, or opening a few URLs. Use a regular browser profile when you need to keep cookies, logins, or session history.

Before you start

1. Complete all three steps from the article How to set up Multilogin API with Postman, including “Using the bearer token”: they will allow you to sign in correctly
2. Navigate to the “Launcher” section in your Postman workspace and select the Start Quick Profile v3 endpoint
3. Add a proxy: 
   1. Go to the “Body” tab 
   2. Scroll down to find flags and set proxy_masking to custom
   3. Add your proxy details into the proxy parameter
4. Fill in the values for automation and headless_mode parameters:
   1. automation: selenium/puppeteer/playwright (specifying this parameter will return the port for automation in the response)
   2. headless_mode: true/false

Run the request

1. Launch the app
2. Click “Send” to execute the request: a “200” status means success (in the response, you will also see the profile ID and the automation port)

{
  "browser_type": "mimic",
  "os_type": "macos",
  "parameters": {
    "flags": {
      "navigator_masking": "mask",
      "audio_masking": "mask",
      "localization_masking": "mask",
      "geolocation_popup": "prompt",
      "geolocation_masking": "mask",
      "timezone_masking": "mask",
      "canvas_noise": "natural",
      "graphics_noise": "natural",
      "graphics_masking": "mask",
      "webrtc_masking": "natural",
      "fonts_masking": "mask",
      "media_devices_masking": "mask",
      "screen_masking": "mask",
      "proxy_masking": "custom",
      "ports_masking": "mask",
      "startup_behavior": "custom"
    },
    "proxy": {
      "host": "gate.multilogin.com",
      "type": "socks5",
      "port": 1080,
      "username": "0_0_0_0_0_0_multilogin_com-country-any-sid-X-filter-medium",
      "password": "0"
    },
    "fingerprint": {},
    "custom_start_urls": [
      "https://multilogin.com/help/en_US/postman/creating-a-quick-profile-with-postman"
    ]
  }
}

Prevent accidental deletion of quick profiles

If you're using quick profiles and want to avoid accidentally closing (permanently deleting) them, you can turn on a warning pop-up.

Add this snippet to the query body:

For mimic profiles:

        "fingerprint": {
            "cmd_params": {
                "params": [
                    {
                        "flag": "warn-on-window-close"
                    }
                ]
            }
        },

For stealthfox profiles:

        
        "fingerprint": {
                "cmd_params": {
                    "params": [
                        {   "flag": "mla.wwc",
                            "value": "true"
                        }
                    ]
                },
            },

{
  "browser_type": "mimic",
  "os_type": "macos",
  "parameters": {
    "flags": {
      "navigator_masking": "mask",
      "audio_masking": "mask",
      "localization_masking": "mask",
      "geolocation_popup": "prompt",
      "geolocation_masking": "mask",
      "timezone_masking": "mask",
      "canvas_noise": "natural",
      "graphics_noise": "natural",
      "graphics_masking": "mask",
      "webrtc_masking": "natural",
      "fonts_masking": "mask",
      "media_devices_masking": "mask",
      "screen_masking": "mask",
      "proxy_masking": "custom",
      "ports_masking": "mask",
      "startup_behavior": "custom"
    },
    "proxy": {
      "host": "gate.multilogin.com",
      "type": "socks5",
      "port": 1080,
      "username": "0_0_0_0_0_0_multilogin_com-country-any-sid-X-filter-medium",
      "password": "0"
    },
    "fingerprint": {
     "cmd_params": {
                "params": [
                    {
                        "flag": "warn-on-window-close"
                    }
                ]
            }
    },
    "custom_start_urls": [
      "https://multilogin.com/help/en_US/postman/creating-a-quick-profile-with-postman"
    ]
  }
}

With this flag enabled, you’ll see a confirmation modal before the profile closes. It’ll even remind you that you can upgrade it to a regular profile if needed (to proceed, see how to convert quick profiles to regular ones).