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Getting Started with Multilogin X API

Multilogin X provides a comprehensive API for programmatic management of anti-detect browser profiles. This guide covers the fundamentals you need before making your first API call.

Prerequisites

  • A Multilogin X account with an active subscription
  • The Multilogin X Agent installed and running on your local machine
  • Basic familiarity with REST APIs and curl/HTTP requests

Architecture

Multilogin X has two API surfaces:

SurfaceBase URLRequires Agent?
Cloud APIhttps://api.multilogin.comNo
Local Launcherhttps://launcher.mlx.yt:45001Yes

First Steps

  1. Authenticate -- Get a Bearer Token
  2. Understand Base URLs -- Know which API surface to call
  3. Request Format -- JSON bodies and standard responses
  4. Strict vs Non-Strict Mode -- Understand validation modes

Key Concepts

Browser Types

  • Mimic -- Chromium-based anti-detect browser
  • Stealthfox -- Firefox-based anti-detect browser

Profile Types

  • Regular profiles -- Persistent profiles stored in cloud or locally
  • Quick profiles -- Temporary profiles that are not saved after closing

Storage Types

  • Cloud -- Profiles synced to Multilogin servers
  • Local -- Profiles stored only on the local machine

Folders

Every profile belongs to a folder. You need the folder_id when creating or launching profiles.