Joiyn AI is a client access software designed for marketing agencies. Its primary function is to streamline the process of obtaining OAuth-based access to clients' advertising and marketing platforms. Instead of relying on traditional methods such as sharing passwords, sending multi-step instructions, or exchanging PDF credentials, Joiyn allows agencies to send clients a single branded link. This link grants the agency secure, permission-based access to over 30 platforms, including Meta, Google, TikTok, LinkedIn, Reddit Ads, Amazon Ads, and X Ads, typically within minutes. The platform features a white-label portal where agencies can add their own logo and branding. The workflow involves three steps: the agency generates a link and selects the required platforms, the client opens the link on any device and taps an "Allow" button similar to a standard social login, and the agency receives immediate access to the client's accounts. Joiyn supports a wide range of integrations beyond advertising platforms, including CRMs, WordPress, and GoDaddy. The tool is built to eliminate the back-and-forth communication and security risks associated with sharing passwords. Typical use cases include onboarding new clients, managing multiple ad accounts across different platforms, and reducing the time spent on administrative access tasks. The software is designed for agencies that need to move quickly, with an average client connection time of under five minutes. It is available in over 40 countries and requires no credit card for initial setup, with a setup process that takes approximately five minutes. The system provides instant access confirmation and does not require clients to have technical expertise or an IT department to complete the connection.