Onymety, operating under the brand name EchoVault, is a digital legacy platform that enables users to create an interactive AI avatar of themselves. The primary function of the service is to preserve a person's voice, stories, visual presence, and personality traits so that loved ones can continue to interact with the avatar after the user has passed away. The platform is designed to move beyond static recordings by creating a dynamic "Echo" that can respond to new questions and maintain a conversational presence over time. The platform offers three main modalities for legacy preservation: Seed, Voice, and Prime. The Seed tier provides unlimited text-based conversations with the Echo and includes guided Check-In sessions where an AI biographer helps draw out life stories, values, and memories. The Voice tier adds real-time voice cloning powered by ElevenLabs, allowing the Echo to speak with the user's unique vocal signature and tone. The Prime tier enables live, face-to-face video conversations using Tavus CVI technology, where the Echo responds visually in real time. The platform is built on a conversational AI powered by Google's Gemini LLM and a RAG memory architecture. Typical use cases include preserving the wisdom and stories of elderly family members for future generations, ensuring a parent's guidance remains accessible to their children, and allowing visionaries to maintain control over their life story and philosophy. The workflow begins with the user creating an avatar and participating in guided Check-In sessions to populate the Echo with personal memories and values. Users can then designate up to three custodians who will have access to the Echo. The service includes a legacy credit matching system where maintaining an active Prime subscription adds future access time for designated loved ones. Technical requirements include a subscription for voice and video features. The text tier is free forever. Voice cloning requires an ElevenLabs integration, and video avatar training is unlocked through the Prime subscription. The Prime subscription costs 18 dollars per month after an initial three month trial period. The platform is not a password vault or a generic chatbot; it is specifically a dynamic AI representation built from the user's actual memories, speech patterns, and mannerisms.