OP Vault is a versatile platform that allows users to upload various document types through a simple react frontend, enabling the creation of a customized knowledge base. It leverages advanced algorithms to provide accurate and relevant answers based on the content of the uploaded documents. Users can gain insights into the answers by viewing filenames and specific context snippets. The user-friendly interface of OP Vault makes it easy to explore the capabilities of the OP Stack, a powerful combination of OpenAI and Pinecone Vector Database. Moreover, OP Vault supports large-scale uploads, making it possible to load entire libraries' worth of books, thus expanding the scope of knowledge accessible through the platform. To ensure smooth operation, certain manual dependencies such as node (v19), go (v1.18.9 darwin/arm64), and poppler are required. With its diverse features, OP Vault offers a convenient solution for document upload, accurate retrieval of answers, and efficient exploration of information.