Hjarni is an innovative knowledge base designed to enhance the capabilities of AI systems like ChatGPT and Claude by providing them with long-term memory. By allowing users to create and organize notes in simple Markdown format, Hjarni empowers these AI models to remember past interactions and relevant information, thereby reducing the need for repetitive context explanations in conversations. The built-in MCP server facilitates a seamless connection between the user and their AI, enabling the AI to search, read, and update notes effortlessly during interactions.

Hjarni is particularly beneficial for developers, researchers, founders, and writers, allowing them to keep track of important project details, insights, and decisions. With flexible pricing options, including a free tier for up to 25 notes and comprehensive features in the Pro version, Hjarni ensures that users can tailor their experience to their needs without unexpected costs. The name Hjarni, meaning brain in Old Norse, aptly reflects its mission to equip AI with the cognitive tools necessary to assist users effectively.