MemoryPlugin

MemoryPlugin is a shared memory layer for AI assistants. It keeps one memory outside any single app, so something a user tells Claude is available the next time they open ChatGPT, Gemini or another connected tool. The vendor lists more than 21 supported tools, including ChatGPT, Claude, Gemini, Grok, Perplexity, DeepSeek and Mistral, plus MCP based clients and coding tools such as Cursor. It is aimed at people who use several AI tools and are tired of explaining again their projects, preferences and context at the start of each chat. The service syncs memories and chat history across tools, recalls relevant memories inside conversations, and lets users manage what is stored. The site states that data is encrypted at rest and can be deleted at any time. There is a free seven day trial, and a card is not charged if the user cancels before day seven. Two annual plans are published. Core is $89 per year and includes unlimited memories across the supported tools. Pro is $180 per year and adds the user's entire chat history along with priority access to new features.