PowerMemory is an independent third-party service, not affiliated with, endorsed by, or sponsored by any AI provider. Claude (Anthropic, PBC), ChatGPT (OpenAI, Inc.), and Grok (xAI Corp.) connect via the open Model Context Protocol (MCP); Gemini (Google LLC), Microsoft Copilot (Microsoft Corporation), and Perplexity (Perplexity AI, Inc.) connect via the PowerMemory Chrome extension. All trademarks are the property of their respective owners, named only to describe compatibility (nominative use). MCP is an open standard maintained by the Agentic AI Foundation under the Linux Foundation. Interoperability does not imply partnership.