OpenSEO is an open-source SEO platform for keyword research, competitor analysis, backlinks, rank tracking, site audits, and AI-search visibility. It can be used as a hosted app or connected to AI agents over MCP. It is a product of Every App, Inc., founded in 2026 in Boston, and is in the Y Combinator Fall 2026 batch. Founder Ben Senescu announced an AI Visibility beta on October 8, 2026.