About EveryApp
Summary
OpenSEO builds an open-source SEO platform that gives founders and marketers keyword research, backlink analysis, rank tracking, site auditing, and AI-brand visibility tools, replacing paid subscriptions to tools like Semrush and Ahrefs. It also exposes SEO data directly to AI agents via an MCP server, letting tools such as Claude and Codex run keyword research, audits, and competitor analysis without a human in the loop.
Business model
A free tier with no credit card required, plus paid plans.
Go-to-market
Entrepreneurs and indie founders adopt it self-serve, drawn by the open-source repo and a two-minute MCP setup that plugs OpenSEO data into whichever AI client they already use.
From the Y Combinator listing
Make every app open source
EveryApp is building open source alternatives to every SaaS. It’s a platform to host these open source apps and personal software. Everything runs behind one secure sign-in in your own Cloudflare account.
Facts
- B2B / B2B
- 2
- Active
- Early
Founders (1)
Score every batch against your own thesis
GPAgent's sourcing agent reads every company in a batch, scores each one against your fund's thesis in a private workspace, and lines up the founders worth meeting before Demo Day. You decide who to contact. Your scores, notes, and pipeline never appear on these pages.
How Accelerator intelligence works