Today, YOSA is open to everyone. If you create content for the web and care whether it actually ranks - you can start today for free.
What YOSA does
YOSA is an AI content platform built specifically for SEO. It doesn't just generate text - it runs a full content workflow the way an experienced SEO team would: from research to a publish-ready draft. Under two minutes.
Multi-Agent Content Generation
Most AI writing tools hand your brief to a single model and hope for the best. YOSA runs a coordinated team of specialized AI agents - one for SEO guidelines, one for research, one for brief creation, one for writing, one for SEO review.
Each agent passes full context to the next, so nothing gets lost between the research and the final copy.
The output is grounded in live SERP data and AI search results pulled at the time of generation, written to the voice and structure of your specific site, and reviewed for search intent alignment before you ever see it.
Learn more about YOSA Content Generation.
Knowledge Base
Every project in YOSA has a Knowledge Base - a continuously updated index of your site's content, built automatically when you add a domain. YOSA uses it as context during generation, which means it knows what you've already written, how you write, and what internal pages are worth linking to.
No setup, no integrations. It works from the first generation.
Topic Research
Before you write anything, you need to know what's worth writing about.
Topic Research takes a single keyword and returns a full list of topics - each grounded in live SERP and AI search data, grouped by search intent and funnel stage, with reasoning for why each one is worth covering.
One click sends any topic straight into the generation pipeline.
AI-Powered Canvas
Generated content lands in Canvas - YOSA's built-in editor. Edit manually, leave comments that YOSA rewrites from, or ask for changes in chat.
Every edit is versioned. Roll back to any previous state at any time.
It works the way editorial review actually works: you get your content, mark what needs changing, let the writer handle the rewrite, publish when you're satisfied.
Built for teams, not just individuals
YOSA is organized around projects and organizations. Each project maps to a website, with its own Knowledge Base, brand voice settings, and assigned team members.
Content, canvases, and topic research are shared across the organization.
If you're an agency managing multiple clients, each site lives in its own project. Your team sees only what they're assigned to. Content doesn't mix.
How we got here
YOSA started as an internal tool.
Top Online has been doing SEO for hundreds of clients for over 15 years. At some point, the content bottleneck became impossible to ignore. We needed to produce more, faster, with consistent quality, across dozens of websites and industries.
We tried almost every AI writing tool on the market. None of them worked the way our agency actually works.
So we built our own.
The first version was rough. It did the job internally, but it wasn't something we'd put in front of anyone else.
Over the following months we opened a private beta. More than 1,000 people tested it, broke it, and told us exactly where it fell short.
That feedback shaped everything. Features we thought were essential got cut. Things we almost didn't build became important. We pivoted, rebuilt, and cut scope more times than I'd like to count.
The version you're looking at today is the result of that process that took us almost 2 years. We want to share something our teams actually use daily for content creation across 200+ client websites.
It's also the culmination of one of the most ambitious projects in my life.
Launch offer
To mark the launch, we're offering 20% off all paid plans for the first month. Use the code LAUNCH20, active only for the first two weeks.
If you're considering a paid plan, now is a good time to start.
The Free plan is permanently free, no card required, and includes 2 monthly content generations with Knowledge Base from day one.
What's next
We're not done. Right now, Knowledge Base learns from your website. Soon it will learn from your files too - strategy docs, product briefs, editorial guidelines, anything you'd normally hand to a copywriter before they start.
We're also working on new content types, API access and MCP support, so YOSA fits into the workflows you already have, and a few things we're not ready to talk about yet.
YOSA is being built by an SEO team, for SEO teams.
If you have feedback - what's missing, what's broken, what you wish it did - we want to hear it. Reach out at [email protected], or directly in the app.