Coretex SEO is an AI-powered SEO plugin for WordPress, built for site owners, freelancers and agencies who want help with on-page SEO without handing control to an AI.
It scans your posts and pages and drafts fixes for page titles, meta descriptions, headings, image titles, image alt text, internal link phrases and spelling. Every suggestion goes into an approval queue, where you can apply it, edit it first or dismiss it. Nothing on the site changes until you approve it.
You connect your own AI provider and pay them directly with no markup: OpenAI, Anthropic Claude, Google Gemini, Mistral AI, Groq, DeepSeek, xAI Grok, Perplexity or OpenRouter. You can also run Ollama on your own server, with no API key and no per-request bill. An optional Site Profile (niche, audience, tone, topics) helps the AI write in a way that suits each site.
Coretex SEO also includes GEO (Generative Engine Optimisation) tools to help structure content for AI search, such as ChatGPT, Perplexity and Google AI Overviews. You can schedule scans too: the Free Edition has an optional weekly SEO audit with an email report, and the Agency Edition adds Schedule Full Week Scan.
Pricing: the Free Edition is free forever and needs no licence key. Agency is £49 per site per year.
Requirements: WordPress 6.0 or later and PHP 7.4 or later. First published on WordPress.org in June 2026.