# HuntRule > HuntRule turns current attacker techniques into expert-reviewed Sigma detection rules that security teams and security products can discover, understand and deploy. ## Pages - [Rule catalog](https://huntrule.com/rules): every published Sigma detection, filterable by technique category and severity. - [Pricing](https://huntrule.com/pricing): browsing is free; paid plans carry a monthly allowance of rule unlocks. - [How it works](https://huntrule.com/about): how detections are built, reviewed and delivered. ## Machine-readable - [Sitemap](https://huntrule.com/sitemap.xml) - Rule list JSON: https://huntrule.com/api/rules - Single rule JSON: https://huntrule.com/api/rules/{slug}