SEO Score API is an affordable, API-first SEO auditing platform. We run 54+ checks on any URL and return a scored report with category breakdowns, AI readability analysis, and prioritized fix recommendations — all via a single API call.
SEO Score API is built and operated by Aaron VanSledright, founder of 45Squared — a WordPress development and SEO agency. After years of building SEO tooling for clients, Aaron created SEO Score API to fill a gap: there was no affordable, developer-friendly way to programmatically audit SEO at scale.
Enterprise SEO tools charge $200–$500/month for features most developers and small agencies don't need. SEO Score API delivers the core audit — meta tags, technical health, performance, accessibility, structured data, and AI readability — at a fraction of the cost, starting free and scaling to $99/month for high-volume users.
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