# SEO Score API > Instant SEO audits for developers. One API call, 54 checks, scored report. ## About SEO Score API (seoscoreapi.com) provides comprehensive SEO audits via a REST API. Each audit scores a URL across five categories: Meta & Content, Technical SEO, Social & Open Graph, Performance, and Accessibility. An AI Readability score measures how well LLMs and RAG pipelines can parse the page. ## API - Base URL: https://seoscoreapi.com - Docs: https://seoscoreapi.com/docs - Authentication: X-API-Key header ## Endpoints - GET /audit?url={url} — Full SEO audit (54 checks, scored) - GET /ai-readability?url={url} — AI readability score only - POST /batch-audit — Audit multiple URLs in one call - GET /report/{domain} — HTML report for a domain - GET /badge/{domain} — SVG score badge ## Blog - /blog/what-is-a-good-seo-score — SEO score ranges explained - /blog/seo-audit-api-for-developers — API overview and use cases - /blog/ai-readability-score — AI readability scoring methodology - /blog/seo-checks-in-cicd-pipeline — CI/CD integration guide - /blog/claude-code-seo-skill — Claude Code integration ## Pricing Free tier: 2 audits/day. Paid plans from $5/mo for higher limits.