~/CLIRank

Best SEO & Web Analytics APIs for AI Agents in 2026

Browse the top SEO & Web Analytics APIs used by developers worldwide. Below: the top 5 SEO & Web Analytics APIs by CLIRank score, the independent rubric for how well an API actually works with AI coding agents like Claude Code and Cursor.

1
Ahrefs/10SEO Platform

SEO toolset API with backlink analysis, keyword research, and site auditing.

Best for: Best backlink database in the industry

analyse backlinksresearch keywordsaudit sitestrack rankings
2
SEMrush/10SEO Platform

Digital marketing API with SEO, PPC, content, and competitive analysis tools.

Best for: Most comprehensive all-in-one SEO suite

research keywordsanalyse domainsaudit sitestrack positions
3
Moz/10SEO Platform

SEO API with domain authority, link analysis, and keyword research.

Best for: Domain Authority metric is still widely referenced

check domain authorityanalyse linksresearch keywordstrack rankings
4
Google Search Console/10Webmaster Tools

Google's API for search performance data, indexing status, and URL inspection.

Best for: Free and authoritative - data direct from Google

query analyticsinspect URLssubmit sitemapsmanage indexing
npm install googleapis
5
Screaming Frog/10Site Crawler

Website crawling tool for SEO auditing with API access for automation.

Best for: Best technical SEO crawler - finds every issue

crawl websitesaudit SEOfind broken linksanalyse redirects

Frequently asked questions

What makes an SEO & Web Analytics API "agent-friendly"?

For AI coding agents, the highest-impact signals are: an official SDK on npm or PyPI, environment variable authentication (no browser OAuth flow), JSON responses that parse cleanly, machine-readable pricing, and reasonable rate limits for scripted use. APIs missing more than two of these are painful for agents to use reliably.

How do you score SEO & Web Analytics APIs?

Each API is rated on 8 signals worth 1-2 points each (11 raw, normalised to 10). The full rubric: official SDK (+2), env var auth (+2), headless compatible (+2), CLI tool (+1), JSON response (+1), curl/CLI docs examples (+1), reasonable rate limits (+1), machine-readable pricing (+1). The top-scoring API in this category right now is Ahrefs at null/10.

Why isn't [my favourite API] on this list?

This list shows the top 5 SEO & Web Analytics APIs by score. The full ranking includes 5 APIs in this category. If yours is missing entirely, submit it at clirank.dev/submit - it gets auto-scored and added if it clears the threshold.

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