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Marketing

Best SEO APIs in 2026

  1. 01 Ahrefs

    Ahrefs suits people doing keyword, competitor, backlink and site-audit work who need web tools or API access.

    From $29/mo Free plan Web · API
    9.2 Visit Specs
  2. 02 SEO PowerSuite

    It suits people who need keyword research, rank tracking, site auditing, backlink analysis, or competitor research.

    From $29.08/mo Free plan Windows · macOS · Linux · API
    8.6 Visit Specs
  3. 03 Semrush
    From $10/mo Free plan API
    8.5 Visit Specs
  4. 04 Keyword Tool

    Keyword Tool suits solo marketers, businesses, in-house teams, agencies, SEO and content professionals, and PPC managers looking for keyword suggestions or competitor research.

    From $68/mo Free plan Web · API
    8.4 Visit Specs
  5. 05 Google Search Console

    Google identifies business owners, SEO specialists or marketers, site administrators, and web developers as users.

    Free plan Web · API
    8.3 Visit Specs
  6. 06 LinkResearchTools

    LinkResearchTools suits SEO practitioners focused on backlink audits, link discovery, monitoring, and competitor research.

    From $17/mo Free trial Web · Browser extension
    8.3 Visit Specs
  7. 07 GeoRanker
    From $99/mo Free trial Web · API
    8.2 Visit Specs
  8. 08 DataForSEO Labs API
    Free plan Web · API
    8.1 Visit Specs
  9. 09 DataForSEO SERP API
    Free plan Web · API
    8.0 Visit Specs
  10. 10 Keyword Discovery

    Keyword Discovery suits people doing SEO, PPC, niche marketing, or domain parking research.

    From $41.66/mo Free plan Web · API
    8.0 Visit Specs
  11. 11 BrightEdge
    Web · API
    7.9 Visit Specs
  12. 12 Ranked AI API
    From $99/mo Free trial Web · API
    7.8 Visit Specs
  13. 13 Semust API

    Semust says it serves people seeking to grow income through organic search and supports content creators.

    From $19/mo Free plan Web · API · Browser extension
    7.8 Visit Specs
  14. 14 backlinks.sh
    Web · API
    7.7 Visit Specs
  15. 15 SEOmonitor
    From €25/mo Free trial Web · API
    7.7 Visit Specs
  16. 16 SISTRIX
    From €119/mo Free trial Web · API
    7.7 Visit Specs
  17. 17 SpyFu

    SpyFu suits SEO, paid-search and agency users who need keyword, competitor, backlink and ranking data through web or API access.

    From $29/mo Web · API
    7.7 Visit Specs
  18. 18 Keyword.com
    From $3/mo API
    7.3 Visit Specs
  19. 19 seofetch
    Web · API
    7.2 Visit Specs
  20. 20 Newinterval
    From $20/mo API
    7.0 Visit Specs
  21. 21 SEO API
    API
    6.8 Visit Specs
  22. 22 Serpstat
    From $50/mo API
    6.8 Visit Specs
  23. 23 SE Ranking
    From $129/mo API
    6.7 Visit Specs
  24. 24 Majestic
    API
    6.6 Visit Specs
  25. 25 DataForSEO Backlinks API
    Web
    6.0 Visit Specs
How this list is ordered. Specifiction scores each tool on how fully its maker documents it, whether its prices are published, where the research puts it, the platforms it runs on and whether it can be tried for free (how we rank). Makers can also buy a numbered place (how Specifiction is paid for).

Compare Ahrefs and SEO PowerSuite Get a place on this list

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