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Best SEO APIs in 2026

  1. 1

    Ahrefs

    by Ahrefs
    Free plan APIWeb

    Ahrefs covers core SEO research and auditing alongside APIs and content tools.

    7.4 Free plan · paid from $29/mo Visit site
  2. 2

    Google Search Console

    Free plan APIWeb

    Search Console provides search performance reporting alongside tools for crawling, indexing, and site issue monitoring at no charge.

    7.2 Free plan Visit site
  3. 3

    Keyword Discovery

    Free plan APIWeb

    Keyword Discovery combines keyword research tools with regional databases, project organization, and XML API access.

    7.1 Free plan · paid from $49.95/mo Visit site
  4. 4

    Keyword Tool

    Free plan APIWeb

    Keyword Tool offers no-account autocomplete suggestions and broader metrics through paid plans. Keep the modeled estimates and shared daily request pool in mind when selecting a plan.

    7.1 Free plan · paid from $68/mo Visit site
  5. 5

    Semust API

    Free plan APIExtensionWeb

    Semust combines search and keyword APIs with a broader set of SEO tools and integrations. The free option lasts 14 days, while paid monthly plans begin at $19/mo and have usage limits.

    7.0 Free plan · paid from $19/mo · 14-day trial Visit site
  6. 6

    SEO PowerSuite

    by SEO PowerSuite
    Free plan APILinuxMac+1

    SEO PowerSuite covers several SEO research and tracking tasks, with a free tier and three annual paid plans.

    7.0 Free plan · paid from $349/yr Visit site
  7. 7

    Majestic

    by Majestic
    Free plan API

    Consider Majestic if you need several kinds of SEO research in one service, with a free plan available or a named plan sized to your listed usage needs.

    6.9 Free plan Visit site
  8. 8

    seofetch

    Free plan APIWeb
    6.8 From $49 Visit site
  9. 9

    Semrush

    by Semrush
    Free plan API
    6.7 Free plan · 7-day trial Visit site
  10. 10

    SpyFu

    by SpyFu
    Free plan APIWeb

    SpyFu brings SEO and paid-search research together with reporting, integrations and historical data. Check the billing term and Pro + AI introductory pricing when choosing a plan.

    6.6 Free plan · paid from $29/mo (annual) Visit site
  11. 11

    Serpstat

    by Serpstat
    Free plan API

    Serpstat combines several SEO research and monitoring tools with API access. The plan limits vary substantially, so compare searches, checks, audit pages, exports, and team seats against your needs.

    6.5 Free plan · paid from $50/mo · 7-day trial Visit site
  12. 12

    DataForSEO SERP API

    by DataForSEO SERP API
    Free trial APIWeb

    DataForSEO SERP API offers multiple result formats, engines, and device targets for search data workflows.

    6.1 From $0.00 Visit site
  13. 13

    GeoRanker

    Free trial APIWeb

    GeoRanker combines SEO research, SERP data, scraping, and reporting through web tools and APIs. Its plans and credit rules should be matched to the scale and search coverage your work requires.

    6.1 From $99/mo · 7-day trial Visit site
  14. 14

    LinkResearchTools

    Free trial ExtensionWeb

    LinkResearchTools centers on backlink analysis, with tools for audits, discovery, monitoring, and competitor research. Plans start at $599/mo, while the 7-day trial has export and feature limits.

    5.9 From $599/mo · 7-day trial Visit site
  15. 15

    backlinks.sh

    Paid APIWeb
    5.8 From $10 Visit site
  16. 16

    Ranked AI API

    Free trial APIWeb
    5.8 From $4.99/mo · 7-day trial Visit site
  17. 17

    BrightEdge

    by BrightEdge
    Paid APIWeb

    BrightEdge brings SEO research, auditing, content tools, and AI search visibility features together for enterprise teams. Pricing requires a sales discussion, and there is no free plan.

    5.7 Pricing on request Visit site
  18. 18

    DataForSEO Labs API

    Paid APIWeb
    5.7 From $0.02 Visit site
  19. 19

    SEOmonitor

    by SEOmonitor
    Free trial APIWeb

    SEOmonitor brings rankings, AI-search visibility, research, content production, and reporting into one platform. Review keyword and campaign limits to select among Starter, Pro, and Writer-Only.

    5.7 From €99/mo · 14-day trial Visit site
  20. 20

    Moz API

    Free plan
    5.6 Free plan · paid from $20/mo Visit site
  21. 21

    SISTRIX

    by SISTRIX
    Free trial APIWeb

    SISTRIX brings together SEO, AI-search visibility, and Amazon analysis, with plan limits that vary by tier.

    5.5 From €119/mo · 14-day trial Visit site
  22. 22

    Keyword.com

    by Keyword.com
    Paid API
    5.4 From $3/mo (annual) · 14-day trial Visit site
  23. 23

    Newinterval

    by Newinterval
    Paid API
    5.2 From $20/mo Visit site
  24. 24

    SEO API

    Paid API
    5.1 Pricing on request Visit site
  25. 25

    SE Ranking

    by SE Ranking
    Paid API

    SE Ranking combines several SEO research and monitoring tools with API access. Compare the monthly plan limits against the number of projects, tracked keywords, audit pages, and API credits needed.

    4.9 From $103.20/mo (annual) · 14-day trial Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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