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Best SEO APIs in 2026

SEO APIs provide programmatic access to search and website data, such as rankings, backlinks, keywords, domains and historical records. They can support reporting, research and software integrations through API, web, browser extension, macOS, Linux or Windows tools.

27 apps
Research read 23 Sept 2026
How the order is worked out

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

Datacircle
by Datacircle
Free plan Web

7.2 Free: the data downloads in JSON or CSV with no key and no account Visit site
3

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
4

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
5

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
6

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
7

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
8

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
9

seofetch

Free plan APIWeb

6.8 From $49 Visit site
10

Semrush
by Semrush
Free plan API

6.7 Free plan · 7-day trial Visit site
11

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
12

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
13

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
14

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
15

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
16

backlinks.sh

Paid APIWeb

5.8 From $10 Visit site
17

Ranked AI API

Free trial APIWeb

5.8 From $4.99/mo · 7-day trial Visit site
18

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
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

DataForSEO Labs API

Paid APIWeb

5.6 From $0.02 Visit site
21

Moz API

Free plan

5.6 Free plan · paid from $20/mo Visit site
22

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
23

Keyword.com
by Keyword.com
Paid API

5.4 From $3/mo (annual) · 14-day trial Visit site
24

Newinterval
by Newinterval
Paid API

5.2 From $20/mo Visit site
25

SEO API

Paid API

5.1 Pricing on request 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

Compare free plans, trial terms and paid starting prices. Check the data type, rate limit and API format you need. If reading or changing code matters, review the open-source licence before choosing a tool.

Questions

What can an SEO API provide?

Depending on the service, it can provide rankings, backlink, keyword, domain or historical data for software and reports.

Are free SEO API plans available?

Yes. Google Search Console, Keyword Discovery and Keyword Tool list free plans. Check the limits and included data before relying on one.

Do SEO APIs offer trials?

Some services list free trials. GeoRanker and LinkResearchTools list 7-day trials.

What paid prices are listed?

Listed starting prices range from $0.02 for two DataForSEO APIs to $599 per month for LinkResearchTools. Other listed prices include $10, $49.95, $68 and $99 per month.

Which platforms can I use?

The category includes API, web, browser extension, macOS, Linux and Windows options. Check the platform listed for the service you plan to use.

Questions

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