Based SEO
Based SEOSEO Tools
Dashboard
Tools
  • Keyword Overview
  • Keyword Finder
  • Backlinks
  • Site Audit
  • Domain Overview
  • AI Visibility
  • Saved Keywords
All APIs
  • Explore all
  • Keyword Research
  • Backlinks
  • Site Audit
  • SERP
  • AI Visibility (GEO)
  • Keywords Data
  • Domain Analytics
  • Content Analysis
  • Merchant
  • Business Data
  • App Data
  • Content Tools
Developers
  • Account
  • API & Agents
  • Settings

Explore the API

337 endpoints across 12 families. Run any of them here, or hit them directly and pay per request with x402.

56

Keyword Research

Volume, difficulty, CPC, ideas, and SERP competitors for any keyword.

from $0.01 / request

24

Backlinks

Referring domains, anchors, and the full link profile of any target.

from $0.02 / request

9

Site Audit

Crawl a site for technical issues, Core Web Vitals, and on-page problems.

from $0.000125 / request

67

SERP

Live search results across Google, Bing, YouTube, Maps, and more.

from $0.0006 / request

40

AI Visibility (GEO)

How ChatGPT, Claude, Gemini, and Perplexity cite your brand.

from $0.0006 / request

43

Keywords Data

Search volume, trends, and ad traffic straight from Google Ads and Bing.

from $0.0027 / request

12

Domain Analytics

Technology stacks and Whois data for any domain.

from $0.01 / request

12

Content Analysis

Brand mentions, sentiment, and citation data across the web.

from $0.024 / request

19

Merchant

Google Shopping and Amazon product, seller, and pricing data.

from $0.000001 / request

25

Business Data

Google Business, reviews, and listings from Trustpilot and Tripadvisor.

from $0.00004 / request

18

App Data

App Store and Google Play rankings, listings, and reviews.

from $0.0006 / request

9

Content Tools

Text summarization and language utilities.

from $0.00001 / request