# Best SEO API in 2026: pricing compared

> DataForSEO is #1 on 3 of our 5 SEO API rankings. Below, each kind of SEO data, such as keywords or backlinks, has a line. Each line names the provider we score highest and what that provider's plan costs.

## The best API for each kind of SEO data

- [Best keyword research API in 2026](https://datacircle.dev/best-keyword-research-api): [DataForSEO](https://datacircle.dev/keyword-research-apis/dataforseo/top-up-from-50-pay-as-you-go-post-v3-dataforseo-labs-google-keyword-overview-live), $0.12 per 1,000 keywords
- [Best ranked keywords API in 2026](https://datacircle.dev/best-ranked-keywords-api): [DataForSEO](https://datacircle.dev/ranked-keywords-apis/dataforseo/top-up-from-50), $0.12 per 1,000 keywords
- [Best related keywords API in 2026](https://datacircle.dev/best-related-keywords-api): [Mangools](https://datacircle.dev/related-keywords-apis/mangools/15-monthly), $15 monthly
- [Best backlink API in 2026](https://datacircle.dev/best-backlink-api): [DataForSEO](https://datacircle.dev/backlink-apis/dataforseo/top-up-from-50), $0.036 per 1,000 backlinks
- [Best domain authority API in 2026](https://datacircle.dev/best-domain-authority-api): [AnyAPI](https://datacircle.dev/domain-authority-apis/anyapi/top-up-from-10-manual-top-up-post-v1-run-semrush-overview), $4.95 per 1,000 domains

Last updated: November 2, 2026. The page: https://datacircle.dev/best-seo-api.