Side by side
Ahrefs vs Semust API
Both stand on seo apis. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
Ahrefs covers core SEO research and auditing alongside APIs and content tools. Compare project, tracked-keyword, crawl-credit, and user allowances against the intended plan; no trial or refund policy is stated in the supplied information.
Visit Ahrefs 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.
Visit Semust APIThe facts
| Ahrefs | Semust API | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Web | API, Extension, Web |
| Lowest paid plan | Starter: $29 a month | Starter: $19 a month |
| Plans published | 10 | 5 |
| Maker | Ahrefs | Not published |
| Website | ahrefs.com | semust.com |
| On seo apis | #1 of 26 | #5 of 26 |
Ahrefs: what it does well
- Covers keyword, competitor, backlink, and rank research.
- Free plan includes site data and fixes.
- Content Explorer finds web mentions and link prospects.
- Annual payment saves up to 17%.
- Enterprise includes access management and audit logs.
What to know first
- Free plan limits Site Explorer and Site Audit access.
- Lite includes one user; additional users cost extra.
- Enterprise requires an annual commitment.
Semust API: what it does well
- SERP API returns real-time Google result data.
- Keyword API combines several metrics in one endpoint.
- Free Chrome extension checks links and JSON-LD.
- Integrations include Google Search Console and WordPress.
What to know first
- The free plan is a 14-day trial.
- Paid plans cap technical SEO scans at 20,000 URLs.
- Plans have specific limits for credits, projects, and reports.
Alternatives to Ahrefs Alternatives to Semust API The whole list

