Keyword Discovery vs Semust API
Keyword Discovery
keyworddiscovery.comSemust API
semust.comSide by side
| Figure | Keyword Discovery | Semust API |
|---|---|---|
| Price from | $41.66/mo | $19/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 5 | 5 |
| Spec score · SEO APIs | 8.0 (#10) | 7.8 (#12) |
Plans
Keyword Discovery
- StandardFree
- Professional$49.95 a month
- Enterprise XML API Access$495 a month
- Professional$499.95 a year
- Enterprise XML API Access$4,752 a year
Semust API
- FreeFree
- Starter$19 a month
- Business$35 a month
- Enterprise$59 a month
- Scale$129 a month
In their own words
Keyword Discovery
Keyword Discovery compiles keyword statistics and search phrases used to find products and services, including terms that bring traffic to competitors. Its tools cover historical trends, competitor research, Keyword Effectiveness Indicator analysis, PPC bid values, keyword density, and domain research. The maker says its database contains nearly 38 billion searches from more than 200 search engines worldwide; it says collection happens daily and the online database is updated monthly. Listed regional databases cover Australia, Canada, the Netherlands, France, Germany, Italy, Norway, Poland, Portugal, Spain, Sweden, the UK, and the US. Results can be saved in projects and copied, renamed, translated, or exported. Keywords can be imported from Excel, text files, meta tags, and URLs. An XML API can supply keyword suggestions to a website or support a research tool. The service is aimed at SEO, PPC campaigns, niche marketing, and domain parking. The Standard plan is free. Professional costs $49.95 a month, and Enterprise XML API Access costs $495 a month. Free trial users can see at most 10 results per query; paid subscribers can access up to 1,000 through the website interface. The service is available on the web and through an API.
Semust API
Semust API is the API offering within Semust, an AI-powered marketing and SEO platform for keyword research, content management, and digital marketing. Its SERP API returns real-time Google result data, including organic listings, ads, People Also Ask, AI Overview, images, and Knowledge Panel information. The Keyword Research API provides search volume, keyword difficulty, CPC, search intent, and related suggestions through one endpoint. Example requests use HTTP headers for API authentication, and the API uses REST. The wider platform lists rank tracking, technical SEO checks, backlink analysis, AI content generation, internal linking, and reporting. Connections include Google Search Console, Google Ads, Google Analytics, Meta Ads, WordPress, Bing Webmaster, and Yandex Metrica. A free Chrome extension can show page outlines, check link status codes, and inspect JSON-LD. The free plan is a 14-day trial without a credit card; paid plans start at $19 a month and have plan-specific credit, tracking, and project limits.