Semust API
What it is
Semust API provides programmatic access to search and keyword data within Semust, an AI-powered marketing and SEO platform. Its SERP API returns real-time Google results, including organic listings, ads, People Also Ask, AI Overview, images, and Knowledge Panel data. The Keyword Research API returns search volume, keyword difficulty, CPC, search intent, and related suggestions through one endpoint. The API uses REST, and its example authenticates with SEMUST-API-USER and SEMUST-API-PASSWORD HTTP headers. The wider platform lists rank tracking, technical SEO checks, backlink analysis, AI content generation, internal linking, and reporting. Listed connections include Google Search Console, Google Ads, Google Analytics, Meta Ads, WordPress, Bing Webmaster, and Yandex Metrica. A free Chrome SEO Toolbar can show page outlines, check link status codes, and inspect JSON-LD. The Free plan is a 14-day trial with no credit card required. Paid plans start at $19 a month; plan limits vary for credits, tracking, projects, and team seats. Technical SEO scans are capped at 20,000 URLs on paid plans.
For and against
For
- SERP API returns multiple types of Google result data.
- Keyword API combines several metrics in one endpoint.
- REST API uses HTTP-header authentication in its example.
- Free SEO Toolbar checks links and JSON-LD.
Against
- Free plan lasts 14 days.
- Paid plans cap technical scans at 20,000 URLs.
- Projects, credits, tracking, and reports have plan-specific limits.
The verdict
Semust API combines SERP and keyword data endpoints with a broader SEO toolkit and integrations. The free trial requires no credit card, while paid plans impose different usage limits.
Who it suits
It suits developers seeking search and keyword data through an API, as well as content creators and people working to grow income through organic search. The broader platform may also suit users who want SEO tools and integrations alongside API access.
Plans and prices
Free
100 AI Credits/14 days · 15 Keyword Search/14 days · 15 Backlink Analysis/14 days · 15 SERP Analysis/14 days
Read 5 Oct 2026 · semust.com
Starter
1750 AI Credits/month · 100 Keyword Search/month · 250 Rank Tracking · 5 Project
Read 5 Oct 2026 · semust.com
Business
3250 AI Credits/month · 250 Keyword Search/month · 500 Rank Tracking · 10 Project
Read 5 Oct 2026 · semust.com
Enterprise
5400 AI Credits/month · 500 Keyword Search/month · 1000 Rank Tracking · 40 Project
Read 5 Oct 2026 · semust.com
Scale
18k AI Credits/month · 1250 Keyword Search/month · 2000 Rank Tracking · 100 Project
Read 5 Oct 2026 · semust.com
On the record
- API authentication
- The SERP API example authenticates requests with SEMUST-API-USER and SEMUST-API-PASSWORD HTTP headers.semust.com · read 5 Oct 2026
- Chrome extension
- The free Semust SEO Toolbar extension can show a page outline, check HTTP status codes for links, and inspect JSON-LD data.semust.com · read 5 Oct 2026
- Founder
- The About page identifies Ramazan Umutlu as the founder and says he has more than 10 years of full-time SEO experience.semust.com · read 5 Oct 2026
- Integrations
- The maker lists Google Search Console, Google Ads, Google Analytics, Meta Ads, WordPress, Bing Webmaster, and Yandex Metrica integrations or connections.semust.com · read 5 Oct 2026
- Keyword API
- The Keyword Research API provides search volume, keyword difficulty, CPC, search intent, and related keyword suggestions through one endpoint.semust.com · read 5 Oct 2026
- Location
- The site footer says Semust is made in Türkiye.semust.com · read 5 Oct 2026
- Plan limits
- The pricing page caps technical SEO scans at 20,000 URLs on the paid plans and shows plan-specific limits for projects, tracking credits, AI credits, and reports.semust.com · read 5 Oct 2026
- Product
- Semust describes itself as an AI-powered marketing and SEO platform for keyword research, content management, and digital marketing.semust.com · read 5 Oct 2026
- SEO tools
- The platform lists rank tracking, technical SEO checks, keyword research, backlink analysis, AI content generation, internal linking, and reporting among its tools.semust.com · read 5 Oct 2026
- SERP API
- Its SERP API returns real-time Google search result data, including organic results, ads, People Also Ask, AI Overview, images, and Knowledge Panel data.semust.com · read 5 Oct 2026
- Trial
- The Free plan is presented as a 14-day free trial and requires no credit card.semust.com · read 5 Oct 2026
- Who it serves
- Semust says it is built for people seeking to grow income through organic search and describes the platform as supporting content creators.semust.com · read 5 Oct 2026
