Semust pricing: related keywords API

Name: Semust related keywords API
Brand: Semust

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33% complete: 2 of the 6 fields on our checklistSee the 6 fields

$0.00per 1,000 keywordsWe haven't run Semust through our related keywords API benchmark yet.This plan is free. We rank 226 plans for related keywords APIs by price. Half the plans cost $0.596 per 1,000 keywords or less. See the best free related keywords API plan.Keys.so's ₽34,900 (about $417) monthly plan is the cheapest paid plan per 1,000 keywords. Keys.so's ₽34,900 (about $417) monthly plan charges nothing per call. You get as many keywords as Keys.so's rate limit allows.seodata.dev's $4.99 monthly plan covers any number of keywords. seodata.dev's $4.99 monthly plan costs less up front than Keys.so's ₽34,900 (about $417) monthly plan.Bing Webmaster Tools, DataForSEO and Mangools are the best related keywords API providers in the Datacircle benchmark.

Plan: Free trial one of Semust's 2 plans

Call: POST /v1/keyword-data Semust's only call for this API

API: Related keywords API one of Semust's 11 APIs

About this item

Freshness. We don't know how fresh this plan's data is.
2 of the 6 fields on our checklist. Search volume, Competition.
Nothing to pay.
One call. You send keyword to POST /v1/keyword-data. You set match_type to "related". You can also send country, language and limit. The call returns the answer when the provider is quick. When the provider is slow, the call returns a job. You fetch the answer once the job is done.
Who can get it: anyone who signs up, no credit card required. Keep data: no API terms. Use data: no API terms.

The table starts with Semust's cheapest paid plan. Next come plans from other providers with the price per 1,000 keywords closest to Semust's.

	Semust, top-up	YepAPI, top-up, Pay as you go, POST /v1/seo/keywords/ideas	Citable, pay as you go, Pay per call, GET /v1/keyword-research	Ahrefs, $249 monthly, Standard, GET /v3/keywords-explorer/matching-terms, Matching terms	Keywords Everywhere, $8,000 pack, 50,000,000 credits, POST /v1/get_pasf_keywords
$ per 1,000 keywords	$0.30	$0.30	$0.30	$0.311	$0.32
Completeness	33%	100%	83%	50%	0%
Billing	pay first	pay first	pay as you go	monthly	pay first
Pay	any amount	any amount	per call	$249	$8,000
Enough for	as many as you pay for	as many as you pay for	as many as you pay for	800,000 results a month	25,000,000 results
Freshness	unknown	stored	unknown	unknown	unknown
Who can get it	anyone with a Semust account	anyone	anyone, with no account or API key, paying each call in USDC from a Solana wallet over x402	anyone with an Ahrefs account, only workspace owners and admins create API keys	anyone 13 or over with a Keywords Everywhere account

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-07.

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

Charges
Also pays for	from the same budget: SERP API · Google Images API · Technical SEO API · Backlinks API · Domain Research API · YouTube API · Trends API · On-Page API · Business Data API

Not found
$ per 1,000	$0.00

In their words
Their pitch	Manuel araştırma süreçlerinden ve karışık veri toplama işlerinden kurtulun. Semust Keyword Research API — arama hacmi, CPC, rekabet skoru, arama niyeti ve ilgili kelime önerilerini tek bir endpoint'te birleştiren SEO keyword API'si.

Data
Keep data	no API terms
Use data	no API terms

Plan
Pay	$0
Expires	14 days

Rate limit
Batch	1

Speed
Answer	in the call or by polling

The call
You send	keyword, match_type "related". Optional: country, language, limit
Method	POST
Path	/v1/keyword-data

About the plan
Plan	Free trial
Who can get it	anyone who signs up, no credit card required

The 12 fields the plan's answer can hold

keyword, search volume, CPC, competition, competition level, country, language, intent, related keywords, success, result count, cost