Datacircle

SEOmonitor pricing: related keywords API

SEOmonitor's siteThis page as plain textRelated keywords API: the 7 best providers comparedSEOmonitor: related keywords API alternatives

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33% complete: 2 of the 6 key fields we checkSee the 6 fields
$0.00per 1,000 keywordsWe haven't run SEOmonitor through our related keywords API benchmark yet.This plan is free. We rank 194 plans for related keywords APIs by price. Half the plans cost $0.60 per 1,000 keywords or less.Keys.so's ₽34,900 monthly plan is the cheapest paid plan per 1,000 keywords. Keys.so's ₽34,900 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 monthly plan.Bing Webmaster Tools, DataForSEO and Mangools are the best related keywords API providers in the Datacircle benchmark.
Type a number to see the cheapest SEOmonitor plan for that many keywords. The table below then sorts the other plans by what each costs.
Plan: Free trial one of SEOmonitor's 3 plans
Call: GET /research/v3.0/related-keywords SEOmonitor's only call for this API
API: Related keywords API one of SEOmonitor's 8 APIs

About this item

  • A copy at most 30 days old. You get keyword data from SEOmonitor's database.
  • 2 of the 6 key fields we check. Search volume, Monthly trend.
  • Nothing to pay. You get up to 300,000 calls a month.
  • One call. You send campaign_id and keyword to GET /research/v3.0/related-keywords. You can also send limit, offset, order_by, order_direction and search. The call returns keywords like the one you send.
  • Who can get it: anyone with a valid business email. Keep data: no limit. Use data: with conditions.

SEOmonitor: related keywords API alternatives

SEOmonitor alternatives: other related keywords API providers by price

The table starts with SEOmonitor's cheapest paid plan. Next come plans from other providers with the price per 1,000 keywords closest to SEOmonitor's. Each plan in the table gives live data or data at most a month old.

SEOmonitor, €2,990 yearlyDataForSEO, top-up from $50, Pay as you go, POST /v3/keywords_data/google_ads/keywords_for_keywords/liveAnyAPI, pay as you go, Pay per call with x402 and MPP, POST /v1/run/seo.related_keywordsQuanticData, $299 monthlyOutlierKit, $1,999 yearly
$ per 1,000 keywords$0.00093$0.0045$0.16$0.167$0.833
Completeness33%67%100%0%33%
Billingyearlypay firstpay as you gomonthlyyearly
Pay€2,990$50per call$299$1,999
Enough for300,000 calls a monthabout 555 pagesas many as you pay forabout 1,785,714 results a month1,000 pages a month
Freshness30 dayslive1 monthlivelive
Who can get itanyone with a valid business emailanyone not in Russia, Belarus, Cuba, Iran, Syria, Myanmar, North Korea or Russian-occupied Ukraineanyone 18 or over, for business or professional use, not in an embargoed jurisdiction or on a restricted-party list, paying from a USDC wallet on Base (x402) or a Tempo wallet (MPP)anyoneanyone

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-06.

  1. api-docs.seomonitor.com/
  2. api-docs.seomonitor.com/api-23256208
  3. help.seomonitor.com/en/articles/2285726-seomonitor-terms-of-use
  4. help.seomonitor.com/en/articles/6824373-seomonitor-pricing-plans-billing-and-usage-limits
  5. seomonitor.com/apis-integrations
  6. seomonitor.com/pricing

Product details

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

  • Search volume
  • Monthly trend
  • Cost per click, not in the answer
  • Competition, not in the answer
  • Keyword difficulty, not in the answer
  • Search intent, not in the answer
Price
$ per 1,000 keywords$0.00
Perpage of 1,000
Billingfree
Charges
Start fee$0.00
Also pays for50 other calls
Not found
$ per 1,000$0.00
In their words
Their pitchAccess complete keyword data. Directly access our curated UK and US keyword database. Get all the keyword and domain data you need.
Data
Freshness30 days
Keep datano limit
Use dataTerms of Use, 6. Acceptable Use: "The Customer agrees not to: exceed published or communicated usage/rate limits, probe, scrape, or overload the Service, reverse engineer, copy, or create derivative works of the Platform, resell or provide the Service to third parties except as expressly permitted, or use the Service unlawfully or to infringe others' rights." 3. Eligibility and Accounts: "Accounts and credentials may not be shared outside the Customer's organisation or resold without our written [...]"
Plan
Pay$0
Enough for300,000 calls a month
Rate limit
Per day10,000
Per second10
Batch1
Speed
Answerin the call
The call
You sendcampaign_id, keyword. Optional: limit, offset, order_by, order_direction, search
MethodGET
Path/research/v3.0/related-keywords
About the plan
PlanFree trial
Who can get itanyone with a valid business email
The 4 fields the plan's answer can hold

keyword, search volume, monthly searches, keyword relevance

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