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KeywordTool.io pricing and alternatives: related keywords API, GET /v2/search/suggestions/google

KeywordTool.io's sitellms.txtBest related keywords API in 2026

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67% complete: 4 of the 6 key fields we checkSee the 6 fields
$0.059per 1,000 keywordsHalf of the 53 plans we rank by price cost $0.60 per 1,000 keywords or less. This plan is cheaper than 79% of the 53 plans.Mangools's $15 monthly plan costs the least per 1,000 keywords: $0.0001. Mangools charges for each page of results. We count 10,000 keywords on each page to get the $0.0001 price.Mangools, DataForSEO and SE Ranking are the best related keywords API providers in our benchmark.
Plan: Starter one of KeywordTool.io's 9 plans
Call: GET /v2/search/suggestions/google one of KeywordTool.io's 2 calls for this API
API: Related keywords API one of KeywordTool.io's 2 APIs

About this item

  • Freshness. We don't know how fresh this plan's data is.
  • 4 of the 6 key fields we check. Search volume, Monthly trend, Cost per click, Competition.
  • A monthly subscription. You pay $88 for 50 requests a day, enough for 50 pages. Calls stop once your requests run out. Unused requests expire: resets every 24 hours.
  • One call. You send keyword to GET /v2/search/suggestions/google. The call returns keywords like the one you send.
  • Who can get it: anyone 18 or over with a Keyword Tool account. Keep data: no limit. Use data: with conditions.

KeywordTool.io: related keywords API alternatives

We list other providers' plans closest to this plan in price per 1,000 keywords.

This planKeywordTool.io, $88 monthly, Starter, GET /v2/search/suggestions/googleSE Ranking, free trial, GET /v1/keywords/similarRankParse, $59 monthlyDataForSEO, top-up from $50, Pay as you go, POST /v3/keywords_data/bing/keywords_for_keywords/liveMangools, $30.50 monthly
$ per 1,000 keywords$0.059$0.00$0.02$0.03$0.051
Completeness67%83%50%67%83%
Billingmonthlyfreemonthlypay firstmonthly
Pay$88$0$59$50$30.50
Enough for50 pages a day10,000 results, once3,000 calls a monthabout 555 pages100 pages a day
Freshnessunknown1 monthunknownliveunknown
Who can get itanyone 18 or over with a Keyword Tool accountanyone who confirms an email address, a direct competitor of SE Ranking exceptedanyone with a valid email address and a Google Ads account connected to RankParseanyone not in Russia, Belarus, Cuba, Iran, Syria, Myanmar, North Korea or Russian-occupied Ukraineanyone of legal age to form a binding contract

Every related keywords API provider we score, ranked

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-29.

  1. api.keywordtool.io/v2/openapi.json
  2. keywordtool.io/api
  3. keywordtool.io/api.md
  4. keywordtool.io/fair-usage
  5. keywordtool.io/pro
  6. keywordtool.io/terms-service

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
  • Competition
  • Keyword difficulty, not in the answer
  • Search intent, not in the answer
Price
$ per 1,000 keywords$0.059
Perpage of 1,000
Billingmonthly
$ a month$88
Charges
Also pays forfrom the same budget: Search volume · Analyze competitors
Overage
Units caphard
In their words
Their pitchGet keyword suggestions from Google, YouTube, Bing, Microsoft Copilot, Perplexity, Amazon, eBay, App Store, Play Store, Instagram, X (Twitter), Reddit, Pinterest, Etsy, TikTok, Naver, and Google Trends.
Data
Keep datano limit
Use dataYou may use Service only for lawful purposes and in accordance with Terms. You agree not to use Service: In any way that violates any applicable national or international law or regulation. For the purpose of exploiting, harming, or attempting to exploit or harm minors in any way by exposing them to inappropriate content or otherwise. To transmit, or procure the sending of, any advertising or promotional material, including any "junk mail", "chain letter," "spam," or any other similar solicitation. To impersonate or attempt to impersonate Company, a Company employee, another user, or any other person or entity. In any way that infringes upon the rights of others, or in any way is illegal, threatening, fraudulent, or harmful, or in connection with any unlawful, illegal, fraudulent, or harmful purpose or activity. To engage in any other conduct that restricts or inhibits anyone's use or enjoyment of Service, or which, as determined by us, may harm or offend Company or users of Service or expose them to liability. Additionally, you agree not to: Use Service in any manner that could disable, overburden, damage, or impair Service or interfere with any other party's use of Service, including their ability to engage in real time activities through Service. Use any robot, spider, or other automatic device, process, or means to access Service for any purpose, including monitoring or copying any of the material on Service. [...]
Plan
Pay$88
You get50 requests a day
Enough for50 pages a day
Expiresresets every 24 hours
Rate limit
Per day50
Per second0.25
Batch1
The call
You sendkeyword. Optional: exclude, category, country, language, metrics, type, metrics_location, metrics_language, metrics_network, metrics_currency, complete
MethodGET
Path/v2/search/suggestions/google
About the plan
PlanStarter
Who can get itanyone 18 or over with a Keyword Tool account
The 10 fields the plan's answer can hold

keyword, search volume, monthly searches, search volume trend, cost per click, low top of page bid, high top of page bid, competition, device breakdown, total keywords

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