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kwrds.ai pricing and alternatives: related keywords API

kwrds.ai's sitellms.txtBest related keywords API in 2026: pricing compared

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67% complete: 4 of the 6 key fields we checkSee the 6 fields
$0.00per 1,000 keywordsWe rank 66 plans by price. Mangools's $15 monthly plan is the cheapest paid plan 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: Free API Plan one of kwrds.ai's 4 plans
Call: POST /related-keywords kwrds.ai's only call for this API
API: Related keywords API one of kwrds.ai's 4 APIs

About this item

  • Live. kwrds.ai finds keywords like the keyword you send when you call the API.
  • 4 of the 6 key fields we check. Search volume, Cost per click, Competition, Search intent.
  • Nothing to pay. You get 1 request, enough for 1 page.
  • One call. You send search_question and search_country to POST /related-keywords. You set the Content-Type header to "application/json". You can also send limit. The call returns keywords like the one you send.
  • Who can get it: anyone with an account. Keep data: no API terms. Use data: no API terms.

kwrds.ai: related keywords API alternatives

We list other providers' plans closest to this plan in price per 1,000 keywords. Each plan in the table gives live data.

This plankwrds.ai, freeDataForSEO, free, $1 trial credit, POST /v3/keywords_data/bing/keywords_for_keywords/live
$ per 1,000 keywords$0.00$0.00
Completeness67%67%
Billingfreefree
Pay$0$0
Enough for1 pageabout 11 pages, once
Freshnesslivelive
Who can get itanyone with an accountnew accounts, one each, not in Russia, Belarus, Cuba, Iran, Syria, Myanmar, North Korea or Russian-occupied Ukraine

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 2026-10-30.

  1. kwrds.ai/api
  2. kwrds.ai/api/documentation
  3. kwrds.ai/api/documentation/related-keywords
  4. kwrds.ai/terms

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, not in the answer
  • Cost per click
  • Competition
  • Keyword difficulty, not in the answer
  • Search intent
Price
$ per 1,000 keywords$0.00
Perpage, size not stated
Billingfree
Charges
Also pays fornothing else
Not found
$ per 1,000$0.00
In their words
Their pitchThe Related Keywords API allows you to retrieve a list of keywords related to a given keyword, along with their search volumes, CPC, search intent, and competition level.
Data
Freshnesslive
Keep datano API terms
Use datano API terms
Plan
Pay$0
You get1 request
Enough for1 page
Rate limit
Batch1
The call
You sendsearch_question, search_country, Content-Type header "application/json". Optional: limit
MethodPOST
Path/related-keywords
About the plan
PlanFree API Plan
Who can get itanyone with an account
The 6 fields the plan's answer can hold

keyword, search volume, cost per click, search intent, competition, keyword source

Best GTM APIs