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YepAPI pricing: related keywords API, POST /v1/seo/keywords/related

YepAPI's sitellms.txtRelated keywords API: 4 providers compared on price and dataYepAPI: related keywords API alternatives

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100% complete: all 6 key fields we checkSee the 6 fields
$0.00per 1,000 keywordsWe haven't run YepAPI through our related keywords API benchmark yet.This plan is free. We rank 143 plans for related keywords APIs by price. Half the plans cost $0.486 per 1,000 keywords or less.XMLRiver's ₽15,000 monthly plan is the cheapest paid plan per 1,000 keywords: $0.00009. XMLRiver charges for each page of results. We count 2,000 keywords on each page to get the $0.00009 price.Mangools, DataForSEO and AnyAPI are the best related keywords API providers in our benchmark.
Plan: Free credit one of YepAPI's 2 plans
Call: POST /v1/seo/keywords/related one of YepAPI's 2 calls for this API
API: Related keywords API one of YepAPI's 36 APIs

About this item

  • Freshness. We don't know how fresh this plan's data is.
  • All 6 key fields we check. Search volume, Monthly trend, Cost per click, Competition, Keyword difficulty, Search intent.
  • Nothing to pay. You get $5 of credit once, enough for about 16,666 results. Calls stop once your credit runs out.
  • One call. You send keyword to POST /v1/seo/keywords/related. You can also send limit, location_code, language, include_clickstream, filters, match and sort. The call returns keywords like the one you send.
  • Anyone can get it. Keep data: no limit. Use data: with conditions.

YepAPI: related keywords API alternatives

YepAPI alternatives: every related keywords API provider ranked

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

YepAPI, top-up, Pay as you go, POST /v1/seo/keywords/relatedQuanticData, $79 monthlyRanxplorer, €2,500 pack, Sans abonnement 10 M, GET /v1/kwd/relatedsearchesAhrefs, $249 monthly, Standard, GET /v3/keywords-explorer/matching-terms, Matching termsKeywords Everywhere, $8,000 pack, 50,000,000 credits, POST /v1/get_pasf_keywords
$ per 1,000 keywords$0.30$0.253$0.281$0.311$0.32
Completeness100%0%83%50%0%
Billingpay firstmonthlypay firstmonthlypay first
Payany amount$79€2,500$249$8,000
Enough foras many as you pay for312,500 results a month10,000,000 results800,000 results a month25,000,000 results
Freshnessunknownliveunknownunknownunknown
Who can get itanyoneanyoneanyoneanyone with an Ahrefs account, only workspace owners and admins create API keysanyone 13 or over with a Keywords Everywhere account

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

  1. docs.yepapi.com/getting-started/billing
  2. docs.yepapi.com/llms-full.txt
  3. docs.yepapi.com/llms.txt
  4. docs.yepapi.com/seo-keywords/keywords-related
  5. yepapi.com
  6. yepapi.com/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
  • Cost per click
  • Competition
  • Keyword difficulty
  • Search intent
Price
$ per 1,000 keywords$0.00
Perresult
Billingfree
Charges
Start fee$0.00
Also pays forfrom the same budget: 154 other calls
Overage
Units caphard
Not found
$ per 1,000$0.00
In their words
Their pitchRelated keywords for a seed keyword
Data
Keep datano limit
Use dataYou agree not to use YepAPI to: Violate any applicable law or regulation, Infringe on intellectual property rights of any third party, Transmit malicious code, spam, or abusive content, Attempt to reverse-engineer, scrape, or resell our service, Exceed reasonable usage patterns or abuse rate limits
Plan
Pay$0
You get$5
Enough forabout 16,666 results, once
Rate limit
Batch1
Speed
Answerin the call
The call
You sendkeyword. Optional: limit, location_code, language, include_clickstream, filters, match, sort
MethodPOST
Path/v1/seo/keywords/related
About the plan
PlanFree credit
Who can get itanyone
The 13 fields the plan's answer can hold

seed keyword, keyword, search volume, cost per click, keyword difficulty, competition, competition level, main intent, top results average backlinks, top results average referring domains, SERP item types, search results count, monthly searches

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