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SandBase pricing: related keywords API, semrush/question-keywords

SandBase's sitellms.txtBest related keywords API in 2026: providers comparedSandBase: 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 rank 82 plans by price. 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: Start one of SandBase's 3 plans
Call: POST /v1/api/semrush/question-keywords one of SandBase's 5 calls for this API
API: Related keywords API one of SandBase's 81 APIs

About this item

  • Freshness. We don't know how fresh this plan's data is.
  • 2 of the 6 key fields we check. Search volume, Cost per click.
  • Nothing to pay.
  • One call. You send database and phrase to POST /v1/api/semrush/question-keywords. The call returns keywords like the one you send.
  • Who can get it: anyone at least 18 and legally able to enter a contract. Keep data: no limit. Use data: with conditions.

SandBase: related keywords API alternatives

SandBase alternatives: every related keywords API provider ranked

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

This planSandBase, free, Start, POST /v1/api/semrush/question-keywordsMangools, freeDataForSEO, free, $1 trial credit, POST /v3/dataforseo_labs/google/keyword_ideas/liveAnyAPI, free trial key, POST /v1/run/seo.related_keywordsSE Ranking, free trial, GET /v1/keywords/questions
$ per 1,000 keywords$0.00$0.00$0.00$0.00$0.00
Completeness33%83%100%100%100%
Billingfreefreefreefreefree
Pay$0$0$0$0$0
Enough fornot published5 pages a dayabout 8,333 results, onceabout 312 results, once10,000 results, once
Freshnessunknownunknown1 month1 month1 month
Who can get itanyone at least 18 and legally able to enter a contractanyone of legal age to form a binding contractnew accounts, one each, not in Russia, Belarus, Cuba, Iran, Syria, Myanmar, North Korea or Russian-occupied Ukraineanyone 18 or over, with no account, for business or professional use, not in an embargoed jurisdiction or on a restricted-party listanyone who confirms an email address, a direct competitor of SE Ranking excepted

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-03.

  1. sandbase.ai/apis/semrush/question-keywords.md
  2. sandbase.ai/docs/admin/billing
  3. sandbase.ai/docs/guides/billing
  4. sandbase.ai/docs/guides/concurrency-limits
  5. sandbase.ai/docs/guides/rate-limiting
  6. sandbase.ai/llms-full.txt
  7. sandbase.ai/llms.txt
  8. sandbase.ai/pricing
  9. sandbase.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, not in the answer
  • Keyword difficulty, not in the answer
  • Search intent, not in the answer
Price
$ per 1,000 keywords$0.00
Perpage, size not stated
Billingfree
Charges
Also pays forfrom the same budget: 2,286 other calls
Not found
$ per 1,000$0.00
In their words
Their pitchQuestion-form keyword ideas for a seed phrase, with search volume, CPC and competition.
Data
Keep datano limit
Use dataYou may use outputs to the extent allowed by applicable law and the relevant model, API, dataset or content license. [...] Verify rights before commercial use, publication or distribution. [...] Access to a search, scraping or social-data API is not permission to bypass access controls, infringe a platform’s terms or process personal information unlawfully. Public availability of data does not remove your obligations to the people or rights holders concerned. [...] Do not use SandBase or allow your users to use it for: [...] Infringing intellectual property, privacy, publicity or confidentiality rights, unlawful surveillance, doxxing or collection of personal information, [...] Circumventing safety systems, identity checks, billing, quotas, rate limits or access restrictions, exploiting trials, coupons or promotional credits.
Plan
Pay$0
Rate limit
Concurrent2
Batch1
Speed
Answerin the call
The call
You senddatabase, phrase
MethodPOST
Path/v1/api/semrush/question-keywords
About the plan
PlanStart
Who can get itanyone at least 18 and legally able to enter a contract
The 3 fields the plan's answer can hold

keyword, search volume, cost per click

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