# Word-Keeper, free: Keyword research API

> Скоростной парсер фраз и частотностей из Яндекс Wordstat

Word-Keeper's keyword research API on its 50 free limits plan. It costs $0.00 per 1,000 keywords. Word-Keeper's docs list 1 of the 6 key fields we check: Search volume.
We haven't run Word-Keeper through [our keyword research API benchmark](https://datacircle.dev/best-keyword-research-api.txt) yet.
This plan is free. We rank 213 plans for keyword research APIs by price. Half the plans cost $0.80 per 1,000 keywords or less.
[Mangools's $15 monthly plan](https://datacircle.dev/keyword-research-apis/mangools/15-monthly/llms.txt) is the cheapest paid plan per 1,000 keywords. Mangools's $15 monthly plan covers up to 5,000,000 keywords a day.
[seodata.dev's $4.99 monthly plan](https://datacircle.dev/keyword-research-apis/seodata-dev/4-99-monthly/llms.txt) covers any number of keywords. seodata.dev's $4.99 monthly plan costs less up front than Mangools's $15 monthly plan.
[DataForSEO](https://datacircle.dev/keyword-research-apis/dataforseo/top-up-from-50-pay-as-you-go-post-v3-dataforseo-labs-google-keyword-overview-live/llms.txt), [Bing Webmaster Tools](https://datacircle.dev/keyword-research-apis/bing-webmaster-tools/free-get-webmaster-api-svc-json-getkeywordstats/llms.txt) and [seodata.dev](https://datacircle.dev/keyword-research-apis/seodata-dev/4-99-monthly/llms.txt) are the best keyword research API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/keyword-research-apis/word-keeper/free
- [Keyword research API: the 9 best providers compared](https://datacircle.dev/best-keyword-research-api.txt)
- Get it: https://word-keeper.ru?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Request: `POST https://word-keeper.ru/api/create_freqDiff`
- API key: with the plan, on https://word-keeper.ru?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Its API docs: https://word-keeper.ru/doc/api_multi?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Sold by: Word-Keeper (https://word-keeper.ru?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing)
- Checked: 2026-11-06

## In the answer

- Completeness: 17%
- Search volume: ✓

## Price

- $ per 1,000 keywords: $0.00
- Per: result
- Billing: free

## Charges

- Start fee: $0.00
- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Скоростной парсер фраз и частотностей из Яндекс Wordstat

## Data

- Keep data: no limit
- Use data: Договор-оферта, 7.2 Пользователь имеет право: 7.2.2 «Использовать предоставленные сервисом инструменты в соответствии со своими нуждами для получения аналитической информации, которую они предоставляют.» 7.1 Пользователь обязуется: 7.1.2 «Не злоупотреблять предоставленными Пользователю возможностями по использованию инструментов по Договору, в частности, не использовать инструменты с целью принести ущерб третьим лицам или Сервису.» 7.1.4 «Не передавать третьим лицам свой логин и пароль. [...]» 8.2 «Пользователь принимает на себя ответственность за любые претензии третьих лиц, связанные с получением, обработкой и использованием информации, полученной в ходе обработки данных на сайте Исполнителя.»

## Plan

- Pay: ₽0
- You get: 50 credits
- Enough for: 50 results
- Expires: 1 week

## Rate limit

- Batch: 1,000

## Speed

- Answer: by polling

## The call

- You send: text, geo. Optional: name, debug
- Method: POST
- Path: /api/create_freqDiff

## About the plan

- Plan: 50 free limits
- Who can get it: anyone who registers and verifies their email address

## The 2 fields the plan's answer can hold

keyword, search volume

## Word-Keeper's plans (4)

- [Word-Keeper, free](https://datacircle.dev/keyword-research-apis/word-keeper/free/llms.txt): $0.00 per 1,000, 17% complete
- [Word-Keeper, ₽749 monthly](https://datacircle.dev/keyword-research-apis/word-keeper/749-monthly/llms.txt): $0.358 per 1,000, 17% complete
- [Word-Keeper, ₽1,690 monthly](https://datacircle.dev/keyword-research-apis/word-keeper/1690-monthly/llms.txt): $0.288 per 1,000, 17% complete
- [Word-Keeper, ₽4,390 monthly](https://datacircle.dev/keyword-research-apis/word-keeper/4390-monthly/llms.txt): $0.25 per 1,000, 17% complete

## Word-Keeper's calls (1)

- `POST /api/create_freqDiff`: [Word-Keeper, free](https://datacircle.dev/keyword-research-apis/word-keeper/free/llms.txt)

## Word-Keeper's APIs (1)

- [Word-Keeper: keyword research API pricing, 4 plans](https://datacircle.dev/keyword-research-apis/word-keeper/free/llms.txt)

## Word-Keeper: keyword research API alternatives

- [XMLRiver, ₽5,000 monthly](https://datacircle.dev/keyword-research-apis/xmlriver/5000-monthly/llms.txt): $0.239 per 1,000, 33% complete
- [Just-Magic, ₽2,500 monthly](https://datacircle.dev/keyword-research-apis/just-magic/2500-monthly/llms.txt): $0.239 per 1,000, 17% complete
- [Keywords Everywhere, $500 pack](https://datacircle.dev/keyword-research-apis/keywords-everywhere/500-pack/llms.txt): $0.25 per 1,000, 67% complete
- [Ahrefs, $2,490 yearly, Standard, GET /v3/keywords-explorer/overview, Overview](https://datacircle.dev/keyword-research-apis/ahrefs/2490-yearly-standard-get-v3-keywords-explorer-overview-overview/llms.txt): $0.259 per 1,000, 50% complete

## 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.

- https://word-keeper.ru?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://word-keeper.ru/doc/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://word-keeper.ru/doc/api_multi?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://word-keeper.ru/doc/proverka-chastotnosti-s-proizvolnymi-operatorami?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://word-keeper.ru/doc/vidy-chastotnostey-Wordstat?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://word-keeper.ru/rules?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing