# Rakko Keyword, ¥4,950 monthly: Keyword research API

> 入力キーワードの最新の月間検索数/SEO難易度などを調査できます。最新データを元に注力キーワードの優先順位付けを行いましょう。

Rakko Keyword's keyword research API on its Standard (monthly) plan. It costs $0.313 per 1,000 keywords. Rakko Keyword's docs list 5 of the 6 key fields we check. 4 are in the plan's price: Search volume, Monthly trend, Cost per click, Competition. 1 costs extra: Keyword difficulty.
¥49.50 per 1,000 keywords is $0.313 at the European Central Bank's rate of $6.3283 for ¥1,000.
We haven't run Rakko Keyword through [our keyword research API benchmark](https://datacircle.dev/best-keyword-research-api.txt) yet.
Half of the 213 plans we rank by price cost $0.80 per 1,000 keywords or less. This plan costs less per 1,000 keywords than 61% of the 213 plans.
[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/rakko-keyword/4950-monthly
- [Keyword research API: the 9 best providers compared](https://datacircle.dev/best-keyword-research-api.txt)
- Get it: https://rakkokeyword.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Request: `POST https://api.rakkokeyword.com/v1/search-volume`
- API key: with the plan, on https://rakkokeyword.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Its API docs: https://api.rakkokeyword.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing#/%E4%B8%80%E6%8B%AC%E3%82%AD%E3%83%BC%E3%83%AF%E3%83%BC%E3%83%89%E8%AA%BF%E6%9F%BB/SearchVolumeHistoryController_register
- Sold by: Rakko Keyword (https://rakkokeyword.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing)
- Checked: 2026-11-06

## In the answer

- Completeness: 83%
- Search volume: ✓
- Monthly trend: ✓
- Cost per click: ✓
- Competition: ✓
- Keyword difficulty: ✓ costs more

## Price

- $ per 1,000 keywords: $0.313
- Per: result
- Billing: monthly
- $ a month: $31.33

## Charges

- Extra fields: keyword difficulty: +$7.831
- Also pays for: from the same budget: サジェストキーワード取得 · 関連キーワード取得 · 潜在的な検索キーワード/質問（LSI/PAA）取得 · よくある質問検索取得 · 同時ランクインキーワード取得 · 語彙検索 · 獲得キーワード調査取得 · 獲得ページ調査取得 · 競合サイト抽出 · 獲得キーワード調査の推移取得 · 獲得キーワード調査の統計取得 · 獲得キーワード調査のAIO取得 · 一括サイト調査 · 集客コンテンツ検索 · 見出し抽出取得 · 共起語取得 · 検索順位チェック登録 · サイト検索

## Overage

- Units cap: hard

## In their words

- Their pitch: 入力キーワードの最新の月間検索数/SEO難易度などを調査できます。最新データを元に注力キーワードの優先順位付けを行いましょう。

## Data

- Freshness: 1 month
- Keep data: no limit
- Use data: "利用者が単一のAPIキーを用いて第三者向けの機能またはサービスとして提供しようとする場合には、事前に当社との個別のライセンス契約を締結しなければなりません。" [...] "利用者は、本APIの利用にあたり以下の行為をしてはなりません。" "APIキーの転売、貸与又は不特定多数への共有", "本サービスに過度の負荷をかける利用", "レート制限等を回避する目的での複数アカウントの利用", "違法サイト、スパム行為又は公序良俗に反するコンテンツでの利用", "当社と公式に提携しているかのような誤解を招く形での当社ロゴや名称の使用", "その他、本規約等に定める禁止行為" [...] "以下に該当する利用を行う場合は、第１９条第２項に従い、事前に当社との個別ライセンス契約を締結しなければなりません（ライセンス必要利用）。" "エンドユーザーが本APIまたは取得データを継続的に検索・閲覧・取得できるサービス・アプリケーションの提供", "取得データを実質的に再提供するサービスの提供（ホワイトラベルSaaSを含みます）", "単一のAPIキーを用いて複数のエンドユーザーに本API由来の機能・データを継続的に提供するサービス", "本サービスと競合する機能・用途を主目的として第三者に提供するサービス" [...] "利用者は、本APIに対し、エンドユーザーその他第三者の個人情報（個人データ、個人関連情報を含みます）、機密情報、その他特定の個人を識別できる情報を送信してはなりません。"

## Plan

- Pay: ¥4,950
- You get: 3,000 credits a month
- Enough for: 100,000 results a month
- Expires: 2 months

## Rate limit

- Per second: 1
- Batch: 50,000

## Speed

- Answer: by polling

## The call

- You send: keywords. Optional: seoDifficulty, dataCompletion, location, language, deduplicate, aggregationPeriodMonths
- Method: POST
- Path: /v1/search-volume

## About the plan

- Plan: Standard (monthly)
- Who can get it: anyone

## The 9 fields the plan's answer can hold

keyword, search volume, cost per click, competition, monthly searches, search volume trend, request ID, location name, first seen range

## Rakko Keyword's plans (6)

- [Rakko Keyword, ¥4,950 monthly](https://datacircle.dev/keyword-research-apis/rakko-keyword/4950-monthly/llms.txt): $0.313 per 1,000, 83% complete, 1 month
- [Rakko Keyword, ¥9,900 monthly](https://datacircle.dev/keyword-research-apis/rakko-keyword/9900-monthly/llms.txt): $0.298 per 1,000, 83% complete, 1 month
- [Rakko Keyword, ¥19,800 monthly](https://datacircle.dev/keyword-research-apis/rakko-keyword/19800-monthly/llms.txt): $0.278 per 1,000, 83% complete, 1 month
- [Rakko Keyword, ¥29,700 yearly](https://datacircle.dev/keyword-research-apis/rakko-keyword/29700-yearly/llms.txt): $0.157 per 1,000, 83% complete, 1 month
- [Rakko Keyword, ¥59,400 yearly](https://datacircle.dev/keyword-research-apis/rakko-keyword/59400-yearly/llms.txt): $0.149 per 1,000, 83% complete, 1 month
- [Rakko Keyword, ¥118,800 yearly](https://datacircle.dev/keyword-research-apis/rakko-keyword/118800-yearly/llms.txt): $0.139 per 1,000, 83% complete, 1 month

## Rakko Keyword's calls for this API (1)

- `POST /v1/search-volume`: [Rakko Keyword, ¥4,950 monthly](https://datacircle.dev/keyword-research-apis/rakko-keyword/4950-monthly/llms.txt)

## Rakko Keyword's APIs (4)

- [Rakko Keyword: search autocomplete API pricing, 6 plans, POST /v1/suggest-keywords, サジェストキーワード取得, Amazon](https://datacircle.dev/search-autocomplete-apis/rakko-keyword/4950-monthly-standard-monthly-post-v1-suggest-keywords-amazon/llms.txt)
- [Rakko Keyword: search autocomplete API pricing, 6 plans, POST /v1/suggest-keywords, サジェストキーワード取得, Bing](https://datacircle.dev/search-autocomplete-apis/rakko-keyword/4950-monthly-standard-monthly-post-v1-suggest-keywords-bing/llms.txt)
- [Rakko Keyword: search autocomplete API pricing, 6 plans, POST /v1/suggest-keywords, サジェストキーワード取得, Google](https://datacircle.dev/search-autocomplete-apis/rakko-keyword/4950-monthly-standard-monthly-post-v1-suggest-keywords-google/llms.txt)
- [Rakko Keyword: search autocomplete API pricing, 6 plans, POST /v1/suggest-keywords, サジェストキーワード取得, YouTube](https://datacircle.dev/search-autocomplete-apis/rakko-keyword/4950-monthly-standard-monthly-post-v1-suggest-keywords-youtube/llms.txt)
- [Rakko Keyword: keyword research API pricing, 6 plans](https://datacircle.dev/keyword-research-apis/rakko-keyword/4950-monthly/llms.txt)
- [Rakko Keyword: ranked keywords API pricing, 6 plans](https://datacircle.dev/ranked-keywords-apis/rakko-keyword/4950-monthly/llms.txt)
- [Rakko Keyword: related keywords API pricing, 6 plans](https://datacircle.dev/related-keywords-apis/rakko-keyword/4950-monthly/llms.txt)

## Rakko Keyword: keyword research API alternatives

- [SpyFu, $2,244 yearly, Team / Agency, POST /apis/keyword_api/v2/related/getKeywordInformation](https://datacircle.dev/keyword-research-apis/spyfu/2244-yearly-team-agency-post-apis-keyword-api-v2-related-getkeywordinformation/llms.txt): $0.20 per 1,000, 67% complete, 1 month
- [Rush Analytics, $2,868 yearly, Agency (annual), POST /create/wordstat](https://datacircle.dev/keyword-research-apis/rush-analytics/2868-yearly-agency-annual-post-create-wordstat/llms.txt): $0.316 per 1,000, 17% complete, live
- [WordRadar, $99 pack](https://datacircle.dev/keyword-research-apis/wordradar/99-pack/llms.txt): $0.33 per 1,000, 0% complete, 24 hours
- [Omkar Cloud, $148 monthly, Scale Plan, GET /keywords/overview](https://datacircle.dev/keyword-research-apis/omkar-cloud/148-monthly-scale-plan-get-keywords-overview/llms.txt): $0.37 per 1,000, 67% complete, live

## 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://api.rakkokeyword.com/api-docs.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://api.rakkokeyword.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://api.rakkokeyword.com/docs/swagger-ui-init.js?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://rakkokeyword.com/knowledge/9510/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://rakkokeyword.com/knowledge/9777/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://rakkokeyword.com/knowledge/qa/paid-plan-qa?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://rakkokeyword.com/knowledge/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://rakkokeyword.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing