# Rankability, $97 monthly: Related keywords API

> Create and poll asynchronous Rankability Researcher jobs, understand pooled usage and caching, and read saved keyword projects.

Rankability's related keywords API on its Starter plan. It returns 4 of the 6 key fields we check: Search volume, Cost per click, Keyword difficulty, Search intent.
We haven't run Rankability through [our related keywords API benchmark](https://datacircle.dev/best-related-keywords-api.txt) yet.
This plan costs $97 a month. 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](https://datacircle.dev/related-keywords-apis/xmlriver/15000-monthly/llms.txt) 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](https://datacircle.dev/related-keywords-apis/mangools/15-monthly/llms.txt), [DataForSEO](https://datacircle.dev/related-keywords-apis/dataforseo/top-up-from-50-pay-as-you-go-post-v3-dataforseo-labs-google-keyword-ideas-live/llms.txt) and [AnyAPI](https://datacircle.dev/related-keywords-apis/anyapi/top-up-from-10-manual-top-up-post-v1-run-seo-related-keywords/llms.txt) are the best related keywords API providers in our benchmark.

- This page: https://datacircle.dev/related-keywords-apis/rankability/97-monthly
- [Related keywords API: 4 providers compared on price and data](https://datacircle.dev/best-related-keywords-api.txt)
- Get it: https://www.rankability.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- Request: `POST https://app.rankability.com/api/agent/v1/researcher/jobs`
- API key: with the plan, on https://www.rankability.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- Its API docs: https://help.rankability.com/api/api-researcher?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing#start-a-research-job
- Sold by: Rankability (https://www.rankability.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 67%
- Search volume: ✓
- Cost per click: ✓
- Keyword difficulty: ✓
- Search intent: ✓

## Price

- Billing: monthly
- $ a month: $97

## Charges

- Also pays for: from the same budget: 139 other calls: the 60 requests per minute per key

## In their words

- Their pitch: Create and poll asynchronous Rankability Researcher jobs, understand pooled usage and caching, and read saved keyword projects.

## Data

- Freshness: 7 days
- Keep data: no limit
- Use data: Section 8: "You may use the Services for legitimate business purposes, including work performed for your clients where your plan allows it. You may not, however, resell, sublicense, white-label, or commercially redistribute the Services, Content, or any Educational Services, or provide unauthorized third-party access to them." [...] "Authorized Automation must use valid credentials issued to your account, stay within your plan, the applicable documentation, and any published rate or usage limits, and comply with these Legal Terms." [...] "As a user of the Services, you agree not to:" "Systematically retrieve data or other content from the Services to create or compile, directly or indirectly, a collection, compilation, database, or directory without written permission from us." [...] "Engage in any automated use of the Services other than Authorized Automation [...]" (Legal Terms, rankability.com/terms)

## Plan

- Pay: $97

## Rate limit

- Per second: 1
- Batch: 20

## Speed

- Answer: by polling

## The call

- You send: topics. Optional: country, location, client_id, business_description, competitor_domains, target_audience, content_goals, include_gsc, use_knowledge_base, mode "discover", refresh, Idempotency-Key
- Method: POST
- Path: /researcher/jobs

## About the plan

- Plan: Starter
- Who can get it: businesses, for legitimate business purposes

## The 8 fields the plan's answer can hold

keyword, search volume, keyword difficulty, cost per click, search intent, opportunity score, KO score, cluster

## Rankability's plans (6)

- [Rankability, $97 monthly](https://datacircle.dev/related-keywords-apis/rankability/97-monthly/llms.txt): 67% complete, 7 days
- [Rankability, $297 monthly](https://datacircle.dev/related-keywords-apis/rankability/297-monthly/llms.txt): 67% complete, 7 days
- [Rankability, $497 monthly](https://datacircle.dev/related-keywords-apis/rankability/497-monthly/llms.txt): 67% complete, 7 days
- [Rankability, $970 yearly](https://datacircle.dev/related-keywords-apis/rankability/970-yearly/llms.txt): 67% complete, 7 days
- [Rankability, $2,970 yearly](https://datacircle.dev/related-keywords-apis/rankability/2970-yearly/llms.txt): 67% complete, 7 days
- [Rankability, $4,970 yearly](https://datacircle.dev/related-keywords-apis/rankability/4970-yearly/llms.txt): 67% complete, 7 days

## Rankability's calls for this API (1)

- `POST /researcher/jobs`: [Rankability, $97 monthly](https://datacircle.dev/related-keywords-apis/rankability/97-monthly/llms.txt)

## Rankability's APIs (9)

- [Rankability: SERP API pricing, 6 plans, Run a search intelligence query (bing)](https://datacircle.dev/serp-apis/rankability/97-monthly-starter-post-search-intelligence-query-run-a-search-intelligence-query-bing/llms.txt)
- [Rankability: SERP API pricing, 6 plans, Run a search intelligence query (google_organic)](https://datacircle.dev/serp-apis/rankability/97-monthly-starter-post-search-intelligence-query-run-a-search-intelligence-query-google-organic/llms.txt)
- [Rankability: Bing Copilot scraper API pricing, 6 plans](https://datacircle.dev/bing-copilot-scraper-apis/rankability/97-monthly/llms.txt)
- [Rankability: ChatGPT scraper API pricing, 6 plans](https://datacircle.dev/chatgpt-scraper-apis/rankability/97-monthly/llms.txt)
- [Rankability: Gemini scraper API pricing, 6 plans](https://datacircle.dev/gemini-scraper-apis/rankability/97-monthly/llms.txt)
- [Rankability: Google AI Mode scraper API pricing, 6 plans](https://datacircle.dev/google-ai-mode-scraper-apis/rankability/97-monthly/llms.txt)
- [Rankability: Google AI Overview scraper API pricing, 6 plans](https://datacircle.dev/google-ai-overview-scraper-apis/rankability/97-monthly/llms.txt)
- [Rankability: Perplexity scraper API pricing, 6 plans](https://datacircle.dev/perplexity-scraper-apis/rankability/97-monthly/llms.txt)
- [Rankability: domain authority API pricing, 6 plans](https://datacircle.dev/domain-authority-apis/rankability/97-monthly/llms.txt)
- [Rankability: related keywords API pricing, 6 plans](https://datacircle.dev/related-keywords-apis/rankability/97-monthly/llms.txt)

## Rankability: related keywords API alternatives

- [kwrds.ai, $49 monthly](https://datacircle.dev/related-keywords-apis/kwrds-ai/49-monthly/llms.txt): 67% complete, live
- [Omkar Cloud, $16 monthly](https://datacircle.dev/related-keywords-apis/omkar-cloud/16-monthly/llms.txt): 67% complete, live
- [Rush Analytics, $49 monthly](https://datacircle.dev/related-keywords-apis/rush-analytics/49-monthly/llms.txt): 17% 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 2026-11-04.

- https://help.rankability.com/account-and-settings/understanding-billing-and-credits.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://help.rankability.com/api/api-credits-rate-limits-and-errors.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://help.rankability.com/api/api-getting-started?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://help.rankability.com/api/api-researcher.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://help.rankability.com/researcher/discover-keywords.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://www.rankability.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://www.rankability.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://www.rankability.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing