# Keyword Insights, $99 monthly: Related keywords API

> The integration point to automate your process

Keyword Insights's related keywords API on its Professional plan. It costs $0.495 per 1,000 keywords. It returns 4 of the 6 key fields we check: Search volume, Monthly trend, Cost per click, Competition.
We haven't run Keyword Insights through [our related keywords API benchmark](https://datacircle.dev/best-related-keywords-api.txt) yet.
Half of the 143 plans we rank by price cost $0.486 per 1,000 keywords or less. This plan costs less per 1,000 keywords than 48% of the 143 plans.
[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 the Datacircle benchmark.

- This page: https://datacircle.dev/related-keywords-apis/keyword-insights/99-monthly
- [Related keywords API: 4 providers compared on price and data](https://datacircle.dev/best-related-keywords-api.txt)
- Get it: https://www.keywordinsights.ai/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- Request: `POST https://api.keywordinsights.ai/api/keyword-discovery/order/`
- API key: with the plan, on https://www.keywordinsights.ai/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- Its API docs: https://docs.keywordinsights.ai/api/api-use-cases/public-api-keyword-discovery?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing#quick-start
- Sold by: Keyword Insights (https://www.keywordinsights.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 67%
- Search volume: ✓
- Monthly trend: ✓
- Cost per click: ✓
- Competition: ✓

## Price

- $ per 1,000 keywords: $0.495
- Per: page of 10,000
- Billing: monthly
- $ a month: $99

## Charges

- Also pays for: from the same budget: Keyword ranking advanced report · Batch interface for ranking advanced report · Content Briefs creation · Create the keyword content order in KWI system · Create the insights order in KWI system · Create a writer agent order

## In their words

- Their pitch: The integration point to automate your process

## Data

- Keep data: no limit
- Use data: By using this website/service, you warrant on behalf of yourself, your users, and other parties you represent that you will not: Modify, copy, prepare derivative works of, decompile, or reverse engineer any materials and software contained on this website, Remove any copyright or other proprietary notations from any materials and software on this website, Transfer the materials to another person or “mirror” the materials on any other server, Knowingly or negligently use this website or any of its associated services in a way that abuses or disrupts our networks or any other service Snippet Digital provides, Use this website or its associated services to transmit or publish any harassing, indecent, obscene, fraudulent, or unlawful material, Use this website or its associated services in violation of any applicable laws or regulations, Use this website in conjunction with sending unauthorised advertising or spam, Harvest, collect or gather user data without the user’s consent, or Use this website or its associated services in such a way that may infringe the privacy, intellectual property rights, or other rights of third parties.

## Plan

- Pay: $99
- You get: 20,000 credits a month
- Enough for: 20 pages a month
- Expires: at the end of each billing cycle

## Rate limit

- Batch: 1

## Speed

- Answer: by polling

## The call

- You send: seed_keyword, language, location. Optional: folder_id
- Method: POST
- Path: /api/keyword-discovery/order/

## About the plan

- Plan: Professional
- Who can get it: anyone

## The 18 fields the plan's answer can hold

keyword, search volume, monthly searches, cost per click, competition, competition level, source, relevancy score, clicks, click-through rate, impressions, position, keyword status, hidden, selected, keyword ID, order ID, total results

## Keyword Insights's plans (3)

- [Keyword Insights, $99 monthly](https://datacircle.dev/related-keywords-apis/keyword-insights/99-monthly/llms.txt): $0.495 per 1,000, 67% complete
- [Keyword Insights, $948 yearly](https://datacircle.dev/related-keywords-apis/keyword-insights/948-yearly/llms.txt): $0.395 per 1,000, 67% complete
- [Keyword Insights, contact us](https://datacircle.dev/related-keywords-apis/keyword-insights/contact-us/llms.txt): 67% complete

## Keyword Insights's calls (1)

- `POST /api/keyword-discovery/order/`: [Keyword Insights, $99 monthly](https://datacircle.dev/related-keywords-apis/keyword-insights/99-monthly/llms.txt)

## Keyword Insights's APIs (1)

- [Keyword Insights: related keywords API pricing, 3 plans](https://datacircle.dev/related-keywords-apis/keyword-insights/99-monthly/llms.txt)

## Keyword Insights: related keywords API alternatives

- [Ranxplorer, €132 pack, Sans abonnement 300 k, GET /v1/kwd/relatedsearches](https://datacircle.dev/related-keywords-apis/ranxplorer/132-pack-sans-abonnement-300-k-get-v1-kwd-relatedsearches/llms.txt): $0.495 per 1,000, 83% complete
- [SocQ, top-up from $5, Starter, POST /v1/seo/keyword-suggestions](https://datacircle.dev/related-keywords-apis/socq/top-up-from-5-starter-post-v1-seo-keyword-suggestions/llms.txt): $0.50 per 1,000, 100% complete
- [Keywords Everywhere, $500 pack, 2,000,000 credits, POST /v1/get_pasf_keywords](https://datacircle.dev/related-keywords-apis/keywords-everywhere/500-pack-2000000-credits-post-v1-get-pasf-keywords/llms.txt): $0.50 per 1,000, 0% complete
- [Ahrefs, $1,290 yearly, Lite, GET /v3/keywords-explorer/matching-terms, Matching terms](https://datacircle.dev/related-keywords-apis/ahrefs/1290-yearly-lite-get-v3-keywords-explorer-matching-terms-matching-terms/llms.txt): $0.537 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 2026-11-04.

- https://api.keywordinsights.ai/apidocs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://api.keywordinsights.ai/public_api_spec.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://changelog.keywordinsights.ai/new-and-improved-keyword-discovery-plus-ai-writer-agent-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://docs.keywordinsights.ai/account-management/pricing/subscription/universal-credits-explained.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://docs.keywordinsights.ai/api/api-key-authentication?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://docs.keywordinsights.ai/api/api-use-cases/public-api-keyword-discovery?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://www.keywordinsights.ai/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://www.keywordinsights.ai/terms-conditions?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing