# kwrds.ai, free API plan, POST /keywords-with-volumes: Keyword research API

> The Keyword Research API allows you to retrieve valuable data about specific keywords, including search volume, cost-per-click (CPC), search intent, and competition level.

kwrds.ai's keyword research API on its Free API Plan. It costs $0.00 per 1,000 keywords. It returns 5 of the 6 key fields we check: Search volume, Monthly trend, Cost per click, Competition, Search intent.
We rank 45 plans by price. [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: as little as $0.0001. Mangools's $15 monthly plan covers up to 5,000,000 keywords a day.
[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 [Mangools](https://datacircle.dev/keyword-research-apis/mangools/15-monthly/llms.txt) are the best keyword research API providers in our benchmark.

- This page: https://datacircle.dev/keyword-research-apis/kwrds-ai/free-api-plan-post-keywords-with-volumes
- [Best keyword research API in 2026: pricing compared](https://datacircle.dev/best-keyword-research-api.txt)
- Get it: https://www.kwrds.ai/api
- Request: `POST https://keywordresearch.api.kwrds.ai/keywords-with-volumes`
- API key: with the plan, on https://www.kwrds.ai/api
- Its API docs: https://www.kwrds.ai/api/documentation/keyword-research
- Sold by: kwrds.ai (https://www.kwrds.ai)
- Checked: 2026-10-30

## In the answer

- Completeness: 83%
- Search volume: ✓
- Monthly trend: ✓
- Cost per click: ✓
- Competition: ✓
- Search intent: ✓

## Price

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

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: The Keyword Research API allows you to retrieve valuable data about specific keywords, including search volume, cost-per-click (CPC), search intent, and competition level.

## Data

- Freshness: live
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- You get: 1 request
- Enough for: 1 call

## Rate limit

- Batch: 1

## The call

- You send: search_question, search_country, Content-Type header "application/json". Optional: limit, vendor
- Method: POST
- Path: /keywords-with-volumes

## About the plan

- Plan: Free API Plan
- Who can get it: anyone with an account

## The 6 fields the plan's answer can hold

keyword, search volume, cost per click, monthly searches, search intent, competition

## kwrds.ai's plans (4)

- [kwrds.ai, free API plan, POST /keywords-with-volumes](https://datacircle.dev/keyword-research-apis/kwrds-ai/free-api-plan-post-keywords-with-volumes/llms.txt): $0.00 per 1,000, 83% complete, live
- [kwrds.ai, $49 monthly, Starter API Access, POST /keywords-with-volumes](https://datacircle.dev/keyword-research-apis/kwrds-ai/49-monthly-starter-api-access-post-keywords-with-volumes/llms.txt): $81.667 per 1,000, 83% complete, live
- [kwrds.ai, $99 monthly, Full API Access, POST /keywords-with-volumes](https://datacircle.dev/keyword-research-apis/kwrds-ai/99-monthly-full-api-access-post-keywords-with-volumes/llms.txt): $82.50 per 1,000, 83% complete, live
- [kwrds.ai, contact us, Higher limits or enterprise solutions, POST /keywords-with-volumes](https://datacircle.dev/keyword-research-apis/kwrds-ai/contact-us-higher-limits-or-enterprise-solutions-post-keywords-with-volumes/llms.txt): 83% complete, live

## kwrds.ai's calls for this API (2)

- `POST /keywords-with-volumes`: [kwrds.ai, free API plan, POST /keywords-with-volumes](https://datacircle.dev/keyword-research-apis/kwrds-ai/free-api-plan-post-keywords-with-volumes/llms.txt)
- `POST /search-volume`: [kwrds.ai, free API plan, POST /search-volume](https://datacircle.dev/keyword-research-apis/kwrds-ai/free-api-plan-post-search-volume/llms.txt)

## kwrds.ai's APIs (4)

- [kwrds.ai: related keywords API pricing, 4 plans](https://datacircle.dev/related-keywords-apis/kwrds-ai/free/llms.txt)
- [kwrds.ai: SERP API pricing, 4 plans](https://datacircle.dev/serp-apis/kwrds-ai/free/llms.txt)
- [kwrds.ai: ranked keywords API pricing, 4 plans](https://datacircle.dev/ranked-keywords-apis/kwrds-ai/free/llms.txt)
- [kwrds.ai: keyword research API pricing, 4 plans, POST /keywords-with-volumes](https://datacircle.dev/keyword-research-apis/kwrds-ai/free-api-plan-post-keywords-with-volumes/llms.txt)

## kwrds.ai: keyword research API alternatives

- [DataForSEO, top-up from $50, Pay as you go, POST /v3/keywords_data/bing/search_volume/live](https://datacircle.dev/keyword-research-apis/dataforseo/top-up-from-50-pay-as-you-go-post-v3-keywords-data-bing-search-volume-live/llms.txt): $90.00 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 2026-10-30.

- https://www.kwrds.ai/api
- https://www.kwrds.ai/api/documentation
- https://www.kwrds.ai/api/documentation/keyword-research
- https://www.kwrds.ai/terms