# Semust, free: Keyword research API

> Manuel araştırma süreçlerinden ve karışık veri toplama işlerinden kurtulun. Semust Keyword Research API — arama hacmi, CPC, rekabet skoru, arama niyeti ve ilgili kelime önerilerini tek bir endpoint'te birleştiren SEO keyword API'si.

Semust's Free trial plan for the keyword research API costs $0.00 per 1,000 keywords. Semust's docs list 2 of the 6 fields on our checklist: Search volume, Competition.
We haven't run Semust through [our keyword research API benchmark](https://datacircle.dev/best-keyword-research-api.txt) yet.
This plan is free. We rank 290 plans for keyword research APIs by price. Half the plans cost $1.543 per 1,000 keywords or less. [See the best free keyword research API plan.](https://datacircle.dev/best-keyword-research-api.txt)
[AppDrift's $14.99 monthly plan](https://datacircle.dev/keyword-research-apis/appdrift/14-99-monthly/llms.txt) costs the least per 1,000 keywords. AppDrift's keyword research API costs nothing beyond the plan price.
[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 AppDrift's $14.99 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), [AppDrift](https://datacircle.dev/keyword-research-apis/appdrift/14-99-monthly/llms.txt) and [Bing Webmaster Tools](https://datacircle.dev/keyword-research-apis/bing-webmaster-tools/free-get-webmaster-api-svc-json-getkeywordstats/llms.txt) are the best keyword research API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/keyword-research-apis/semust/free
- [Keyword research API: the 13 best providers compared](https://datacircle.dev/best-keyword-research-api.txt)
- Get it: https://semust.com/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Request: `POST https://data.semust.com/v1/keyword-data`
- API key: with the plan, on https://semust.com/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Its API docs: https://semust.com/en/docs/api/keyword-data?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Sold by: Semust (https://semust.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 33%
- Search volume: ✓
- Competition: ✓

## Price

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

## Charges

- Also pays for: from the same budget: SERP API · Google Images API · Technical SEO API · Backlinks API · Domain Research API · YouTube API · Trends API · On-Page API · Business Data API

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Manuel araştırma süreçlerinden ve karışık veri toplama işlerinden kurtulun. Semust Keyword Research API — arama hacmi, CPC, rekabet skoru, arama niyeti ve ilgili kelime önerilerini tek bir endpoint'te birleştiren SEO keyword API'si.

## Data

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

## Plan

- Pay: $0
- Expires: 14 days

## Rate limit

- Batch: 1

## Speed

- Answer: in the call or by polling

## The call

- You send: keyword, match_type "exact_match". Optional: country, language
- Method: POST
- Path: /v1/keyword-data

## About the plan

- Plan: Free trial
- Who can get it: anyone who signs up, no credit card required

## The 12 fields the plan's answer can hold

keyword, search volume, CPC, competition, competition level, country, language, intent, related keywords, success, result count, cost

## Semust's plans (2)

- [Semust, free](https://datacircle.dev/keyword-research-apis/semust/free/llms.txt): $0.00 per 1,000, 33% complete
- [Semust, top-up](https://datacircle.dev/keyword-research-apis/semust/top-up/llms.txt): $10.00 per 1,000, 33% complete

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

- `POST /v1/keyword-data`: [Semust, free](https://datacircle.dev/keyword-research-apis/semust/free/llms.txt)

## Semust's APIs (11)

- [Semust: image search API pricing, 2 plans](https://datacircle.dev/image-search-apis/semust/free/llms.txt)
- [Semust: SERP API pricing, 2 plans](https://datacircle.dev/serp-apis/semust/free/llms.txt)
- [Semust: Local business reviews API pricing, 2 plans](https://datacircle.dev/local-business-reviews-apis/semust/free/llms.txt)
- [Semust: Local business search API pricing, 2 plans](https://datacircle.dev/local-business-search-apis/semust/free/llms.txt)
- [Semust: backlink API pricing, 2 plans](https://datacircle.dev/backlink-apis/semust/free/llms.txt)
- [Semust: domain authority API pricing, 2 plans](https://datacircle.dev/domain-authority-apis/semust/free/llms.txt)
- [Semust: keyword research API pricing, 2 plans](https://datacircle.dev/keyword-research-apis/semust/free/llms.txt)
- [Semust: ranked keywords API pricing, 2 plans](https://datacircle.dev/ranked-keywords-apis/semust/free/llms.txt)
- [Semust: related keywords API pricing, 2 plans](https://datacircle.dev/related-keywords-apis/semust/free/llms.txt)
- [Semust: web scraping API pricing, 2 plans](https://datacircle.dev/web-scraping-apis/semust/free/llms.txt)
- [Semust: video search API pricing, 2 plans](https://datacircle.dev/video-search-apis/semust/free/llms.txt)

## Semust: keyword research API alternatives

- [Trends MCP, $49 monthly, Pro, POST /api, Get Time Series](https://datacircle.dev/keyword-research-apis/trends-mcp/49-monthly-pro-post-api-get-time-series/llms.txt): $9.80 per 1,000, 33% complete
- [Answer Socrates, $2,990 yearly](https://datacircle.dev/keyword-research-apis/answer-socrates/2990-yearly/llms.txt): $9.967 per 1,000, 0% complete, live
- [1Lookup, $19,990 yearly, Enterprise (annual), POST /keyword-metrics](https://datacircle.dev/keyword-research-apis/1lookup/19990-yearly-enterprise-annual-post-keyword-metrics/llms.txt): $9.995 per 1,000, 33% complete
- [Wordtracker, contact us](https://datacircle.dev/keyword-research-apis/wordtracker/contact-us/llms.txt): $10.00 per 1,000, 33% 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 2026-11-07.

- https://semust.com/api-platform/keyword-research-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://semust.com/en/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://semust.com/en/docs/api/keyword-data?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://semust.com/en/docs/api/rate-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://semust.com/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://semust.com/en/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing