# YepAPI, free credit, POST /v1/seo/keywords: Keyword research API

> Bulk keyword metrics (volume, CPC, difficulty, intent, trends)

YepAPI's keyword research API on its Free credit plan. It costs $0.00 per 1,000 keywords. It returns all 6 key fields we check: Search volume, Monthly trend, Cost per click, Competition, Keyword difficulty, Search intent.
We haven't run YepAPI through [our keyword research API benchmark](https://datacircle.dev/best-keyword-research-api.txt) yet.
This plan is free. We rank 130 plans for keyword research APIs by price. Half the plans cost $1.797 per 1,000 keywords or less.
[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/yepapi/free-credit-post-v1-seo-keywords
- [Keyword research API: 4 providers compared on price and data](https://datacircle.dev/best-keyword-research-api.txt)
- Get it: https://docs.yepapi.com/getting-started/billing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Request: `POST https://api.yepapi.com/v1/seo/keywords`
- API key: with the plan, on https://docs.yepapi.com/getting-started/billing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Its API docs: https://docs.yepapi.com/seo-keywords/keywords?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Sold by: YepAPI (https://www.yepapi.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 100%
- Search volume: ✓
- Monthly trend: ✓
- Cost per click: ✓
- Competition: ✓
- Keyword difficulty: ✓
- Search intent: ✓

## Price

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

## Charges

- Also pays for: from the same budget: 154 other calls

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Bulk keyword metrics (volume, CPC, difficulty, intent, trends)

## Data

- Keep data: no limit
- Use data: You agree not to use YepAPI to: Violate any applicable law or regulation, Infringe on intellectual property rights of any third party, Transmit malicious code, spam, or abusive content, Attempt to reverse-engineer, scrape, or resell our service, Exceed reasonable usage patterns or abuse rate limits

## Plan

- Pay: $0
- You get: $5
- Enough for: about 3,333 results, once

## Rate limit

- Batch: 100

## Speed

- Answer: in the call

## The call

- You send: keywords. Optional: location_code, language, filters, match, sort
- Method: POST
- Path: /v1/seo/keywords

## About the plan

- Plan: Free credit
- Who can get it: anyone

## The 13 fields the plan's answer can hold

keyword, search volume, cost per click, keyword difficulty, competition, competition level, main intent, top results average backlinks, top results average referring domains, SERP item types, search results count, monthly searches, skipped keywords

## YepAPI's plans (2)

- [YepAPI, free credit, POST /v1/seo/keywords](https://datacircle.dev/keyword-research-apis/yepapi/free-credit-post-v1-seo-keywords/llms.txt): $0.00 per 1,000, 100% complete
- [YepAPI, top-up, Pay as you go, POST /v1/seo/keywords](https://datacircle.dev/keyword-research-apis/yepapi/top-up-pay-as-you-go-post-v1-seo-keywords/llms.txt): $1.50 per 1,000, 100% complete

## YepAPI's calls for this API (2)

- `POST /v1/seo/keywords/overview`: [YepAPI, free credit, POST /v1/seo/keywords/overview](https://datacircle.dev/keyword-research-apis/yepapi/free-credit-post-v1-seo-keywords-overview/llms.txt)
- `POST /v1/seo/keywords`: [YepAPI, free credit, POST /v1/seo/keywords](https://datacircle.dev/keyword-research-apis/yepapi/free-credit-post-v1-seo-keywords/llms.txt)

## YepAPI's APIs (36)

- [YepAPI: Amazon product API pricing, 2 plans](https://datacircle.dev/amazon-product-apis/yepapi/free/llms.txt)
- [YepAPI: Amazon search API pricing, 2 plans](https://datacircle.dev/amazon-search-apis/yepapi/free/llms.txt)
- [YepAPI: SERP API pricing, 2 plans, POST /v1/serp/bing](https://datacircle.dev/serp-apis/yepapi/free-credit-post-v1-serp-bing/llms.txt)
- [YepAPI: SERP API pricing, 2 plans, POST /v1/serp/yahoo](https://datacircle.dev/serp-apis/yepapi/free-credit-post-v1-serp-yahoo/llms.txt)
- [YepAPI: SERP API pricing, 2 plans, POST /v1/serp/google-ads](https://datacircle.dev/serp-apis/yepapi/free-credit-post-v1-serp-google-ads/llms.txt)
- [YepAPI: SERP API pricing, 2 plans, POST /v1/serp/google-datasets](https://datacircle.dev/serp-apis/yepapi/free-credit-post-v1-serp-google-datasets/llms.txt)
- [YepAPI: SERP API pricing, 2 plans, POST /v1/serp/google-finance](https://datacircle.dev/serp-apis/yepapi/free-credit-post-v1-serp-google-finance/llms.txt)
- [YepAPI: SERP API pricing, 2 plans, POST /v1/search/google](https://datacircle.dev/serp-apis/yepapi/free-credit-post-v1-search-google/llms.txt)
- [YepAPI: SERP API pricing, 2 plans, POST /v1/serp/google](https://datacircle.dev/serp-apis/yepapi/free-credit-post-v1-serp-google/llms.txt)
- [YepAPI: SERP API pricing, 2 plans, POST /v1/seo/serp](https://datacircle.dev/serp-apis/yepapi/free-credit-post-v1-seo-serp/llms.txt)
- [YepAPI: Google AI Mode scraper API pricing, 2 plans](https://datacircle.dev/google-ai-mode-scraper-apis/yepapi/free/llms.txt)
- [YepAPI: image search API pricing, 2 plans](https://datacircle.dev/image-search-apis/yepapi/free/llms.txt)
- [YepAPI: search autocomplete API pricing, 2 plans](https://datacircle.dev/search-autocomplete-apis/yepapi/free/llms.txt)
- [YepAPI: company discovery API pricing, 2 plans](https://datacircle.dev/company-discovery-apis/yepapi/free/llms.txt)
- [YepAPI: news API pricing, 2 plans](https://datacircle.dev/news-apis/yepapi/free/llms.txt)
- [YepAPI: Instagram post API pricing, 2 plans](https://datacircle.dev/instagram-post-apis/yepapi/free/llms.txt)
- [YepAPI: Reddit post API pricing, 2 plans](https://datacircle.dev/reddit-post-apis/yepapi/free/llms.txt)
- [YepAPI: Reddit profile API pricing, 2 plans](https://datacircle.dev/reddit-profile-apis/yepapi/free/llms.txt)
- [YepAPI: TikTok profile API pricing, 2 plans](https://datacircle.dev/tiktok-profile-apis/yepapi/free/llms.txt)
- [YepAPI: TikTok video API pricing, 2 plans](https://datacircle.dev/tiktok-video-apis/yepapi/free/llms.txt)
- [YepAPI: Walmart product API pricing, 2 plans](https://datacircle.dev/walmart-product-apis/yepapi/free/llms.txt)
- [YepAPI: Walmart search API pricing, 2 plans](https://datacircle.dev/walmart-search-apis/yepapi/free/llms.txt)
- [YepAPI: X post API pricing, 2 plans](https://datacircle.dev/x-post-apis/yepapi/free/llms.txt)
- [YepAPI: backlink API pricing, 2 plans](https://datacircle.dev/backlink-apis/yepapi/free/llms.txt)
- [YepAPI: company enrichment API pricing, 2 plans](https://datacircle.dev/company-enrichment-apis/yepapi/free/llms.txt)
- [YepAPI: similar companies API pricing, 2 plans](https://datacircle.dev/similar-company-apis/yepapi/free/llms.txt)
- [YepAPI: email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/yepapi/free/llms.txt)
- [YepAPI: phone finder API pricing, 2 plans](https://datacircle.dev/find-phone-apis/yepapi/free/llms.txt)
- [YepAPI: people search API pricing, 2 plans](https://datacircle.dev/people-search-apis/yepapi/free/llms.txt)
- [YepAPI: phone validation API pricing, 2 plans](https://datacircle.dev/validate-phone-apis/yepapi/free/llms.txt)
- [YepAPI: ranked keywords API pricing, 2 plans](https://datacircle.dev/ranked-keywords-apis/yepapi/free/llms.txt)
- [YepAPI: video search API pricing, 2 plans](https://datacircle.dev/video-search-apis/yepapi/free/llms.txt)
- [YepAPI: YouTube channel video API pricing, 2 plans](https://datacircle.dev/youtube-channel-video-apis/yepapi/free/llms.txt)
- [YepAPI: X profile API pricing, 2 plans, POST /v1/twitter/user-about](https://datacircle.dev/x-profile-apis/yepapi/free-credit-post-v1-twitter-user-about/llms.txt)
- [YepAPI: X profile API pricing, 2 plans, POST /v1/twitter/user](https://datacircle.dev/x-profile-apis/yepapi/free-credit-post-v1-twitter-user/llms.txt)
- [YepAPI: email finder API pricing, 2 plans, POST /v1/email/author-finder](https://datacircle.dev/find-email-apis/yepapi/free-credit-post-v1-email-author-finder/llms.txt)
- [YepAPI: email finder API pricing, 2 plans, POST /v1/email/finder](https://datacircle.dev/find-email-apis/yepapi/free-credit-post-v1-email-finder/llms.txt)
- [YepAPI: email finder API pricing, 2 plans, POST /v1/email/linkedin-finder](https://datacircle.dev/find-email-apis/yepapi/free-credit-post-v1-email-linkedin-finder/llms.txt)
- [YepAPI: YouTube channel API pricing, 2 plans, POST /v1/youtube/channel-about](https://datacircle.dev/youtube-channel-apis/yepapi/free-credit-post-v1-youtube-channel-about/llms.txt)
- [YepAPI: YouTube channel API pricing, 2 plans, POST /v1/youtube/channel](https://datacircle.dev/youtube-channel-apis/yepapi/free-credit-post-v1-youtube-channel/llms.txt)
- [YepAPI: reverse email lookup API pricing, 2 plans, POST /v1/email/combined](https://datacircle.dev/reverse-email-lookup-apis/yepapi/free-credit-post-v1-email-combined/llms.txt)
- [YepAPI: reverse email lookup API pricing, 2 plans, POST /v1/email/enrich](https://datacircle.dev/reverse-email-lookup-apis/yepapi/free-credit-post-v1-email-enrich/llms.txt)
- [YepAPI: reverse email lookup API pricing, 2 plans, POST /v1/email/person](https://datacircle.dev/reverse-email-lookup-apis/yepapi/free-credit-post-v1-email-person/llms.txt)
- [YepAPI: domain authority API pricing, 2 plans, POST /v1/seo/domain/metrics](https://datacircle.dev/domain-authority-apis/yepapi/free-credit-post-v1-seo-domain-metrics/llms.txt)
- [YepAPI: domain authority API pricing, 2 plans, POST /v1/seo/domain/overview](https://datacircle.dev/domain-authority-apis/yepapi/free-credit-post-v1-seo-domain-overview/llms.txt)
- [YepAPI: tech stack API pricing, 2 plans, POST /v1/seo/domain/technologies](https://datacircle.dev/company-technology-apis/yepapi/free-credit-post-v1-seo-domain-technologies/llms.txt)
- [YepAPI: tech stack API pricing, 2 plans, POST /v1/email/technology](https://datacircle.dev/company-technology-apis/yepapi/free-credit-post-v1-email-technology/llms.txt)
- [YepAPI: web scraping API pricing, 2 plans, POST /v1/scrape/js](https://datacircle.dev/web-scraping-apis/yepapi/free-credit-post-v1-scrape-js/llms.txt)
- [YepAPI: web scraping API pricing, 2 plans, POST /v1/scrape/stealth](https://datacircle.dev/web-scraping-apis/yepapi/free-credit-post-v1-scrape-stealth/llms.txt)
- [YepAPI: web scraping API pricing, 2 plans, POST /v1/scrape](https://datacircle.dev/web-scraping-apis/yepapi/free-credit-post-v1-scrape/llms.txt)
- [YepAPI: related keywords API pricing, 2 plans, POST /v1/seo/keywords/ideas](https://datacircle.dev/related-keywords-apis/yepapi/free-credit-post-v1-seo-keywords-ideas/llms.txt)
- [YepAPI: related keywords API pricing, 2 plans, POST /v1/seo/keywords/related](https://datacircle.dev/related-keywords-apis/yepapi/free-credit-post-v1-seo-keywords-related/llms.txt)
- [YepAPI: keyword research API pricing, 2 plans, POST /v1/seo/keywords](https://datacircle.dev/keyword-research-apis/yepapi/free-credit-post-v1-seo-keywords/llms.txt)
- [YepAPI: Instagram profile API pricing, 2 plans, POST /v1/instagram/user-about](https://datacircle.dev/instagram-profile-apis/yepapi/free-credit-post-v1-instagram-user-about/llms.txt)
- [YepAPI: Instagram profile API pricing, 2 plans, POST /v1/instagram/user](https://datacircle.dev/instagram-profile-apis/yepapi/free-credit-post-v1-instagram-user/llms.txt)

## YepAPI: keyword research API alternatives

- [UnifAPI, top-up, Starter top-up, POST /seo/keywords/overview](https://datacircle.dev/keyword-research-apis/unifapi/top-up-starter-top-up-post-seo-keywords-overview/llms.txt): $1.00 per 1,000, 100% complete
- [SandBase, top-up, Build, POST /v1/api/semrush/keyword-overview](https://datacircle.dev/keyword-research-apis/sandbase/top-up-build-post-v1-api-semrush-keyword-overview/llms.txt): $1.00 per 1,000, 50% complete
- [Aizhan, top-up, Standard price, GET /baidu/index/{key}](https://datacircle.dev/keyword-research-apis/aizhan/top-up-standard-price-get-baidu-index-key/llms.txt): $1.196 per 1,000, 0% complete
- [Rush Analytics, $49 monthly, Pro, POST /create/adwords](https://datacircle.dev/keyword-research-apis/rush-analytics/49-monthly-pro-post-create-adwords/llms.txt): $1.40 per 1,000, 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://docs.yepapi.com/getting-started/billing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://docs.yepapi.com/llms-full.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://docs.yepapi.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://docs.yepapi.com/seo-keywords/keywords?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://www.yepapi.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://www.yepapi.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing