# RankParse, free: Keyword research API

> Returns metrics for an explicit list of keywords, with no expansion into related terms.

RankParse's keyword research API on its Free plan. It costs $0.00 per 1,000 keywords. It returns 3 of the 6 key fields we check: Search volume, Cost per click, Competition.
You get 100 credits, which pay for RankParse's other calls. This call costs none of them for up to 3,000 calls a month.
We rank 33 plans by price. [Mangools's $15 monthly plan](https://datacircle.dev/keyword-research-apis/mangools/15-monthly/llms.txt) costs the least per 1,000 keywords: as little as $0.0001. Mangools's $15 monthly plan covers up to 5,000,000 keywords a day.

- This page: https://datacircle.dev/keyword-research-apis/rankparse/free
- Get it: https://rankparse.com/pricing
- Request: `POST https://api.rankparse.com/v1/google-ads/keyword-metrics`
- API key: with the plan, on https://rankparse.com/pricing
- Its API docs: https://rankparse.com/docs/endpoints/google-ads#post-v1google-adskeyword-metrics
- Sold by: RankParse (https://rankparse.com)
- Checked: 2026-10-29

## In the answer

- Completeness: 50%
- Search volume: ✓
- Cost per click: ✓
- Competition: ✓

## Price

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

## Charges

- Also pays for: from the same budget: POST /v1/google-ads/keyword-ideas · GET /v1/google-ads/accounts

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Returns metrics for an explicit list of keywords, with no expansion into related terms.

## Data

- Keep data: no limit
- Use data: You may use RankParse data to build products, conduct research, enrich datasets, and power automated workflows. You may not: resell raw API responses as a standalone data product, use the API to build a service that directly competes with RankParse's API offering, attempt to circumvent rate limits, or use the service for any unlawful purpose.

## Plan

- Pay: $0
- You get: 100 credits
- Enough for: 3,000 calls a month

## Rate limit

- Per day: 100
- Per second: 1
- Batch: 200

## The call

- You send: keywords, Content-Type header "application/json". Optional: language, geo_target_constants, keyword_plan_network, include_adult_keywords
- Method: POST
- Path: /v1/google-ads/keyword-metrics

## About the plan

- Plan: Free
- Who can get it: anyone with a valid email address and a Google Ads account connected to RankParse

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

keyword, close variants, search volume, competition, competition index, low top of page bid, high top of page bid, results returned, keywords requested, truncated, maximum keywords, customer ID

## RankParse's plans (5)

- [RankParse, free](https://datacircle.dev/keyword-research-apis/rankparse/free/llms.txt): $0.00 per 1,000, 50% complete
- [RankParse, $15 monthly](https://datacircle.dev/keyword-research-apis/rankparse/15-monthly/llms.txt): $5.00 per 1,000, 50% complete
- [RankParse, $59 monthly](https://datacircle.dev/keyword-research-apis/rankparse/59-monthly/llms.txt): $19.667 per 1,000, 50% complete
- [RankParse, $108 yearly](https://datacircle.dev/keyword-research-apis/rankparse/108-yearly/llms.txt): $3.00 per 1,000, 50% complete
- [RankParse, $468 yearly](https://datacircle.dev/keyword-research-apis/rankparse/468-yearly/llms.txt): $13.00 per 1,000, 50% complete

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

- `POST /v1/google-ads/keyword-metrics`: [RankParse, free](https://datacircle.dev/keyword-research-apis/rankparse/free/llms.txt)

## RankParse's APIs (5)

- [RankParse: keyword research API pricing, 5 plans](https://datacircle.dev/keyword-research-apis/rankparse/free/llms.txt)
- [RankParse: related keywords API pricing, 5 plans](https://datacircle.dev/related-keywords-apis/rankparse/free/llms.txt)
- [RankParse: tech stack API pricing, 11 plans](https://datacircle.dev/company-technology-apis/rankparse/free/llms.txt)
- [RankParse: backlink API pricing, 11 plans, GET /v1/backlinks](https://datacircle.dev/backlink-apis/rankparse/free-get-v1-backlinks/llms.txt)
- [RankParse: backlink API pricing, 11 plans, POST /v1/batch](https://datacircle.dev/backlink-apis/rankparse/free-post-v1-batch/llms.txt)
- [RankParse: domain authority API pricing, 11 plans, GET /v1/domain-authority](https://datacircle.dev/domain-authority-apis/rankparse/free/llms.txt)
- [RankParse: domain authority API pricing, 11 plans, GET /v1/domain-rank](https://datacircle.dev/domain-authority-apis/rankparse/free-get-v1-domain-rank/llms.txt)

## RankParse: keyword research API alternatives

- [SpyFu, $2,244 yearly, Team / Agency, POST /apis/keyword_api/v2/related/getKeywordInformation](https://datacircle.dev/keyword-research-apis/spyfu/2244-yearly-team-agency-post-apis-keyword-api-v2-related-getkeywordinformation/llms.txt): $0.20 per 1,000, 33% complete, 1 month
- [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): $0.45 per 1,000, 67% complete, live
- [Keywords Everywhere, $84 yearly](https://datacircle.dev/keyword-research-apis/keywords-everywhere/84-yearly/llms.txt): $0.84 per 1,000, 67% complete
- [AnyAPI, pay as you go, Pay per call with x402 and MPP, POST /v1/run/semrush.keywords](https://datacircle.dev/keyword-research-apis/anyapi/pay-as-you-go-pay-per-call-with-x402-and-mpp-post-v1-run-semrush-keywords/llms.txt): $4.95 per 1,000, 67% 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 2026-10-29.

- https://rankparse.com
- https://rankparse.com/docs/credits
- https://rankparse.com/docs/endpoints/google-ads
- https://rankparse.com/docs/rate-limiting
- https://rankparse.com/pricing
- https://rankparse.com/terms