# Citable, pay as you go: Keyword research API

> Search volume, CPC, competition, difficulty and intent per keyword — one price for a batch of up to 20.

Citable's Pay per call plan for the keyword research API costs $1.50 per 1,000 keywords. Citable's docs list 5 of the 6 fields on our checklist: Search volume, Cost per click, Competition, Keyword difficulty, Search intent.
We haven't run Citable through [our keyword research API benchmark](https://datacircle.dev/best-keyword-research-api.txt) yet.
Half of the 290 plans we rank by price cost $1.543 per 1,000 keywords or less. This plan costs less per 1,000 keywords than 50% of the 290 plans.
[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/citable/pay-as-you-go
- [Keyword research API: the 13 best providers compared](https://datacircle.dev/best-keyword-research-api.txt)
- Get it: https://citable.run/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Request: `GET https://citable.run/v1/keyword-metrics`
- API key: not needed
- Its API docs: https://citable.run/docs/api/keyword-metrics?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- Sold by: Citable (https://citable.run?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 83%
- Search volume: ✓
- Cost per click: ✓
- Competition: ✓
- Keyword difficulty: ✓
- Search intent: ✓

## Price

- $ per 1,000 keywords: $1.50
- Per: result
- Billing: pay as you go

## Charges

- Also pays for: nothing else

## In their words

- Their pitch: Search volume, CPC, competition, difficulty and intent per keyword — one price for a batch of up to 20.

## Data

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

## Plan

- Pay: per call

## Rate limit

- Batch: 20

## Speed

- Answer: in the call

## The call

- You send: keywords. Optional: country, lang
- Method: GET
- Path: /v1/keyword-metrics

## About the plan

- Plan: Pay per call
- Who can get it: anyone, with no account or API key, paying each call in USDC from a Solana wallet over x402

## The 10 fields the plan's answer can hold

keyword, search volume, cost per click, competition, keyword difficulty, search intent, keywords requested, keywords matched, country code, language code

## Citable's plans (1)

- [Citable, pay as you go](https://datacircle.dev/keyword-research-apis/citable/pay-as-you-go/llms.txt): $1.50 per 1,000, 83% complete

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

- `GET /v1/keyword-metrics`: [Citable, pay as you go](https://datacircle.dev/keyword-research-apis/citable/pay-as-you-go/llms.txt)

## Citable's APIs (6)

- [Citable: domain authority API pricing, 1 plan](https://datacircle.dev/domain-authority-apis/citable/pay-as-you-go/llms.txt)
- [Citable: keyword research API pricing, 1 plan](https://datacircle.dev/keyword-research-apis/citable/pay-as-you-go/llms.txt)
- [Citable: ranked keywords API pricing, 1 plan](https://datacircle.dev/ranked-keywords-apis/citable/pay-as-you-go/llms.txt)
- [Citable: search autocomplete API pricing, 1 plan](https://datacircle.dev/search-autocomplete-apis/citable/pay-as-you-go/llms.txt)
- [Citable: related keywords API pricing, 1 plan, GET /v1/keyword-ideas](https://datacircle.dev/related-keywords-apis/citable/pay-as-you-go-pay-per-call-get-v1-keyword-ideas/llms.txt)
- [Citable: related keywords API pricing, 1 plan, GET /v1/keyword-research](https://datacircle.dev/related-keywords-apis/citable/pay-as-you-go-pay-per-call-get-v1-keyword-research/llms.txt)
- [Citable: SERP API pricing, 1 plan, GET /v1/rank-check](https://datacircle.dev/serp-apis/citable/pay-as-you-go-pay-per-call-get-v1-rank-check/llms.txt)
- [Citable: SERP API pricing, 1 plan, GET /v1/serp](https://datacircle.dev/serp-apis/citable/pay-as-you-go-pay-per-call-get-v1-serp/llms.txt)

## Citable: keyword research API alternatives

- [Alura, $29.99 monthly, Growth, GET /research/keywords](https://datacircle.dev/keyword-research-apis/alura/29-99-monthly-growth-get-research-keywords/llms.txt): $1.50 per 1,000, 33% complete, stored
- [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
- [Unstuckapi, $10 pack](https://datacircle.dev/keyword-research-apis/unstuckapi/10-pack/llms.txt): $1.50 per 1,000, 50% complete
- [SearcherLite, $37 pack, Personal, bulk_keyword_overview](https://datacircle.dev/keyword-research-apis/searcherlite/37-pack-personal-bulk-keyword-overview/llms.txt): $1.586 per 1,000, 83% 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://citable.run?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://citable.run/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://citable.run/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://citable.run/docs/api/keyword-metrics?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://citable.run/docs/paying?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://citable.run/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing
- https://citable.run/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=keyword-research-api-pricing