# Ahrefs, $129 monthly, Lite, GET /v3/keywords-explorer/related-terms, Related terms, full: Related keywords API

> Volume, difficulty, clickstream data, parent topics, keyword ideas for a single term or list.

Ahrefs's related keywords API on its Lite plan. It costs $44.505 per 1,000 keywords. It returns 3 of the 6 key fields we check: Search volume, Cost per click, Keyword difficulty.
Half of the 66 plans we rank by price cost $0.623 per 1,000 keywords or less. This plan is the most expensive of the 66 plans.
[Mangools's $15 monthly plan](https://datacircle.dev/related-keywords-apis/mangools/15-monthly/llms.txt) is the cheapest paid plan per 1,000 keywords: $0.0001. Mangools charges for each page of results. We count 10,000 keywords on each page to get the $0.0001 price.
[Mangools](https://datacircle.dev/related-keywords-apis/mangools/15-monthly/llms.txt), [DataForSEO](https://datacircle.dev/related-keywords-apis/dataforseo/top-up-from-50-pay-as-you-go-post-v3-dataforseo-labs-google-keyword-ideas-live/llms.txt) and [SE Ranking](https://datacircle.dev/related-keywords-apis/se-ranking/29-monthly-add-on-monthly-billing-get-v1-keywords-similar/llms.txt) are the best related keywords API providers in our benchmark.

- This page: https://datacircle.dev/related-keywords-apis/ahrefs/129-monthly-lite-get-v3-keywords-explorer-related-terms-related-terms-full
- [Best related keywords API in 2026: pricing compared](https://datacircle.dev/best-related-keywords-api.txt)
- Get it: https://ahrefs.com/pricing
- Request: `GET https://api.ahrefs.com/v3/keywords-explorer/related-terms`, Related terms, full
- API key: with the plan, on https://ahrefs.com/pricing
- Its API docs: https://docs.ahrefs.com/en/api/reference/keywords-explorer/get-related-terms
- Sold by: Ahrefs (https://ahrefs.com)
- Checked: 2026-10-30

## In the answer

- Completeness: 50%
- Search volume: ✓
- Cost per click: ✓
- Keyword difficulty: ✓

## Price

- $ per 1,000 keywords: $44.505
- Per: result
- Billing: monthly
- $ a month: $129

## Charges

- Start fee: $0.00
- Also pays for: from the same budget: Domain rating · Backlinks stats · Batch analysis · Backlinks · Organic keywords · Overview · Matching terms · SERP Overview

## Overage

- $ per 1,000 keywords: $3.45

## Not found

- $ per 1,000: $32.25

## In their words

- Their pitch: Volume, difficulty, clickstream data, parent topics, keyword ideas for a single term or list.

## Data

- Keep data: Upon termination of your use of Ahrefs Services, any license rights granted to you under the Terms will terminate with immediate effect.
- Use data: Ahrefs grants you a limited, non-exclusive, non-transferable, non-sublicensable and revocable licence to access and use Ahrefs Services solely for the purposes of your internal business operations. [...] you shall not engage in any use of Ahrefs Services, Content or User Content in violation of intellectual property rights, including but not limited to: a) reproducing, duplicating, copying, selling, trading, transferring, assigning, publishing, or exploiting for any commercial purposes, any portion of Ahrefs Services, or use or access to Ahrefs Services or the computer code that powers Ahrefs Services, without our express written consent, [...] You agree that you will not [...] i) except through the software or search agents provided by Ahrefs Services, search, crawl, scrape or harvest data or information from Ahrefs Services through the use of any engine, software, tool, agent, device or mechanism, [...] l) use Ahrefs Services to develop a product or service which competes with us or any of our products and services

## Plan

- Pay: $129
- You get: 200,000 credits a month
- Enough for: about 2,898 results a month

## Rate limit

- Per second: 1

## The call

- You send: country, select "keyword,cpc,cps,difficulty,first_seen,global_volume,intents,parent_topic,serp_features,serp_last_update,traffic_potential,volume,volume_desktop_pct,volume_mobile_pct,volume_monthly". Optional: where, order_by, limit, timeout, keyword_list_id, keywords, terms, view_for
- Method: GET
- Path: /v3/keywords-explorer/related-terms

## About the plan

- Plan: Lite
- Who can get it: anyone with an Ahrefs account, only workspace owners and admins create API keys

## The 15 fields the plan's answer can hold

keyword, cost per click, clicks per search, keyword difficulty, first seen, global search volume, search intents, parent topic, SERP features, SERP updated at, traffic potential, search volume, desktop volume percentage, mobile volume percentage, monthly search volume

## Ahrefs's plans (7)

- [Ahrefs, $129 monthly, Lite, GET /v3/keywords-explorer/related-terms, Related terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/129-monthly-lite-get-v3-keywords-explorer-related-terms-related-terms-full/llms.txt): $44.505 per 1,000, 50% complete
- [Ahrefs, $249 monthly, Standard, GET /v3/keywords-explorer/related-terms, Related terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/249-monthly-standard-get-v3-keywords-explorer-related-terms-related-terms-full/llms.txt): $21.476 per 1,000, 50% complete
- [Ahrefs, $449 monthly, Advanced, GET /v3/keywords-explorer/related-terms, Related terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/449-monthly-advanced-get-v3-keywords-explorer-related-terms-related-terms-full/llms.txt): $15.491 per 1,000, 50% complete
- [Ahrefs, $1,290 yearly, Lite, GET /v3/keywords-explorer/related-terms, Related terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/1290-yearly-lite-get-v3-keywords-explorer-related-terms-related-terms-full/llms.txt): $37.087 per 1,000, 50% complete
- [Ahrefs, $2,490 yearly, Standard, GET /v3/keywords-explorer/related-terms, Related terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/2490-yearly-standard-get-v3-keywords-explorer-related-terms-related-terms-full/llms.txt): $17.897 per 1,000, 50% complete
- [Ahrefs, $4,490 yearly, Advanced, GET /v3/keywords-explorer/related-terms, Related terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/4490-yearly-advanced-get-v3-keywords-explorer-related-terms-related-terms-full/llms.txt): $12.909 per 1,000, 50% complete
- [Ahrefs, contact us, Enterprise, GET /v3/keywords-explorer/related-terms, Related terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/contact-us-enterprise-get-v3-keywords-explorer-related-terms-related-terms-full/llms.txt): 50% complete

## Ahrefs's calls for this API (4)

- `GET /v3/keywords-explorer/matching-terms`, Matching terms: [Ahrefs, $129 monthly, Lite, GET /v3/keywords-explorer/matching-terms, Matching terms](https://datacircle.dev/related-keywords-apis/ahrefs/129-monthly-lite-get-v3-keywords-explorer-matching-terms-matching-terms/llms.txt)
- `GET /v3/keywords-explorer/matching-terms`, Matching terms, full: [Ahrefs, $129 monthly, Lite, GET /v3/keywords-explorer/matching-terms, Matching terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/129-monthly-lite-get-v3-keywords-explorer-matching-terms-matching-terms-full/llms.txt)
- `GET /v3/keywords-explorer/related-terms`, Related terms: [Ahrefs, $129 monthly, Lite, GET /v3/keywords-explorer/related-terms, Related terms](https://datacircle.dev/related-keywords-apis/ahrefs/129-monthly-lite-get-v3-keywords-explorer-related-terms-related-terms/llms.txt)
- `GET /v3/keywords-explorer/related-terms`, Related terms, full: [Ahrefs, $129 monthly, Lite, GET /v3/keywords-explorer/related-terms, Related terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/129-monthly-lite-get-v3-keywords-explorer-related-terms-related-terms-full/llms.txt)

## Ahrefs's APIs (6)

- [Ahrefs: backlink API pricing, 7 plans, GET /v3/site-explorer/all-backlinks, Backlinks](https://datacircle.dev/backlink-apis/ahrefs/129-monthly-lite-get-v3-site-explorer-all-backlinks-backlinks/llms.txt)
- [Ahrefs: backlink API pricing, 7 plans, GET /v3/site-explorer/all-backlinks, Backlinks, full](https://datacircle.dev/backlink-apis/ahrefs/129-monthly-lite-get-v3-site-explorer-all-backlinks-backlinks-full/llms.txt)
- [Ahrefs: domain authority API pricing, 7 plans, GET /v3/site-explorer/backlinks-stats](https://datacircle.dev/domain-authority-apis/ahrefs/129-monthly-lite-get-v3-site-explorer-backlinks-stats/llms.txt)
- [Ahrefs: domain authority API pricing, 7 plans, GET /v3/site-explorer/domain-rating](https://datacircle.dev/domain-authority-apis/ahrefs/129-monthly-lite-get-v3-site-explorer-domain-rating/llms.txt)
- [Ahrefs: related keywords API pricing, 7 plans, related-terms, Related terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/129-monthly-lite-get-v3-keywords-explorer-related-terms-related-terms-full/llms.txt)
- [Ahrefs: ranked keywords API pricing, 7 plans, Organic keywords](https://datacircle.dev/ranked-keywords-apis/ahrefs/129-monthly-lite-get-v3-site-explorer-organic-keywords-organic-keywords/llms.txt)
- [Ahrefs: ranked keywords API pricing, 7 plans, Organic keywords, full](https://datacircle.dev/ranked-keywords-apis/ahrefs/129-monthly-lite-get-v3-site-explorer-organic-keywords-organic-keywords-full/llms.txt)
- [Ahrefs: keyword research API pricing, 7 plans, GET /v3/keywords-explorer/overview, Overview](https://datacircle.dev/keyword-research-apis/ahrefs/129-monthly-lite-get-v3-keywords-explorer-overview-overview/llms.txt)
- [Ahrefs: keyword research API pricing, 7 plans, GET /v3/keywords-explorer/overview, Overview, full](https://datacircle.dev/keyword-research-apis/ahrefs/129-monthly-lite-get-v3-keywords-explorer-overview-overview-full/llms.txt)
- [Ahrefs: SERP API pricing, 7 plans, GET /v3/serp-overview/serp-overview, SERP Overview](https://datacircle.dev/serp-apis/ahrefs/129-monthly-lite-get-v3-serp-overview-serp-overview-serp-overview/llms.txt)
- [Ahrefs: SERP API pricing, 7 plans, GET /v3/serp-overview/serp-overview, SERP Overview, full](https://datacircle.dev/serp-apis/ahrefs/129-monthly-lite-get-v3-serp-overview-serp-overview-serp-overview-full/llms.txt)

## Ahrefs: related keywords API alternatives

- [Keywords Everywhere, $84 yearly, Bronze, POST /v1/get_related_keywords](https://datacircle.dev/related-keywords-apis/keywords-everywhere/84-yearly-bronze-post-v1-get-related-keywords/llms.txt): $1.68 per 1,000, 0% complete
- [SE Ranking, top-up from $50, Wallet, GET /v1/keywords/similar](https://datacircle.dev/related-keywords-apis/se-ranking/top-up-from-50-wallet-get-v1-keywords-similar/llms.txt): $2.00 per 1,000, 100% complete, 1 month
- [SpyFu, $2,244 yearly, Team / Agency, GET /apis/keyword_api/v2/related/getRelatedKeywords](https://datacircle.dev/related-keywords-apis/spyfu/2244-yearly-team-agency-get-apis-keyword-api-v2-related-getrelatedkeywords/llms.txt): $2.50 per 1,000, 67% complete, 1 month
- [Moz, $20 monthly](https://datacircle.dev/related-keywords-apis/moz/20-monthly/llms.txt): $6.667 per 1,000, 0% 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 2026-10-30.

- https://ahrefs.com/legal/terms
- https://ahrefs.com/pricing
- https://ahrefs.com/seo-api
- https://docs.ahrefs.com/
- https://docs.ahrefs.com/en/api/docs/introduction
- https://docs.ahrefs.com/en/api/docs/limits-consumption
- https://docs.ahrefs.com/en/api/reference/keywords-explorer/get-related-terms