# SocQ, top-up from $5, Starter, POST /v1/seo/related-keywords: Related keywords API

> Discover queries connected to one seed through related-search paths, returning keyword metrics, monthly demand, intent, and relationship depth in normalized records.

SocQ's related keywords API on its Starter plan. It costs $0.50 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 SocQ through [our related keywords API benchmark](https://datacircle.dev/best-related-keywords-api.txt) yet.
Half of the 143 plans we rank by price cost $0.486 per 1,000 keywords or less. This plan costs less per 1,000 keywords than 42% of the 143 plans.
[XMLRiver's ₽15,000 monthly plan](https://datacircle.dev/related-keywords-apis/xmlriver/15000-monthly/llms.txt) is the cheapest paid plan per 1,000 keywords: $0.00009. XMLRiver charges for each page of results. We count 2,000 keywords on each page to get the $0.00009 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 [AnyAPI](https://datacircle.dev/related-keywords-apis/anyapi/top-up-from-10-manual-top-up-post-v1-run-seo-related-keywords/llms.txt) are the best related keywords API providers in our benchmark.

- This page: https://datacircle.dev/related-keywords-apis/socq/top-up-from-5-starter-post-v1-seo-related-keywords
- [Related keywords API: 4 providers compared on price and data](https://datacircle.dev/best-related-keywords-api.txt)
- Get it: https://socq.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- Request: `POST https://api.socq.ai/v1/seo/related-keywords`
- API key: with the plan, on https://socq.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- Its API docs: https://docs.socq.ai/api-manual/seo/related-keywords?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- Sold by: SocQ (https://socq.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-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: $0.50
- Per: result
- Billing: pay first

## Charges

- Also pays for: from the same budget: 172 other calls

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Discover queries connected to one seed through related-search paths, returning keyword metrics, monthly demand, intent, and relationship depth in normalized records.

## Data

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

## Plan

- Pay: $5
- Expires: never

## Rate limit

- Batch: 1

## Speed

- Answer: by polling or webhook

## The call

- You send: query. Optional: depth, location_code, location_name, language_code, language, offset, results_limit, callback_url
- Method: POST
- Path: /v1/seo/related-keywords

## About the plan

- Plan: Starter
- Who can get it: anyone

## The 7 fields the plan's answer can hold

keyword, search volume, monthly searches, cost per click, competition, keyword difficulty, search intent

## SocQ's plans (2)

- [SocQ, top-up from $5, Starter, POST /v1/seo/related-keywords](https://datacircle.dev/related-keywords-apis/socq/top-up-from-5-starter-post-v1-seo-related-keywords/llms.txt): $0.50 per 1,000, 100% complete
- [SocQ, contact us, Enterprise, POST /v1/seo/related-keywords](https://datacircle.dev/related-keywords-apis/socq/contact-us-enterprise-post-v1-seo-related-keywords/llms.txt): 100% complete

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

- `POST /v1/seo/keyword-suggestions`: [SocQ, top-up from $5, Starter, POST /v1/seo/keyword-suggestions](https://datacircle.dev/related-keywords-apis/socq/top-up-from-5-starter-post-v1-seo-keyword-suggestions/llms.txt)
- `POST /v1/seo/related-keywords`: [SocQ, top-up from $5, Starter, POST /v1/seo/related-keywords](https://datacircle.dev/related-keywords-apis/socq/top-up-from-5-starter-post-v1-seo-related-keywords/llms.txt)

## SocQ's APIs (56)

- [SocQ: Amazon product API pricing, 2 plans](https://datacircle.dev/amazon-product-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Amazon search API pricing, 2 plans](https://datacircle.dev/amazon-search-apis/socq/top-up-from-5/llms.txt)
- [SocQ: App Store API pricing, 2 plans](https://datacircle.dev/app-store-apis/socq/top-up-from-5/llms.txt)
- [SocQ: App Store review API pricing, 2 plans](https://datacircle.dev/app-store-review-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Bluesky post API pricing, 2 plans](https://datacircle.dev/bluesky-post-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Bluesky profile API pricing, 2 plans](https://datacircle.dev/bluesky-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Douyin profile API pricing, 2 plans](https://datacircle.dev/douyin-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Douyin user video API pricing, 2 plans](https://datacircle.dev/douyin-user-video-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Douyin video API pricing, 2 plans](https://datacircle.dev/douyin-video-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Facebook Ad Library API pricing, 2 plans](https://datacircle.dev/facebook-ad-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Facebook Marketplace listing API pricing, 2 plans](https://datacircle.dev/facebook-marketplace-listing-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Facebook Marketplace search API pricing, 2 plans](https://datacircle.dev/facebook-marketplace-search-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Facebook post API pricing, 2 plans](https://datacircle.dev/facebook-post-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Google Ads Transparency API pricing, 2 plans](https://datacircle.dev/google-ad-apis/socq/top-up-from-5/llms.txt)
- [SocQ: ranked keywords API pricing, 2 plans](https://datacircle.dev/ranked-keywords-apis/socq/top-up-from-5/llms.txt)
- [SocQ: SERP API pricing, 2 plans](https://datacircle.dev/serp-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Google Play API pricing, 2 plans](https://datacircle.dev/google-play-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Google Play review API pricing, 2 plans](https://datacircle.dev/google-play-review-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Instagram post API pricing, 2 plans](https://datacircle.dev/instagram-post-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Instagram profile API pricing, 2 plans](https://datacircle.dev/instagram-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: company open jobs API pricing, 2 plans](https://datacircle.dev/company-open-job-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn company post API pricing, 2 plans](https://datacircle.dev/linkedin-company-post-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn company data API pricing, 2 plans](https://datacircle.dev/linkedin-company-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn profile post API pricing, 2 plans](https://datacircle.dev/linkedin-person-post-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn profile API pricing, 2 plans](https://datacircle.dev/linkedin-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn people search API pricing, 2 plans](https://datacircle.dev/linkedin-people-search-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn job details API pricing, 2 plans](https://datacircle.dev/linkedin-job-details-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn job search API pricing, 2 plans](https://datacircle.dev/linkedin-job-search-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn Ad Library API pricing, 2 plans](https://datacircle.dev/linkedin-ad-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn post comment API pricing, 2 plans](https://datacircle.dev/linkedin-post-comment-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn post details API pricing, 2 plans](https://datacircle.dev/linkedin-post-details-apis/socq/top-up-from-5/llms.txt)
- [SocQ: LinkedIn post search API pricing, 2 plans](https://datacircle.dev/linkedin-post-search-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Pinterest pin API pricing, 2 plans](https://datacircle.dev/pinterest-pin-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Pinterest search API pricing, 2 plans](https://datacircle.dev/pinterest-search-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Snapchat profile API pricing, 2 plans](https://datacircle.dev/snapchat-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Threads post API pricing, 2 plans](https://datacircle.dev/threads-post-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Threads profile API pricing, 2 plans](https://datacircle.dev/threads-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: TikTok Ad Library API pricing, 2 plans](https://datacircle.dev/tiktok-ad-apis/socq/top-up-from-5/llms.txt)
- [SocQ: TikTok profile API pricing, 2 plans](https://datacircle.dev/tiktok-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: TikTok video API pricing, 2 plans](https://datacircle.dev/tiktok-video-apis/socq/top-up-from-5/llms.txt)
- [SocQ: TikTok Shop product API pricing, 2 plans](https://datacircle.dev/tiktok-shop-product-apis/socq/top-up-from-5/llms.txt)
- [SocQ: TikTok Shop search API pricing, 2 plans](https://datacircle.dev/tiktok-shop-search-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Truth Social post API pricing, 2 plans](https://datacircle.dev/truth-social-post-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Truth Social profile API pricing, 2 plans](https://datacircle.dev/truth-social-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Twitch profile API pricing, 2 plans](https://datacircle.dev/twitch-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Twitch video API pricing, 2 plans](https://datacircle.dev/twitch-video-apis/socq/top-up-from-5/llms.txt)
- [SocQ: X post API pricing, 2 plans](https://datacircle.dev/x-post-apis/socq/top-up-from-5/llms.txt)
- [SocQ: X profile API pricing, 2 plans](https://datacircle.dev/x-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Xiaohongshu note API pricing, 2 plans](https://datacircle.dev/xiaohongshu-note-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Xiaohongshu profile API pricing, 2 plans](https://datacircle.dev/xiaohongshu-profile-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Xiaohongshu user note API pricing, 2 plans](https://datacircle.dev/xiaohongshu-user-note-apis/socq/top-up-from-5/llms.txt)
- [SocQ: YouTube channel API pricing, 2 plans](https://datacircle.dev/youtube-channel-apis/socq/top-up-from-5/llms.txt)
- [SocQ: YouTube channel video API pricing, 2 plans](https://datacircle.dev/youtube-channel-video-apis/socq/top-up-from-5/llms.txt)
- [SocQ: Facebook page API pricing, 2 plans, POST /v1/facebook/pages](https://datacircle.dev/facebook-page-apis/socq/top-up-from-5-starter-post-v1-facebook-pages/llms.txt)
- [SocQ: Facebook page API pricing, 2 plans, POST /v1/facebook/profiles](https://datacircle.dev/facebook-page-apis/socq/top-up-from-5-starter-post-v1-facebook-profiles/llms.txt)
- [SocQ: keyword research API pricing, 2 plans, POST /v1/seo/keyword-overview](https://datacircle.dev/keyword-research-apis/socq/top-up-from-5-starter-post-v1-seo-keyword-overview/llms.txt)
- [SocQ: keyword research API pricing, 2 plans, POST /v1/seo/keyword-search-volume](https://datacircle.dev/keyword-research-apis/socq/top-up-from-5-starter-post-v1-seo-keyword-search-volume/llms.txt)
- [SocQ: related keywords API pricing, 2 plans, POST /v1/seo/related-keywords](https://datacircle.dev/related-keywords-apis/socq/top-up-from-5-starter-post-v1-seo-related-keywords/llms.txt)

## SocQ: related keywords API alternatives

- [Keyword Insights, $99 monthly](https://datacircle.dev/related-keywords-apis/keyword-insights/99-monthly/llms.txt): $0.495 per 1,000, 67% complete
- [Ranxplorer, €132 pack, Sans abonnement 300 k, GET /v1/kwd/relatedsearches](https://datacircle.dev/related-keywords-apis/ranxplorer/132-pack-sans-abonnement-300-k-get-v1-kwd-relatedsearches/llms.txt): $0.495 per 1,000, 83% complete
- [Keywords Everywhere, $500 pack, 2,000,000 credits, POST /v1/get_pasf_keywords](https://datacircle.dev/related-keywords-apis/keywords-everywhere/500-pack-2000000-credits-post-v1-get-pasf-keywords/llms.txt): $0.50 per 1,000, 0% complete
- [Ahrefs, $1,290 yearly, Lite, GET /v3/keywords-explorer/matching-terms, Matching terms](https://datacircle.dev/related-keywords-apis/ahrefs/1290-yearly-lite-get-v3-keywords-explorer-matching-terms-matching-terms/llms.txt): $0.537 per 1,000, 50% 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 2026-11-04.

- https://docs.socq.ai/api-manual/agent-api/agent-api.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://docs.socq.ai/api-manual/linkedin/profiles?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://docs.socq.ai/api-manual/seo/related-keywords?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://docs.socq.ai/capability-catalog.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://socq.ai/alternatives/linkedin-api-alternatives?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://socq.ai/apis/linkedin/profiles?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://socq.ai/apis/seo/related-keywords?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://socq.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://socq.ai/privacy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://socq.ai/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing