# Local SEO Data, free, POST /v1/keywords/suggestions: Related keywords API

> Keyword ideas based on a seed keyword with volume and difficulty

Local SEO Data's Free plan for the related keywords API costs $0.00 per 1,000 keywords. We check each provider's docs for 6 fields. Local SEO Data's docs list 3: Search volume, Cost per click, Keyword difficulty.
We haven't run Local SEO Data through [our related keywords API benchmark](https://datacircle.dev/best-related-keywords-api.txt) yet.
This plan is free. We rank 253 plans for related keywords APIs by price. Half the plans cost $0.735 or less per 1,000 keywords. [74 related keywords API plans on our price sheet are free.](https://datacircle.dev/best-related-keywords-api.txt) [Bing Webmaster Tools' free plan](https://datacircle.dev/related-keywords-apis/bing-webmaster-tools/free/llms.txt) scores highest of the free plans in our benchmark, at 58.7 out of 100.
[Keys.so's ₽34,900 (about $417) monthly plan](https://datacircle.dev/related-keywords-apis/keys-so/34900-monthly/llms.txt) is the cheapest paid plan per 1,000 keywords, with no charge per call. You get as many keywords as Keys.so's rate limit allows. [AnyAPI's pay-as-you-go plan](https://datacircle.dev/related-keywords-apis/anyapi/pay-as-you-go-pay-per-call-with-x402-and-mpp-post-v1-run-seo-related-keywords/llms.txt) costs the least for 10,000 keywords a month: $1.60.
[seodata.dev's $4.99 monthly plan](https://datacircle.dev/related-keywords-apis/seodata-dev/4-99-monthly/llms.txt) covers any number of keywords, and costs less up front than Keys.so's ₽34,900 (about $417) monthly plan.
[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), [Mangools](https://datacircle.dev/related-keywords-apis/mangools/15-monthly/llms.txt) and [Bing Webmaster Tools](https://datacircle.dev/related-keywords-apis/bing-webmaster-tools/free/llms.txt) are the best related keywords API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/related-keywords-apis/local-seo-data/free-post-v1-keywords-suggestions
- [Related keywords API: the best SEO keyword data providers](https://datacircle.dev/best-related-keywords-api.txt)
- Get it: https://localseodata.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- Request: `POST https://api.localseodata.com/v1/keywords/suggestions`
- API key: with the plan, on https://localseodata.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- Its API docs: https://localseodata.com/llms-full.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- Sold by: Local SEO Data (https://localseodata.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing)
- Checked: 2026-11-11

## In the answer

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

## Price

- $ per 1,000 keywords: $0.00
- Per: page of 20
- Billing: free

## Charges

- Start fee: $0.00
- Also pays for: from the same budget: 53 other Local SEO Data calls

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Keyword ideas based on a seed keyword with volume and difficulty

## Data

- Keep data: no limit
- Use data: You may use the Service and its data to power your own products, reports, and client deliverables. You may not: (a) resell raw API access without adding value, (b) use the Service for any unlawful purpose, (c) attempt to reverse-engineer, decompile, or disassemble the Service, (d) exceed reasonable rate limits or attempt to circumvent access controls, (e) use the Service to scrape, harvest, or collect personal data in violation of applicable privacy laws.

## Plan

- Pay: $0
- You get: $0.50
- Enough for: about 1 page

## Rate limit

- Per second: 5
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: keyword, location. Optional: limit, include_seed_keyword
- Method: POST
- Path: /v1/keywords/suggestions

## About the plan

- Plan: Free
- Who can get it: anyone

## The 6 fields the plan's answer can hold

keyword, search volume, keyword difficulty, cost per click, seed keyword, total keywords

## Local SEO Data's plans (5)

- [Local SEO Data, free, POST /v1/keywords/suggestions](https://datacircle.dev/related-keywords-apis/local-seo-data/free-post-v1-keywords-suggestions/llms.txt): $0.00 per 1,000, 50% complete
- [Local SEO Data, top-up from $5, Pay-As-You-Go, POST /v1/keywords/suggestions](https://datacircle.dev/related-keywords-apis/local-seo-data/top-up-from-5-pay-as-you-go-post-v1-keywords-suggestions/llms.txt): $23.00 per 1,000, 50% complete
- [Local SEO Data, $19 monthly, Starter, POST /v1/keywords/suggestions](https://datacircle.dev/related-keywords-apis/local-seo-data/19-monthly-starter-post-v1-keywords-suggestions/llms.txt): $17.48 per 1,000, 50% complete
- [Local SEO Data, $49 monthly, Agency, POST /v1/keywords/suggestions](https://datacircle.dev/related-keywords-apis/local-seo-data/49-monthly-agency-post-v1-keywords-suggestions/llms.txt): $17.338 per 1,000, 50% complete
- [Local SEO Data, $149 monthly, Scale, POST /v1/keywords/suggestions](https://datacircle.dev/related-keywords-apis/local-seo-data/149-monthly-scale-post-v1-keywords-suggestions/llms.txt): $17.135 per 1,000, 50% complete

## Local SEO Data's calls for this API (2)

- `POST /v1/keywords/suggestions`: [Local SEO Data, free, POST /v1/keywords/suggestions](https://datacircle.dev/related-keywords-apis/local-seo-data/free-post-v1-keywords-suggestions/llms.txt)
- `POST /v1/keywords/related`: [Local SEO Data, free, POST /v1/keywords/related](https://datacircle.dev/related-keywords-apis/local-seo-data/free-post-v1-keywords-related/llms.txt)

## Local SEO Data's APIs (12)

- [Local SEO Data ChatGPT scraper API pricing, 5 plans](https://datacircle.dev/chatgpt-scraper-apis/local-seo-data/free/llms.txt)
- [Local SEO Data Gemini scraper API pricing, 5 plans](https://datacircle.dev/gemini-scraper-apis/local-seo-data/free/llms.txt)
- [Local SEO Data Google Ads Transparency API pricing, 5 plans](https://datacircle.dev/google-ad-apis/local-seo-data/free/llms.txt)
- [Local SEO Data Google AI Mode scraper API pricing, 5 plans](https://datacircle.dev/google-ai-mode-scraper-apis/local-seo-data/free/llms.txt)
- [Local SEO Data Google AI Overview scraper API pricing, 5 plans](https://datacircle.dev/google-ai-overview-scraper-apis/local-seo-data/free/llms.txt)
- [Local SEO Data Keyword research API pricing, 5 plans, POST /v1/keywords/search-volume](https://datacircle.dev/keyword-research-apis/local-seo-data/free-post-v1-keywords-search-volume/llms.txt)
- [Local SEO Data Keyword research API pricing, 5 plans, POST /v1/keywords/overview](https://datacircle.dev/keyword-research-apis/local-seo-data/free-post-v1-keywords-overview/llms.txt)
- [Local SEO Data Ranked keywords API pricing, 5 plans](https://datacircle.dev/ranked-keywords-apis/local-seo-data/free/llms.txt)
- [Local SEO Data SERP API pricing, 5 plans](https://datacircle.dev/serp-apis/local-seo-data/free/llms.txt)
- [Local SEO Data Local business reviews API pricing, 5 plans](https://datacircle.dev/local-business-reviews-apis/local-seo-data/free/llms.txt)
- [Local SEO Data Domain authority API pricing, 5 plans](https://datacircle.dev/domain-authority-apis/local-seo-data/free/llms.txt)
- [Local SEO Data Local business search API pricing, 5 plans, POST /v1/business/listings](https://datacircle.dev/local-business-search-apis/local-seo-data/free-post-v1-business-listings/llms.txt)
- [Local SEO Data Local business search API pricing, 5 plans, POST /v1/serp/local-finder](https://datacircle.dev/local-business-search-apis/local-seo-data/free-post-v1-serp-local-finder/llms.txt)
- [Local SEO Data Local business search API pricing, 5 plans, POST /v1/serp/local-pack](https://datacircle.dev/local-business-search-apis/local-seo-data/free-post-v1-serp-local-pack/llms.txt)
- [Local SEO Data Local business search API pricing, 5 plans, POST /v1/serp/maps](https://datacircle.dev/local-business-search-apis/local-seo-data/free-post-v1-serp-maps/llms.txt)
- [Local SEO Data Related keywords API pricing, 5 plans, POST /v1/keywords/suggestions](https://datacircle.dev/related-keywords-apis/local-seo-data/free-post-v1-keywords-suggestions/llms.txt)

## Local SEO Data: related keywords API alternatives

[Local SEO Data alternatives: other related keywords API providers by price](https://datacircle.dev/local-seo-data-alternatives.txt)

We list Local SEO Data's cheapest paid plan first. Next we list other providers' plans closest to Local SEO Data in price per 1,000 keywords.

- [Local SEO Data, $149 monthly, Scale, POST /v1/keywords/suggestions](https://datacircle.dev/related-keywords-apis/local-seo-data/149-monthly-scale-post-v1-keywords-suggestions/llms.txt): $17.135 per 1,000, 50% complete
- [EverBee, top-up](https://datacircle.dev/related-keywords-apis/everbee/top-up/llms.txt): $7.50 per 1,000, 33% complete
- [Morningscore, $69 monthly](https://datacircle.dev/related-keywords-apis/morningscore/69-monthly/llms.txt): $13.80 per 1,000, 50% complete
- [Ahrefs, $2,490 yearly, Standard, GET /v3/keywords-explorer/matching-terms, Matching terms, full](https://datacircle.dev/related-keywords-apis/ahrefs/2490-yearly-standard-get-v3-keywords-explorer-matching-terms-matching-terms-full/llms.txt): $17.897 per 1,000, 50% complete
- [SignalSumo, $2,499 yearly](https://datacircle.dev/related-keywords-apis/signalsumo/2499-yearly/llms.txt): $20.825 per 1,000, 100% 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 2026-11-11.

- https://localseodata.com/docs/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://localseodata.com/docs/rate-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://localseodata.com/llms-full.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://localseodata.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://localseodata.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing
- https://localseodata.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=related-keywords-api-pricing