# Seonio, free $1, POST /api/v1/url/keywords: Ranked keywords API

> Top organic keywords for one URL.

Seonio's ranked keywords API on its Free $1 plan. It costs $0.00 per 1,000 keywords. Seonio's docs list 2 of the 6 key fields we check: Position, Estimated traffic.
We haven't run Seonio through [our ranked keywords API benchmark](https://datacircle.dev/best-ranked-keywords-api.txt) yet.
This plan is free. We rank 149 plans for ranked keywords APIs by price. Half the plans cost $1.00 per 1,000 keywords or less.
[Keys.so's ₽34,900 monthly plan](https://datacircle.dev/ranked-keywords-apis/keys-so/34900-monthly/llms.txt) is the cheapest paid plan per 1,000 keywords. Keys.so's ₽34,900 monthly plan charges nothing per call. You get as many keywords as Keys.so's rate limit allows.
[DataForSEO](https://datacircle.dev/ranked-keywords-apis/dataforseo/top-up-from-50/llms.txt), [Bukvarix](https://datacircle.dev/ranked-keywords-apis/bukvarix/free-without-registration-get-v1-site-keywords-for-one-domain-google-regions/llms.txt) and [AnyAPI](https://datacircle.dev/ranked-keywords-apis/anyapi/top-up-from-10/llms.txt) are the best ranked keywords API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/ranked-keywords-apis/seonio/free-1-post-api-v1-url-keywords
- [Ranked keywords API: Google keyword ranking APIs compared](https://datacircle.dev/best-ranked-keywords-api.txt)
- Get it: https://seonio.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ranked-keywords-api-pricing
- Request: `POST https://seonio.com/api/v1/url/keywords`
- API key: with the plan, on https://seonio.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ranked-keywords-api-pricing
- Its API docs: https://seonio.com/product/api/url/keywords?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ranked-keywords-api-pricing
- Sold by: Seonio (https://seonio.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ranked-keywords-api-pricing)
- Checked: 2026-11-06

## In the answer

- Completeness: 33%
- Position: ✓
- Estimated traffic: ✓

## Price

- $ per 1,000 keywords: $0.00
- Per: page of 100
- Billing: free

## Charges

- Also pays for: from the same budget: Keyword Research · Keyword Difficulty · Keyword Intent · Keyword Demographics · Keyword Clustering · Keyword Suggestions · Keyword Metrics by Country · SERP · SERP Scraper · Scraper · Website Traffic · Website Ranking · Website Category · Website Competitors · Similar Websites · URL Stats · Website Stats · Backlink History · Backlink Table · AI Visibility Report · AI Visibility Result · Site Audit · Site Audit Result · Seonio SEO Agent · SEO Page Checker

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Top organic keywords for one URL.

## Data

- Keep data: no limit
- Use data: [...] you may use reports, API responses, and outputs generated through your account for: your internal business purposes, your own websites, products, applications, and projects, client work performed by you or your organization, integrations that use Seonio data as part of a broader product or workflow, provided that you comply with these Terms and applicable law [...] You must not: resell standalone access to Seonio, resell or sublicense API access, API keys, or your account, resell raw datasets, raw API responses, or raw outputs as a separate data product, use the Service or outputs to build a substantially similar competing service without our written permission, misrepresent Seonio outputs as official, guaranteed, real-time, or independently verified data, remove or obscure any usage restrictions, source notices, or attribution requirements that may be shown in the Service

## Plan

- Pay: $0
- You get: $1
- Enough for: 50 pages, once
- Expires: 30 days after the account is verified

## Rate limit

- Per second: 5
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: url. Optional: limit
- Method: POST
- Path: /api/v1/url/keywords

## About the plan

- Plan: Free $1
- Who can get it: anyone with a verified account

## The 4 fields the plan's answer can hold

target URL, keyword, estimated traffic, position

## Seonio's plans (10)

- [Seonio, free $1, POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/free-1-post-api-v1-url-keywords/llms.txt): $0.00 per 1,000, 33% complete
- [Seonio, $10 pack, Extra Usage $10, POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/10-pack-extra-usage-10-post-api-v1-url-keywords/llms.txt): 33% complete
- [Seonio, $100 pack, Extra Usage $100, POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/100-pack-extra-usage-100-post-api-v1-url-keywords/llms.txt): $0.174 per 1,000, 33% complete
- [Seonio, $1,000 pack, Extra Usage $1,000, POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/1000-pack-extra-usage-1000-post-api-v1-url-keywords/llms.txt): 33% complete
- [Seonio, $15 monthly, Starter, POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/15-monthly-starter-post-api-v1-url-keywords/llms.txt): $0.20 per 1,000, 33% complete
- [Seonio, $30 monthly, Pro, POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/30-monthly-pro-post-api-v1-url-keywords/llms.txt): $0.16 per 1,000, 33% complete
- [Seonio, $60 monthly, Business, POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/60-monthly-business-post-api-v1-url-keywords/llms.txt): $0.133 per 1,000, 33% complete
- [Seonio, $120 yearly, Starter (yearly), POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/120-yearly-starter-yearly-post-api-v1-url-keywords/llms.txt): $0.133 per 1,000, 33% complete
- [Seonio, $240 yearly, Pro (yearly), POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/240-yearly-pro-yearly-post-api-v1-url-keywords/llms.txt): $0.107 per 1,000, 33% complete
- [Seonio, $480 yearly, Business (yearly), POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/480-yearly-business-yearly-post-api-v1-url-keywords/llms.txt): $0.089 per 1,000, 33% complete

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

- `POST /api/v1/url/keywords`: [Seonio, free $1, POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/free-1-post-api-v1-url-keywords/llms.txt)
- `POST /api/v1/website/ranking`: [Seonio, free $1, POST /api/v1/website/ranking](https://datacircle.dev/ranked-keywords-apis/seonio/free-1-post-api-v1-website-ranking/llms.txt)

## Seonio's APIs (8)

- [Seonio: related keywords API pricing, 10 plans](https://datacircle.dev/related-keywords-apis/seonio/free/llms.txt)
- [Seonio: backlink API pricing, 10 plans](https://datacircle.dev/backlink-apis/seonio/free/llms.txt)
- [Seonio: web scraping API pricing, 10 plans](https://datacircle.dev/web-scraping-apis/seonio/free/llms.txt)
- [Seonio: keyword research API pricing, 10 plans, POST /api/v1/keywords/country](https://datacircle.dev/keyword-research-apis/seonio/free-1-post-api-v1-keywords-country/llms.txt)
- [Seonio: keyword research API pricing, 10 plans, POST /api/v1/keywords/global](https://datacircle.dev/keyword-research-apis/seonio/free-1-post-api-v1-keywords-global/llms.txt)
- [Seonio: SERP API pricing, 10 plans, POST /api/v1/serp/country](https://datacircle.dev/serp-apis/seonio/free-1-post-api-v1-serp-country/llms.txt)
- [Seonio: SERP API pricing, 10 plans, POST /api/v1/serp/scraper](https://datacircle.dev/serp-apis/seonio/free-1-post-api-v1-serp-scraper/llms.txt)
- [Seonio: similar companies API pricing, 10 plans, POST /api/v1/website/similar](https://datacircle.dev/similar-company-apis/seonio/free-1-post-api-v1-website-similar/llms.txt)
- [Seonio: similar companies API pricing, 10 plans, POST /api/v1/website/competitors](https://datacircle.dev/similar-company-apis/seonio/free-1-post-api-v1-website-competitors/llms.txt)
- [Seonio: ranked keywords API pricing, 10 plans, POST /api/v1/url/keywords](https://datacircle.dev/ranked-keywords-apis/seonio/free-1-post-api-v1-url-keywords/llms.txt)
- [Seonio: domain authority API pricing, 10 plans, POST /api/v1/url/stats](https://datacircle.dev/domain-authority-apis/seonio/free-1-post-api-v1-url-stats/llms.txt)
- [Seonio: domain authority API pricing, 10 plans, POST /api/v1/website/stats](https://datacircle.dev/domain-authority-apis/seonio/free-1-post-api-v1-website-stats/llms.txt)

## Seonio: ranked keywords API alternatives

- [Mangools, $5 monthly](https://datacircle.dev/ranked-keywords-apis/mangools/5-monthly/llms.txt): $0.067 per 1,000, 50% complete, 1 month
- [XOVI, $499 monthly](https://datacircle.dev/ranked-keywords-apis/xovi/499-monthly/llms.txt): $0.083 per 1,000, 67% complete, 1 week
- [SpyWords, ₽10,000 monthly, API Start, GET /, DomainOrganic (Google)](https://datacircle.dev/ranked-keywords-apis/spywords/10000-monthly-api-start-get-domainorganic-google/llms.txt): $0.119 per 1,000, 50% complete
- [DataForSEO, top-up from $50, Pay as you go, POST /v3/dataforseo_labs/google/ranked_keywords/live](https://datacircle.dev/ranked-keywords-apis/dataforseo/top-up-from-50/llms.txt): $0.12 per 1,000, 100% complete, 1 week

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-06.

- https://seonio.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ranked-keywords-api-pricing
- https://seonio.com/product/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ranked-keywords-api-pricing
- https://seonio.com/product/api/url/keywords?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ranked-keywords-api-pricing
- https://seonio.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ranked-keywords-api-pricing