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Keyword metrics overview
Keyword volume API: get exact SEO metrics for a list of keywords you already have: Google monthly search volume, CPC, competition, keyword difficulty and search intent for each. For prioritising a keyword list. Unknown keywords are omitted.
| Host | seo.openverbs.com |
|---|---|
| Price | $0.006–$0.18 per call |
| Network | Base |
| Paid endpoints listed | 24 |
| Calls, last 30 days* | 1,253 |
| Most unique payers on one endpoint (30 days)* | 6 |
| Last paid call* | 2026-10-17 |
| Tags | referring domains api, backlink profile api, keyword research, competing domains api, related keywords api, keyword research api, keyword difficulty api, keyword competition api |
* From the public x402 Bazaar index (snapshot 2026-10-18T04:07Z); reported by the facilitator, not measured by us.
Endpoints
| URL | Method | Price |
|---|---|---|
https://seo.openverbs.com/v1/keyword-overviewKeyword volume API: get exact SEO metrics for a list of keywords you already have: Google monthly search volume, CPC,… | POST | $0.04 |
https://seo.openverbs.com/v1/ranked-keywordsGet the Google organic keywords a domain already ranks for, each with its ranking position, ranking URL, monthly… | POST | $0.05 |
https://seo.openverbs.com/v1/domain-overviewDomain overview: estimate a domain's Google SEO footprint — total organic and paid keywords, estimated traffic (ETV),… | POST | $0.04 |
https://seo.openverbs.com/v1/on-pageOn-page SEO audit API - crawl a single URL and return its on-page SEO health: overall score, title & meta description,… | POST | $0.006 |
https://seo.openverbs.com/v1/keyword-gapKeyword gap analysis API - find the Google keywords a competitor ranks for that your domain does not, each with the… | POST | $0.05 |
https://seo.openverbs.com/v1/referring-domainsList the domains linking to a target, each with DataForSEO domain rank, number of backlinks, dofollow count, referring… | POST | $0.05 |
https://seo.openverbs.com/v1/backlinksGet a domain's backlink profile and authority: DataForSEO domain rank, total backlinks, referring domains and main… | POST | $0.06 |
https://seo.openverbs.com/v1/keyword-suggestionsKeyword suggestions API: discover keywords to target from a website or page using Google Ads Keyword Planner data,… | POST | $0.15 |
https://seo.openverbs.com/v1/pagespeedPage speed API - Google PageSpeed Insights (Lighthouse) performance audit for a URL on mobile or desktop. Returns the… | POST | $0.006 |
https://seo.openverbs.com/v1/relevant-pagesRelevant pages API - list a domain's best-performing pages in Google, each with page-level organic and paid metrics:… | POST | $0.05 |
https://seo.openverbs.com/v1/historical-rankHistorical rank overview API - a monthly time series of a domain's Google organic and paid visibility: ranked keyword… | POST | $0.18 |
https://seo.openverbs.com/v1/backlink-anchorsBacklink anchor text API - list the anchor texts pointing at a domain, each with how many backlinks, referring domains… | POST | $0.05 |
https://seo.openverbs.com/v1/backlinks-historyGet a domain's backlink profile over time: a monthly timeseries of domain rank, total backlinks, new and lost… | POST | $0.05 |
https://seo.openverbs.com/v1/traffic-estimateWebsite traffic estimator API - estimate monthly Google organic and paid traffic (ETV) and ranked-keyword counts for… | POST | $0.05 |
https://seo.openverbs.com/v1/search-intentClassify the search intent behind keywords: for each keyword, the dominant intent (informational, navigational,… | POST | $0.03 |
https://seo.openverbs.com/v1/competitorsFind a domain's organic search competitors: rival domains ranking for the same Google keywords, each with the number… | POST | $0.05 |
https://seo.openverbs.com/v1/keyword-ideasKeyword ideas API: discover related keyword ideas from a seed keyword for keyword research, each with Google monthly… | POST | $0.04 |
https://seo.openverbs.com/v1/trendsGoogle Trends search interest for up to 5 terms: a relative 0-100 popularity series over time, with per-keyword… | POST | $0.03 |
https://seo.openverbs.com/v1/keyword-volume-historyKeyword volume history API: get Google monthly search volume history for a list of keywords, back to 2019: a… | POST | $0.15 |
https://seo.openverbs.com/v1/related-keywordsRelated keywords API - expand a seed keyword using Google's "searches related to" graph, returning the related… | POST | $0.04 |
https://seo.openverbs.com/v1/keyword-difficultyKeyword difficulty API: get the SEO keyword difficulty score (0-100, how hard it is to rank in Google top 10) for up… | POST | $0.03 |
https://seo.openverbs.com/v1/serp-competitorsSERP competitors API - given a set of target Google keywords, find the domains that dominate those search results,… | POST | $0.05 |
https://seo.openverbs.com/v1/keyword-variationsKeyword variations API: expand a seed phrase into keywords containing that phrase, such as 'running shoes' into… | POST | $0.04 |
https://seo.openverbs.com/v1/page-intersectionGiven a set of specific page URLs, find the Google keywords those pages jointly rank for, with each page's position,… | POST | $0.05 |
Source: x402 Bazaar discovery API (Coinbase CDP) · Licence: Public discovery metadata; descriptions by each provider. Listed in x402 pay-per-call APIs. We list tools; we do not test, rate or endorse them.
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