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CONNSKILL Keyword Metrics API
x402
CONNSKILL Keyword Metrics API is a paid API for AI agents from agent.connskill.com, paid per call via x402, $0.15/call, status healthy (last checked 2026-09-15, last successful call 2026-09-11).
Returns SEO keyword metrics including search volume, CPC, and competition score for a list of keywords, with monthly trend data.
Price / call$0.15typically ~$0.150/call
Success92%
StatusHealthy
How this service works
Search volume, CPC and competition for up to 1000 keywords (Google Ads data)
Output
Returns an array of keyword objects each containing: the keyword string, overall search volume, CPC (cost-per-click in USD), competition score (0–1), and a monthly breakdown of search volume by year and month. Also includes a status field indicating delivery success.
Example use cases
Pre-campaign keyword budget estimation
“I'm planning a Google Ads campaign targeting 'project management software' and 'task management tool' in the US — can you look up the CPC and monthly search volumes for those keywords so I can estimate my budget?”
SEO content prioritization
“I want to create blog content around 'sourdough bread recipe', 'sourdough starter', and 'sourdough hydration' — can you check the search volume and competition scores for those keywords so I know which to prioritize?”
Local market keyword research
“We're launching a plumbing business in Munich and want to know how many people search for 'Klempner München', 'Notfall Klempner', and 'Rohrreinigung München' — pull the German keyword metrics including CPC and competition for those three.”
Technical details
Endpoint
POSThttps://agent.connskill.com/v1/keyword-metricsWhen to prefer
Choose this endpoint when you need raw keyword-level SEO metrics — search volume, CPC, and competition — for one or more specific keywords, optionally scoped to a language and geographic market. It is ideal for programmatic keyword research workflows, ad budget estimation, and content prioritization without requiring an account or monthly subscription. Prefer this over full SERP scraping APIs when you only need aggregate keyword statistics rather than live search result rankings.
Side effects
- Empty or missing keywords array returns a validation error
- Invalid language_code or location_code may return empty results or an error
- Keywords with no search history return zero or null values for volume and CPC
- Payment failure via x402 prevents the call from being processed
- Rate limits or backend data provider outages may cause delayed or failed responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| keywordsrequired | array | Keywords to look up (max 1000). A single string is also accepted and treated as a one-element list. |
| language_code | string | ISO language code, defaults to de |
| location_code | number | Location code (2276 = Germany, 2840 = United States) |
Output
Schema · Response
{
"type": "object",
"description": "Search volume, CPC and competition for up to 1000 keywords (Google Ads data)"
}Tags
x402
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