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 2026-10-29, last successful call 2026-10-22).

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

Seller volume →—

Success83%

StatusHealthy

How this service works

Keyword demand check for up to 1000 chosen terms: search volume, CPC, advertising competition and available monthly history from Google Ads data. Advertising competition is not organic SEO difficulty.

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-metrics?utm_source=zero.xyz

When 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": "Keyword demand check for up to 1000 chosen terms: search volume, CPC, advertising competition and available monthly history from Google Ads data. Advertising competition is not organic SEO difficulty."
}

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