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Keyword Difficulty Scorer
x402
Keyword Difficulty Scorer is a paid API for AI agents from agent.connskill.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-12).
Returns SEO ranking difficulty scores (0–100) for up to 1000 keywords, indicating how hard it is to rank on Google page one
Price / call$0.05
Success—
StatusUnknown
How this service works
SEO ranking difficulty (0-100) for up to 1000 keywords — how hard it is to rank on Google page one
Output
An object containing difficulty scores (0–100) for each submitted keyword, where higher values indicate more competitive SERPs and harder ranking on Google page one. Scores help prioritize keyword targeting by feasibility.
Example use cases
Content strategy prioritization
“I have a list of 50 blog topic keywords for my fitness website — can you score the SEO difficulty for all of them in the US market so I can focus on the ones that are actually achievable to rank for?”
Competitive niche assessment
“We're launching a new SaaS product in Germany and I need to know how hard it would be to rank on Google for these keywords: 'projektmanagement software', 'aufgabenmanagement tool', and 'team collaboration software'. Can you get the difficulty scores for German search (language de, location 2276)?”
Client SEO audit keyword shortlisting
“For my client's e-commerce SEO campaign, I need difficulty scores for these 20 product keywords in English so I can identify which ones are low-hanging fruit under a score of 40.”
Technical details
Endpoint
POSThttps://agent.connskill.com/v1/keyword-difficulty?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need bulk keyword difficulty scoring (up to 1000 at once) with location and language targeting. Prefer it over general SERP analysis when you need a fast, quantified difficulty score for content prioritization rather than full SERP breakdown. Ideal for keyword shortlisting workflows before investing in content creation.
Side effects
- Exceeding the 1000-keyword limit per call results in an error
- Invalid or unsupported language_code or location_code may produce an error or fall back to defaults
- Empty or malformed keywords array returns a validation error
- Network timeout or service unavailability may return a 5xx error
- Payment failure (x402) results in a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| keywordsrequired | array | Keywords to score (max 1000). A single string is also accepted and treated as a one-element list. |
| language_code | string | ISO language code, defaults to en |
| location_code | number | Location code (2840 = United States, 2276 = Germany) |
Output
Schema · Response
{
"type": "object",
"description": "SEO ranking difficulty (0-100) for up to 1000 keywords — how hard it is to rank on Google page one"
}Tags
x402
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