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Delx Commerce Keyword Density Analyzer
x402
Delx Commerce Keyword Density Analyzer is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).
Counts occurrences and calculates density percentages of specified keywords within a supplied text block
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with the schema identifier, a list of keyword results (each with the keyword string, its raw count, and its density as a percentage of total words), and the total word count of the input text.
Example use cases
SEO content audit for a blog post
“Check the keyword density for 'machine learning' and 'AI' in this article: 'Machine learning is reshaping industries. AI-driven tools leverage machine learning to automate decisions. AI is now central to every modern tech stack.' — I want to know if I'm hitting my target keyword frequency.”
Marketing copy keyword balance check
“I just wrote this product description and want to make sure I'm not keyword-stuffing 'secure' and 'privacy' — can you measure how dense those words are? Here's the text: 'Our secure platform ensures your privacy. Secure connections and privacy-first design are at the core of everything we do.'”
Competitive content keyword frequency analysis
“Take this paragraph from a competitor's landing page and tell me how often they use the words 'cloud', 'scalable', and 'enterprise': 'Our cloud platform is built for enterprise teams. Scalable cloud infrastructure powers enterprise workflows at any size. Scalable and enterprise-ready by design.'”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/keyword-density?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, cheap, pay-per-call keyword frequency and density computation without spinning up your own NLP pipeline. It is ideal for SEO audits, content optimization checks, and any agent workflow that needs to verify keyword saturation in a text snippet. At $0.003 per call with no signup required and USDC micropayment settlement, it suits high-frequency programmatic content analysis where per-call cost matters.
Side effects
- Empty or missing text field returns no meaningful density results
- Keywords array is empty — response will list no keyword results
- Extremely long text may hit payload limits
- Non-UTF-8 encoded text may cause parsing errors
- Misspelled keywords will return zero counts since matching is exact
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | UTF-8 text to encode, chunk, index, or analyze (caller-supplied only). |
| keywords | array | Keywords or phrases to measure inside the supplied text. |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/util-keyword-density/v1",
"keywords": [
{
"count": 2,
"keyword": "agent",
"density_percent": 40
},
{
"count": 1,
"keyword": "commerce",
"density_percent": 20
}
],
"word_count": 5
}
}Tags
x402
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