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klymax402 Keyword Research API
x402
klymax402 Keyword Research API is a paid API for AI agents from klymax402.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).
Returns a list of related keywords and SEO research data for a given seed keyword or phrase
Price / call$0.02
Success—
StatusUnknown
How this service works
One MCP endpoint gives your AI agent access to 100 APIs -- crypto, DeFi, web, AI, finance and utilities. No API keys, USDC on Base from $0.003/call.
Output
A JSON object containing the original query, a list of related keywords, a timestamp, and the total count of keywords returned. The keywords array contains SEO-relevant terms derived from the seed phrase.
Example use cases
SEO content strategy for a blog
“I'm writing a blog about project management software — can you do keyword research on 'project management tools' and show me what related keywords I should target?”
PPC campaign keyword expansion
“I'm setting up a Google Ads campaign for my e-commerce store. Can you research keywords around 'best running shoes' so I know which terms to bid on?”
Competitor niche discovery
“I want to find out what keywords are popular in the 'DeFi staking' space — can you run keyword research on that phrase and list everything you find?”
Technical details
Endpoint
GEThttps://klymax402.com/api/keyword-research/api/keywordsWhen to prefer
Use this endpoint when an AI agent needs to programmatically generate keyword ideas or expand a seed term into related SEO or marketing keywords, especially in workflows where no external API key is available and pay-per-call via USDC on Base is acceptable. At $0.02/call it is cost-effective for on-demand keyword lookups in automated content or marketing pipelines.
Side effects
- Missing required 'query' parameter returns an error or empty result
- Very obscure or misspelled seed keywords may return an empty keywords array
- Rate limiting or payment failure (x402) may prevent successful calls
- Generic or overly broad queries may return low-quality or irrelevant keyword sets
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"query": "example",
"keywords": [],
"timestamp": "example",
"totalKeywords": 1
}
}Tags
x402
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