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x402 SEO Keyword Questions API
x402
x402 SEO Keyword Questions API is a paid API for AI agents from x402-seo-api.restockalarm.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-20).
Returns question-style keyword ideas (how, what, why, etc.) for a given seed keyword, useful for SEO content planning
Price / call$0.02
Success—
StatusUnknown
How this service works
Pay $0.01-0.02 USDC per call on Base via x402
Output
A JSON object containing the seed keyword, a count of results, and an array of question objects each with a rank, question type (e.g. 'how', 'what', 'why'), and the full question text. Example: {count: 1, keyword: 'running shoes', questions: [{rank: 0, type: 'how', question: 'how to clean running shoes'}]}.
Example use cases
Blog FAQ section brainstorming
“I'm writing a blog post about 'intermittent fasting' — can you pull up the top questions people are searching for around that keyword so I can structure a FAQ section?”
Content gap analysis for product page
“We're optimizing our product page for 'standing desk' — what question-style searches are people doing around that term that we should be answering?”
YouTube video topic ideation
“I want to create YouTube videos around 'sourdough bread' — what are the most common how, what, and why questions people are searching for on that topic?”
Technical details
Endpoint
GEThttps://x402-seo-api.restockalarm.workers.dev/v1/questions?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need question-style keyword ideas (how, what, why, which) from a seed keyword for SEO or content planning purposes. It is especially useful for building FAQ sections, structuring content around search intent, or discovering long-tail question queries. Prefer this over general keyword volume tools when the goal is content ideation rather than search volume data.
Side effects
- Missing required 'keyword' query parameter returns an error
- Keyword exceeding 100 characters may be rejected
- Payment not sent or insufficient USDC results in 402 Payment Required response
- Invalid or unsupported language code in 'hl' parameter may return empty or unexpected results
- No questions found for very obscure or niche keywords returns count: 0 with empty array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 1,
"keyword": "running shoes",
"questions": [
{
"rank": 0,
"type": "how",
"question": "how to clean running shoes"
}
]
}
}Tags
x402
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