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SiteCheck Headline Generator
x402
SiteCheck Headline Generator is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-16).
Generates multiple headline variations for a given topic or source text in news, SEO, social, or email styles
Price / call$0.002
Success—
StatusUnknown
How this service works
Up to 10 headlines for a text or topic in one style: news, seo (under 60 characters, enforced in code), social or email subject. Each headline comes with its character count. Model output: check claims before publishing. Input text max 10,000 characters.
Output
Returns a JSON object containing the requested style label, the number of headlines dropped (if any), a timestamp, and an array of headline objects each with the headline text and its character count.
Example use cases
Blog post SEO headline testing
“I have this blog post draft about remote work productivity — can you give me 8 SEO-optimized headline options for it? Here's the intro paragraph: 'Remote workers report 23% higher productivity when using structured daily routines, according to a new Stanford study released this week.'”
Email newsletter subject line ideas
“Write me 5 email-style subject lines for a newsletter about our spring sale — the topic is 'Spring sale: 30% off all outdoor furniture this weekend only'”
Social media headline brainstorm
“I need 3 social media headlines for a post about our new app launch — the app is called Habitly and it helps people build daily habits through micro-challenges. Can you write them in a social style?”
Technical details
Endpoint
POSThttps://api.sitecheck-api.workers.dev/api/text/headlines?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need multiple distinct headline variations for a single piece of content or topic, especially when you want style-specific output (news, SEO, social, or email). It is ideal for content teams running A/B tests, marketers drafting campaign copy, or agents automating content pipelines where character counts matter. Prefer it over generic LLM completions when you need structured, consistently formatted headline output with character-length metadata per headline.
Side effects
- Text exceeds 10,000 character limit — request rejected
- Count outside 1-10 range — validation error returned
- Neither text nor topic provided — missing required field error
- Invalid style enum value — error or fallback to default 'news' style
- Payment not received or insufficient USDC — 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Source text (max 10,000 characters); use this or topic |
| count | integer | Number of headlines, 1-10 (default 5) |
| style | string | news (default), seo, social or email |
| topic | string | Topic (max 300 characters); use this or text |
Output
Schema · Response
{
"type": "json",
"example": {
"style": "news",
"dropped": 0,
"checkedAt": "2026-10-15T18:21:12.719Z",
"headlines": [
{
"text": "New Bike Lane Opens in Downtown Area",
"characters": 36
},
{
"text": "Downtown Bike Lane Now Open to Public",
"characters": 37
},
{
"text": "City Unveils New Bike Lane Infrastructure",
"characters": 41
}
]
}
}Tags
x402
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