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BlockRun.AI Find Similar Pages
x402
BlockRun.AI Find Similar Pages is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns a list of web pages that are semantically similar to a given reference URL, using Exa's similarity search.
Price / call$0.01
Success—
StatusUnknown
How this service works
Find pages semantically similar to a given URL.
Output
A list of web pages semantically similar to the input URL, including page titles, URLs, and relevance metadata, up to the requested number of results (default 10, max 100).
Example use cases
Example prompt
“Find me 15 web pages that are semantically similar to https://vitalik.eth.limo/general/2024/01/01/end.html — I want to discover related content on that topic.”
Technical details
Endpoint
POSThttps://blockrun.ai/api/v1/exa/find-similarWhen to prefer
Use this endpoint when you need to discover web pages topically or semantically related to a known URL — ideal for content research, competitive analysis, finding related articles, or building recommendation feeds. Prefer this over a keyword search when you have a reference page and want conceptually similar content rather than keyword matches.
Side effects
- Invalid or unreachable URL returns an error or empty results
- numResults exceeding 100 may be rejected or capped
- URL pointing to paywalled or non-indexed content may yield poor similarity matches
- Payment failure via x402 protocol returns 402 status
- Malformed request body returns 400 validation error
Input
{
"url": "https://example.com/article-about-artificial-intelligence",
"numResults": 10
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Reference URL — pages similar to this will be returned. |
| numResults | number | Number of results to return (default 10, max 100). |
Output
{
"results": [
{
"id": "https://examplearticles.info/content_writing/article_examples",
"url": "https://examplearticles.info/content_writing/article_examples",
"score": 0.8773586750030518,
"title": "Article examples",
"author": null
},
{
"id": "https://www.articlewebdirectory.com/label/artificial-intelligence",
"url": "https://www.articlewebdirectory.com/label/artificial-intelligence",
"score": 0.8709452748298645,
"title": "Artificial Intelligence -",
"author": "by"
},
{
"id": "https://www.example3.com/domain/articlemisc.com",
"url": "https://www.example3.com/domain/articlemisc.com",
"score": 0.8689068555831909,
"title": "articlemisc.com | Cuan Gampang Bonus Deposit 100% -",
"author": null
},
{
"id": "https://everythingarticles.com/articles/category/ai/",
"url": "https://everythingarticles.com/articles/category/ai/",
"score": 0.8671719431877136,
"title": "AI – Everything Articles",
"author": null
},
{
"id": "http://www.article-article.com/",
"url": "http://www.article-article.com/",
"score": 0.8630191087722778,
"title": "article-article.com",
"author": null
},
{
"id": "https://articleai.info/",
"url": "https://articleai.info/",
"score": 0.8625504970550537,
"title": "articleai.info - articleai Resources and Information.",
"author": null
},
{
"id": "https://startuparticle.com/tag/artificial-intelligence/",
"url": "https://startuparticle.com/tag/artificial-intelligence/",
"score": 0.8620844483375549,
"title": "Artificial Intelligence Archives - Start Up Article",
"author": "SA Team"
},
{
"id": "https://www.earticlesource.com/examplearticle/",
"url": "https://www.earticlesource.com/examplearticle/",
"score": 0.8616280555725098,
"title": "EXAMPLEARTICLE",
"author": "Brandon",
"publishedDate": "2025-02-10T00:00:00.000Z"
},
{
"id": "https://articlenews365.com/sample-page/",
"url": "https://articlenews365.com/sample-page/",
"score": 0.8596310615539551,
"title": "Sample Page – Article",
"author": null
},
{
"id": "http://subdomain.exampledomain.com/some-article",
"url": "http://subdomain.exampledomain.com/some-article",
"score": 0.8582648634910583,
"title": "Some article",
"author": null
}
],
"requestId": "5668e6dc946eb7e9f4ef2c6d9156cbe3",
"searchTime": 1874.5624069999903,
"costDollars": {
"total": 0.007,
"search": {
"neural": 0.007
}
}
}Tags
x402
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