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BlockRun.AI Web Search
x402
BlockRun.AI Web Search is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Neural and keyword web search with optional category filters including company, research paper, news, PDF, GitHub, tweet, personal site, LinkedIn profile, and financial report.
Price / call$0.01
Success—
StatusUnknown
How this service works
Neural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report.
Output
Returns a list of search results, each containing a result ID, URL, page title, published date, and optionally a favicon and image preview thumbnail.
Example use cases
Example prompt
“Search the web for recent research papers about transformer architecture scaling laws and return 5 results — filter to the 'research paper' category only.”
Technical details
Endpoint
POSThttps://blockrun.ai/api/v1/exa/searchWhen to prefer
Choose this endpoint when you need neural (semantic) or keyword web search with fine-grained category filtering (e.g. only research papers, only tweets, only LinkedIn profiles, only financial reports). Prefer it over generic search APIs when the content type matters and you want structured result metadata like publish date and image preview.
Side effects
- Invalid or unsupported category filter value returns an error
- numResults exceeding 100 may be rejected or capped
- Empty query string may return an error or empty results
- Payment failure (402) if USDC balance is insufficient
- Conflicting includeDomains and excludeDomains may produce empty results
Input
{
"query": "machine learning applications",
"category": "research paper",
"numResults": 5
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | Natural-language search query. |
| category | string | Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report. |
| numResults | number | Number of results to return (default 10, max 100). |
| excludeDomains | array | Exclude these domains from results. |
| includeDomains | array | Restrict results to these domains. |
Output
{
"results": [
{
"id": "https://ieeexplore.ieee.org/iel7/8681925/8697217/08697857.pdf",
"url": "https://ieeexplore.ieee.org/iel7/8681925/8697217/08697857.pdf",
"title": "A Review of Machine Learning and Deep Learning Applications"
},
{
"id": "https://pmc.ncbi.nlm.nih.gov/articles/PMC11191915/",
"url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC11191915/",
"title": "Clinical Applications of Machine Learning",
"favicon": "https://pmc.ncbi.nlm.nih.gov/static/img/favicons/apple-touch-icon.png",
"publishedDate": "2024-04-18T00:00:00.000Z"
},
{
"id": "https://www.sciencedirect.com/journal/machine-learning-with-applications",
"url": "https://www.sciencedirect.com/journal/machine-learning-with-applications",
"image": "https://sdfestaticassets-eu-west-1.sciencedirectassets.com/shared-assets/24/images/elsevier-non-solus-new-grey.svg",
"title": "Machine Learning with Applications | Journal | ScienceDirect.com by Elsevier",
"favicon": "https://sdfestaticassets-eu-west-1.sciencedirectassets.com/shared-assets/103/images/favSD.ico"
},
{
"id": "https://www.sciencedirect.com/topics/computer-science/machine-learning",
"url": "https://www.sciencedirect.com/topics/computer-science/machine-learning",
"image": "https://sdfestaticassets-eu-west-1.sciencedirectassets.com/shared-assets/24/images/elsevier-non-solus-new-grey.svg",
"title": "Machine Learning - an overview | ScienceDirect Topics",
"favicon": "https://sdfestaticassets-eu-west-1.sciencedirectassets.com/shared-assets/103/images/favSD.ico"
},
{
"id": "https://pmc.ncbi.nlm.nih.gov/articles/PMC12551935/",
"url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC12551935/",
"title": "Machine Learning Applications in Population and Public Health: Guidelines for Development, Testing, and Implementation",
"favicon": "https://pmc.ncbi.nlm.nih.gov/static/img/favicons/apple-touch-icon.png"
}
],
"requestId": "15a2d4b382b0a489e00b7eeed1d8fd66",
"searchTime": 1186.1,
"costDollars": {
"total": 0.007,
"search": {
"neural": 0.007
}
},
"resolvedSearchType": ""
}Tags
x402
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