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ONE Engine Web Search
x402
ONE Engine Web Search is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-02).
Performs a ranked web search query and returns up to 10 results including URL, title, snippet, and position for a pay-per-call fee of $0.008 USDC via x402 on Base.
Price / call$0.008
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
A JSON object containing the original query string, a tier label (e.g. 'basic'), a count of results returned, and an array of ranked result objects each with a URL, link, title, snippet, date, and integer position. Results are ordered by relevance rank.
Example use cases
Real-time news lookup for agent
“Search the web for 'OpenAI GPT-5 release date' and give me the top 3 results with titles and snippets so I can see what's been published recently.”
Competitor research for a startup
“Search the web for 'best autonomous agent payment APIs 2025' and return the top 10 ranked results including URLs and snippets — I want to see who's competing in this space.”
Fact-checking current events
“Look up 'current US inflation rate June 2025' on the web and return up to 5 results with their titles and source URLs so I can verify the latest figures.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/web-search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a cheap, pay-per-call programmatic web search with no subscription required, billed in USDC via x402 on Base. It is ideal for autonomous agents that need to perform occasional or unpredictable volume web lookups without committing to a monthly SaaS plan. Prefer alternatives like the Serp API or Brave Search API if you need structured data (e.g. news, images, shopping), high volume with flat-rate pricing, or complex filtering options not supported by this basic interface.
Side effects
- Query exceeds 500 characters — request rejected
- Limit parameter outside 1–10 range — validation error
- Payment not received or insufficient USDC — 402 Payment Required
- Network timeout or upstream search provider unavailable — 5xx error
- Empty or missing query string — validation error
- No matching results found — empty results array returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | Maximum number of ranked results to return |
| query | string | Web search query, 1-500 characters |
Output
Schema · Response
{
"type": "json",
"example": {
"tier": "basic",
"count": 1,
"query": "latest AI agent infrastructure",
"results": [
{
"url": "https://example.com",
"date": "",
"link": "https://example.com",
"title": "Example result",
"snippet": "Example search result",
"position": 1
}
]
}
}Tags
x402
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