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ONE Engine Text Includes Check
x402
ONE Engine Text Includes Check is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0009/call, status unknown (last checked 2026-10-02).
Checks whether a given search string is contained within a provided text, returning a boolean match result.
Price / call$0.0009
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
Returns a JSON object with a single boolean field 'matches' indicating whether the search string was found within the provided text.
Example use cases
Keyword presence in scraped content
“I just scraped a product page — can you check if the text includes the word 'discontinued' so I know whether to flag it?”
Filter agent output for compliance terms
“Take this LLM-generated response and check if it contains the phrase 'guaranteed returns' — I need to know before publishing it.”
Validate user input contains required field
“A user submitted a support ticket — can you check whether their message actually includes the word 'invoice' before routing it to the billing team?”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v1/text/includes?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, cheap, deterministic substring check on a text string without running a full search index or regex engine yourself. At $0.0009 USDC per call it is ideal for high-frequency agent pipelines that need to gate on keyword presence. Prefer this over LLM-based contains-checks when latency and cost matter and the match is purely literal.
Side effects
- Missing 'text' or 'search' fields in request body returns an error
- Empty string inputs may return unexpected matches or errors
- Payment failure via x402 results in 402 response and no result
- Very large text inputs may exceed payload limits
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | |
| search | string |
Output
Schema · Response
{
"type": "json",
"example": {
"matches": true
}
}Tags
x402
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