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Creator Desk Contains-Literal Utility
x402
Creator Desk Contains-Literal Utility is a paid API for AI agents from creator-desk-x402-isolated.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Checks whether a given value contains a specified literal substring or element, returning a boolean result via x402-paid API.
Price / call$0.01
Success—
StatusUnknown
How this service works
Machine-callable x402-paid utilities for autonomous agents.
Output
Returns a JSON object with a 'result' field indicating whether the literal was found (true/false or equivalent), and an 'operation' field confirming 'contains_literal'.
Example use cases
Keyword presence check in user input
“Does the user's comment 'Please refund my order immediately, this is urgent' literally contain the word 'refund'? Give me a yes or no.”
Literal pattern detection in log lines
“Check if this log line 'ERROR: null pointer exception at line 42' literally contains the text 'null pointer' — I need to know before routing it.”
Content filter for agent pipeline
“Tell me whether the text 'Buy now and get 50% off, limited time offer!!!' literally contains the word 'off' — I'm filtering promotional content.”
Technical details
Endpoint
POSThttps://creator-desk-x402-isolated.onrender.com/v1/utility/contains-literal?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs a lightweight, pay-per-call literal substring check without setting up a local string library, or when operating in an x402-compatible autonomous payment pipeline that bills only for actual checks performed.
Side effects
- Missing 'value' field returns validation error
- Malformed request body causes 400-level response
- Payment not fulfilled via x402 protocol returns 402 Payment Required
- Service unavailable on cold Render.com instance causes timeout or 503
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| value | — | |
| options | object |
Output
Schema · Response
{
"type": "json",
"example": {
"result": "example",
"operation": "contains_literal"
}
}Tags
x402
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