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Delx Ends With
x402
Delx Ends With is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Checks whether a given text string ends with a specified suffix, returning a boolean result and the matched suffix.
Price / call$0.001
Success—
StatusUnknown
How this service works
Check whether text ends with a suffix. Call when you validate file extensions or content-type suffixes. Returns boolean result and suffix for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.
Output
Returns a boolean indicating whether the text ends with the given suffix, along with the suffix that was tested. The response is a local JSON result with no external network calls or data retention.
Example use cases
File extension validation before upload
“Before I process this file, can you check whether 'data_export_2024.csv' ends with '.csv' so I know it's the right format?”
MIME type suffix check for API response
“Does the content-type string 'application/vnd.api+json' end with '+json'? I need to know before I try to parse it.”
URL trailing slash enforcement
“Tell me if the URL 'https://example.com/products/' ends with a '/' — I need to enforce consistent trailing slashes in my routing logic.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/ends-withWhen to prefer
Prefer this endpoint when you need a lightweight, stateless string-suffix check with no dependencies, no API keys, and predictable $0.001 flat pricing — ideal for agent pipelines that need to validate file extensions, content-type suffixes, or URL patterns without shipping custom string logic or spinning up a compute environment.
Side effects
- Missing 'text' or 'suffix' field returns a validation error
- Empty string inputs may return unexpected boolean results
- Payment failure (insufficient USDC balance) blocks the call
- Very long strings may time out or hit payload limits
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Input field: text. |
| suffix | string | Input field: suffix. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": true,
"schema": "delx/util-ends-with/v1",
"suffix": ".json"
}
}Tags
x402
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