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Delx Commerce — Swap Case Text Transformer
x402
Delx Commerce — Swap Case Text Transformer is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Converts all uppercase letters in a text string to lowercase and all lowercase letters to uppercase (swap case transformation).
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
A JSON object containing a 'text' field with the case-swapped version of the input string (all uppercase characters converted to lowercase and vice versa), along with a 'schema' field identifying the response format as 'delx/util-swap-case/v1'.
Example use cases
Normalize mixed-case user input
“Take this string 'JoHn DoE' and swap the case of every letter so I can see it inverted.”
Invert formatted code snippet casing
“I have this label 'camelCaseVariable' — can you swap all the uppercase and lowercase letters in it?”
Flip casing in a stylized social post
“Swap the case in this phrase 'hELLO fRIENDS' so the uppercase letters become lowercase and the lowercase ones become uppercase.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/swap-case?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, pay-per-result, no-signup swap-case transformation with verifiable delivery and USDC micropayment settlement. Ideal for agents that need deterministic character-level case inversion without setting up API keys or subscriptions.
Side effects
- Missing or empty 'text' field in request body — likely returns a 400 error
- Non-string value passed as 'text' — may return a validation error
- Payment failure or insufficient USDC balance — returns HTTP 402 requiring payment
- Network timeout — returns connection error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Input field: text. |
Output
Schema · Response
{
"type": "json",
"example": {
"text": "hELLOwORLD",
"schema": "delx/util-swap-case/v1"
}
}Tags
x402
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