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Delx Commerce — Mask Middle Text Utility
x402
Delx Commerce — Mask Middle Text Utility 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).
Masks the middle characters of a string, preserving the first and last few characters for safe display of sensitive values
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
Returns a JSON object with the masked text string (middle characters replaced with asterisks), the total length of the original string, and a schema identifier ('delx/util-mask-middle/v1') confirming the operation type.
Example use cases
Safe API key display in dashboard
“I need to show this API key in the user dashboard without exposing the full secret — mask the middle of sk_live_abc123456789xyz23456 so only the start and end are visible.”
Redact token in audit log
“Before writing this auth token to the audit log, mask the middle characters so it's not fully exposed: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.abc123.”
Obfuscate credit card for receipt
“Mask the middle digits of this card number so I can display it on the receipt safely: 4111111111111234”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/mask-middle?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, pay-per-call, no-signup utility to safely mask sensitive strings (API keys, tokens, card numbers) for display or logging. Prefer it over building custom masking logic when you need a verifiable, auditable transformation delivered via x402 micropayment — especially useful in agent pipelines where credential sanitization is needed before output is surfaced to users or written to logs.
Side effects
- Empty or missing 'text' field returns an error
- Extremely long strings may be truncated or rejected
- Non-string input types may cause a 400 bad request
- Payment failure via x402 protocol prevents execution
- Network timeout on the Base/Solana payment settlement
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Input field: text. |
Output
Schema · Response
{
"type": "json",
"example": {
"text": "sk_li**********23456",
"length": 20,
"schema": "delx/util-mask-middle/v1"
}
}Tags
x402
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