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Delx Commerce — Mask String
x402
Delx Commerce — Mask String 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 a string by replacing most characters with asterisks, preserving only the first and last characters, for privacy/redaction purposes.
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 containing the masked string (first and last characters preserved, all middle characters replaced with asterisks), the schema identifier 'delx/mask-string/v1', and the source length of the original input string.
Example use cases
Redact API key before logging
“Before I log this API key to our system, mask it so only the first and last characters show — the key is 'sk-abc123xyz987qwerty'.”
Obfuscate email for UI display
“I need to show a user their email address in our app without revealing the full thing — mask 'janedoe@example.com' so it looks redacted.”
Anonymize PII in audit trail
“We're writing a user's phone number to an audit log and need to hide most of it for compliance — can you mask '415-555-1234' before we store it?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/mask-string?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a simple, deterministic, pay-per-call string masking operation with no signup and verifiable delivery. Ideal for agents that need to redact strings on-the-fly at low cost ($0.001 USDC) without integrating a heavier data-masking or PII-detection service. Best for short to medium strings where only basic character-level obfuscation (first/last visible) is needed.
Side effects
- Input text exceeds 100,000 character limit — request rejected
- Missing or empty 'text' field — likely returns a 400 or validation error
- Payment not provided or insufficient USDC — 402 Payment Required response
- Network or service unavailability — 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Primary text input (max 100k chars). Processed first-party; not retained as a dataset. |
Output
Schema · Response
{
"type": "json",
"example": {
"text": "he*************ld",
"schema": "delx/mask-string/v1",
"source_len": 17
}
}Tags
x402
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