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Payment Card Number Masking
x402
Payment Card Number Masking is a paid API for AI agents from creditcard.openverbs.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Masks a payment card number, replacing middle digits with a configurable mask character (default *)
Price / call$0.002
Success—
StatusUnknown
How this service works
Mask a card number for display, keeping the first six and last four digits (the PCI-permitted maximum) and replacing the rest with a mask character (default `*`).
Output
Returns a masked version of the provided card number, where sensitive digits are replaced with the specified mask character (default '*'), leaving only the card's non-sensitive portions visible.
Example use cases
Sanitizing card numbers in receipts
“I need to display a payment receipt to the customer — can you mask the card number '5500 0000 0000 0004' with asterisks so only safe digits are shown?”
Redacting card data in support logs
“Before I send these logs to our support team, can you mask the card number '378282246310005' using 'X' as the mask character so no sensitive data is exposed?”
Safe card display in a dashboard
“Can you take the card number '6011111111111117' and mask it with '*' so I can show it in our admin dashboard without exposing the full number?”
Technical details
Endpoint
POSThttps://creditcard.openverbs.com/v1/maskWhen to prefer
Use this endpoint when you need to quickly mask a raw card number for display, logging, or storage purposes without building custom redaction logic. Ideal for PCI-conscious workflows where raw card digits must never appear in UIs, logs, or receipts. Supports custom mask characters for flexible formatting needs.
Side effects
- Missing or empty 'number' field returns a validation error
- Card number exceeding 40 characters is rejected
- Invalid mask character (more than one character) causes an error
- Malformed request body returns a 400-level error
- Payment not settled (x402) returns a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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