# Services from creditcard.openverbs.com on Zero

> creditcard.openverbs.com serves 5 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/creditcard.openverbs.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/creditcard.openverbs.com/health.json

## Services

- [Payment Card Number Masking](https://www.zero.xyz/c/payment-card-number-masking-e13275cf/llms.txt): $0.002/call via x402. Masks a payment card number, replacing middle digits with a configurable mask character (default *)
- [Payment Card Numbers Generator](https://www.zero.xyz/c/payment-card-numbers-generator-976a322c/llms.txt): $0.002/call via x402. Generates syntactically valid payment card numbers for a specified card network and length
- [Payment Card Number Validator](https://www.zero.xyz/c/payment-card-number-validator-195868e7/llms.txt): $0.002/call via x402. Validates a payment card number by checking its format and authenticity using standard card number verification algorithms.
- [Payment Card Network Lookup](https://www.zero.xyz/c/payment-card-network-lookup-05027c9e/llms.txt): $0.002/call via x402. Identifies the payment card network (e.g. Visa, Mastercard, Amex) from a given card number
- [Payment Card Number Formatter](https://www.zero.xyz/c/payment-card-number-formatter-7c44fa94/llms.txt): $0.002/call via x402. Formats a raw payment card number string (with optional spaces/hyphens) into a standardized format

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)