creditcard.openverbs.com
5 resources listed under creditcard.openverbs.com.
Source: https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources · last updated 2026-09-18
Resources
Generate a random Luhn-valid TEST card number for the given network (d
Generate a random Luhn-valid TEST card number for the given network (default Visa). For testing only — these are not issued cards and cannot be charged. The response is always flagged `test:true`.
Format a card number into the conventional display groups for its netw
Format a card number into the conventional display groups for its network (4-6-5 for Amex, 4-6-4 for 14-digit Diners, otherwise groups of four).
Mask a card number for display, keeping the first six and last four di
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 `*`).
Detect the issuing network/brand (Visa, Mastercard, American Express,
Detect the issuing network/brand (Visa, Mastercard, American Express, Discover, Diners Club, JCB, UnionPay, Maestro) from the card's IIN prefix, with the network's valid lengths. Returns `network:null` for an unrecognized prefix.
Validate a payment-card number: Luhn check-digit test plus network det
Validate a payment-card number: Luhn check-digit test plus network detection and length check. A syntactically valid number that fails Luhn returns `valid:false` (a 200, not an error).
Machine-readable
All resources from this provider: /discovery/merchant (by payment address) or filter /discovery/resources.