Call when an agent needs whether a string is an IPv6 address. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-ip-ipv6 first.

Call when an agent needs whether a string is a valid ISBN-10 or ISBN-13. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-isbn first.

Call when an agent needs whether an ISBN-10 checksum is valid. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-isbn-10 first.

Call when an agent needs whether an ISBN-13 checksum is valid. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/check-isbn-13 first.

Call when an agent needs whether an ISSN checksum is valid. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-issn first.

Call when an agent needs whether a token has a JWT header shape. No signature check. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/check-jwt-shape first.

Call when an agent needs whether a string is a latitude,longitude pair in range. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-latlon first.

Call when an agent needs whether the digits in a string pass Luhn. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/check-luhn first.

Call when an agent needs whether a string is a colon-separated MAC address. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-mac-colon first.

Call when an agent needs whether a string is a dash-separated MAC address. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/check-mac-dash first.

Call when an agent needs whether a string is a Cisco dotted MAC address. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-mac-dot first.

Call when an agent needs whether a string is a type/subtype media type. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-mime first.

Call when an agent needs whether a numeric string is 1 mod 97. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-mod97 first.

Call when an agent needs whether a phone number matches E.164. No carrier lookup. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-phone-e164 first.

Call when an agent needs whether a phone has at least 10 digits. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-phone-min10 first.

Call when an agent needs whether a phone has at least 7 digits. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-phone-min7 first.

Call when an agent needs whether a phone number matches NANP +1 rules. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/check-phone-nanp first.

Call when an agent needs whether a string is a full Open Location Code. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-plus-code first.

Call when an agent needs a limited JSON Schema 2019-09 check. Dialects disagree on exclusive bounds and format. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-schema-2019-09 first.

Call when an agent needs a limited JSON Schema 2020-12 check. Dialects disagree on exclusive bounds and format. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-schema-2020-12 first.

Call when an agent needs a limited JSON Schema draft-04 check. Dialects disagree on exclusive bounds and format. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/check-schema-draft-04 first.

Call when an agent needs a limited JSON Schema draft-06 check. Dialects disagree on exclusive bounds and format. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-schema-draft-06 first.

Call when an agent needs a limited JSON Schema draft-07 check. Dialects disagree on exclusive bounds and format. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-schema-draft-07 first.

Call when an agent needs whether a string is a caret semver range. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/check-semver-caret first.

Call when an agent needs whether a string is semver with an optional leading v. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-semver-loose first.

Call when an agent needs whether a string is strict semver without a leading v. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-semver-strict first.

Call when an agent needs whether a string is a tilde semver range. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-semver-tilde first.

Call when an agent needs whether a 12-digit UPC-A passes Luhn. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-upc-a first.

Call when an agent needs whether an 8-digit UPC-E-shaped number passes Luhn. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-upc-e first.

Call when an agent needs whether a string is any absolute URL. No fetch. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-url-any first.

Call when an agent needs whether a URL uses the http scheme. No fetch. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/check-url-http first.

Call when an agent needs whether a URL uses the https scheme. No fetch. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-url-https first.

Call when an agent needs whether a URL is http or https. No fetch. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-url-web first.

Call when an agent needs whether a AT VAT checksum is valid. No registry lookup. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-vat-at first.

Call when an agent needs whether a BE VAT checksum is valid. No registry lookup. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-vat-be first.

Call when an agent needs whether a BG VAT checksum is valid. No registry lookup. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-vat-bg first.

Call when an agent needs whether a DE VAT checksum is valid. No registry lookup. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/check-vat-de first.

Call when an agent needs whether a DK VAT checksum is valid. No registry lookup. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-vat-dk first.

Call when an agent needs whether a EE VAT checksum is valid. No registry lookup. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-vat-ee first.

Call when an agent needs whether a ES VAT checksum is valid. No registry lookup. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-vat-es first.

Call when an agent needs whether a FI VAT checksum is valid. No registry lookup. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-vat-fi first.

Call when an agent needs whether a FR VAT checksum is valid. No registry lookup. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-vat-fr first.

Call when an agent needs whether a GB VAT checksum is valid. No registry lookup. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-vat-gb first.

Call when an agent needs whether a HR VAT checksum is valid. No registry lookup. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-vat-hr first.

Call when an agent needs whether a HU VAT checksum is valid. No registry lookup. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-vat-hu first.

Call when an agent needs whether a IT VAT checksum is valid. No registry lookup. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/check-vat-it first.

Call when an agent needs whether a NL VAT checksum is valid. No registry lookup. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-vat-nl first.

Call when an agent needs whether a PL VAT checksum is valid. No registry lookup. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-vat-pl first.

Call when an agent needs whether a PT VAT checksum is valid. No registry lookup. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-vat-pt first.

Call when an agent needs whether a RO VAT checksum is valid. No registry lookup. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/check-vat-ro first.