Issn x402 REST usage
Call when an agent has an ISSN and needs the checksum result. Does not confirm the journal.
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Call when an agent has an ISSN and needs the checksum result. Does not confirm the journal.
Call when an agent has an Incoterms 2020 code and needs who pays the main carriage. Does not draft a contract.
Call when an agent has an EVM chain id and needs the network name and native symbol. Not a gas price.
Call when an agent has an Ethereum address and needs the EIP-55 checksum form. Does not confirm the account or a balance.
Call when an agent needs an RFC 4648 or Crockford base32 length check. Decoded bytes are not returned.
Call when an agent needs the IANA meaning of an HTTP status code. Unknown codes return 404. Not a live server status.
Call when an agent has a UUID and needs the RFC 9562 version and variant. Not a registry lookup.
Call when an agent needs Semantic Versioning 2.0.0 precedence for two versions. Build metadata is ignored. Not a package registry.
Call when an agent has a file extension and needs the Apache mime.types media type. Unknown extensions return 404. Not a filename lookup and not a content sniff.
Call when a photo of a receipt, invoice, or delivery note must become merchant, date, currency, total, and line items. Returns JSON only. Does not keep the image.
Provider identity is derived from the domain or repository in the source record. If two vendors share a host, they appear together here — that is a limitation of the data, not a statement about ownership.