The schemas

The vocabulary is used in four kinds of document. Each has a schema with a permanent URI. A document carries its owner; the schema carries none.

Document	Who writes it	What it holds	Schema
Vendor declaration	a printer, or its MIS	identity · capability · offerings · quotes	ptpge.org/v1/schemas/vendor-declaration/1
Supplier catalogue	a paper or equipment maker	the maker's series and models, in the vocabulary	…/schemas/supplier-catalogue/1
Request	a buyer or an agent	a configuration and a quantity, asked of one or many vendors	…/schemas/request/1
UCP manifest	a storefront	the PTPGE identity on a checkout line	…/schemas/ucp-manifest/1

Status: schemas in preparation — the vendor declaration first. A validator on the open MCP server will check conformance.