OpenPrinterOpenPrinter Agent Gateway
Agent reports inventory changes
The agent sends additions, updates, and removals relative to the prior inventory revision. A server applies the change only when the revision advances without conflicting with its current registry.
Address
/.well-known/openprinter/gatewayDescription
The authenticated, bidirectional OPPA gateway socket.
Messages
A delta from the previous inventory revision. Apply additions and
updates, remove the listed IDs, and retain the new revision as the
current snapshot version.
Payload
Message Example
{ "protocolVersion": "1", "messageId": "inventory_change_01", "sentAt": "2026-08-21T00:01:02Z", "type": "agent.printer_inventory_changed", "payload": { "revision": 8, "added": [], "updated": [], "removedPrinterIds": [ "printer_old" ] }}