Proof-of-human ships as a robot primitive: no API key, no per-check fee

The interesting number in the medication demonstration is three. The patient verifies before the order is accepted, the pharmacist verifies before loading the compartment and sealing it, and the recipient verifies again before it unlocks ^[5]. Under a metered verification API, an engineer prices that flow at three calls per delivery and then starts arguing about which two to cut. The peaqOS integration is described as charging nothing per verification and requiring no key at all ^[2], which turns a budget conversation into a placement conversation: not how many checks you can afford, but which state transitions in a physical handover are worth attesting ^[1].

The machine side of the handshake matters as much as the human side. peaqOS supplies the coordination layer: robots carry peaq decentralised identifiers, find the verification service through the Machine Market, and run the exchange from request through result ^[7]. So the shape is two attested parties, not a login form bolted onto a delivery cart.

The use case that will travel furthest is probably not delivery at all, but uniqueness. A robot handing out promotional items can enforce one per human without keeping a database of who received what ^[9], and a shared machine can establish that a user is a real, unique person without making them open an account first ^[10]. That is a harder property than it sounds: the machine has to distinguish a returning human from a new one while never learning who either is, which is what the World App proof is described as providing ^[3], along with the ability to show that the person completing an action is the one who started it ^[4].

What the announcement does not carry is any named operator, route, or volume. The pharmacy sequence is presented as a scenario demonstrating the concept ^[5], and there is no explanation of what funds a verification path that charges nothing per call ^[2]. Free integrations tend to be free while adoption is the goal. A sealed compartment that opens for a cryptographic proof instead of a six-digit code is a modest piece of engineering ^[6]; the pricing is the part that will show up in other people's architecture diagrams first.