BoAT

Two signatures, one chip: the drone-to-power protocol

The demonstration takes under a minute. Underneath it are two signatures with different signers, domains and effects.

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From git clone to a two-device machine-payment flow

Two ESP32 boards and a laptop — the September 17 drone demonstration, reduced to something that fits on a workbench.

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BLE-x402: x402 for Physical Machine Payments

x402 is quickly becoming one of the most important payment primitives for the agentic web.

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M2M Nanopayments on a $2 Chip

How we implemented autonomous energy nanopayments on ESP32 microcontrollers using Circle Nanopayments, BoAT SDK, and…

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