01
Prompt
An agent — Claude, ChatGPT, or any MCP-capable runtime — receives a natural-language instruction: actuate a chassis, poll a probe, dispatch a UAV.
0xBs is the machine-payable control plane for physical AI. Wrap any microcontroller into a globally addressable x402 endpoint. Claude, ChatGPT, and any funded agent discover the device, settle USDC, and invoke actuation or telemetry — no merchant account, no firmware payment stack.
x402 → ESP32 → motors

Claude · discovery · x402 settlement · L298N chassis
Watch proof →Settlement proof
An operator flashes an ESP32. An agent issues a natural-language instruction. The control plane prices the service, challenges with HTTP 402, clears USDC on Base, and relays the command over MQTT. Motors fire. The receipt is on-chain.
Control loop
01
An agent — Claude, ChatGPT, or any MCP-capable runtime — receives a natural-language instruction: actuate a chassis, poll a probe, dispatch a UAV.
02
It fetches the public device contract. Argument schemas, price, and payout rail are machine-readable. No proprietary SDK on the agent side.
03
Paid services answer HTTP 402. The x402 adapter presents USDC. Settlement clears to the operator wallet on Base or Solana before a single GPIO toggles.
04
The control plane relays over private MQTT. The MCU runs the wrapped function — motors, telemetry, payload — and returns a receipt to the agent.





MCU-class merchants
The microcontroller does not custody keys, run a wallet, or speak PCI. It wraps a function. When a funded agent anywhere on the public internet presents an x402 client, settlement clears to the operator wallet, then GPIO fulfills. Commodity ESP32 silicon becomes a globally addressable merchant — no acquiring bank, no firmware rewrite of the payment plane.

Metered telemetry
Soil probes, weather stations, energy meters, occupancy arrays — any reading becomes a paywalled primitive. Agents purchase a sample the same way they purchase a software API. Operators capture micropayment yield on every poll, from any jurisdiction an agent can reach the public internet.
Hardware is no longer a local asset. It is inventory on a machine-to-agent market.
For integrators
If an agent already pays software APIs over x402, it already knows how to pay a greenhouse probe or an L298N chassis. Firmware wraps the function. The agent never sees MQTT.
MCU BOM as a merchant
on-device wallet or PCI
finest USDC settlement
#include <OxBS.h>
OxBS oxbs;
oxbs.wrap(FORWARD_ID, [](JsonVariantConst args, JsonObject result) {
drive(args["seconds"] | 1);
result["action"] = "forward";
});
oxbs.setPrice(FORWARD_ID, [](JsonVariantConst args) {
return OxBS::usd((args["seconds"] | 1) * 0.01f);
});
oxbs.begin(CONNECTOR_ID, API_KEY);Existing GPIO becomes a priced service
Open HTTP 402 — Coinbase, AgentKit, MCP
USDC settlement, on-chain receipt
Expose silicon as inventory. Capture yield on every agent call.
Give Claude and ChatGPT a funded x402 client. They buy the physical world.