nhevers/project-r0x

Project r0x is the official SDK, Claude Code plugin, and documentation for r0x, a payment system that lets AI agents pay for and use priced digital capabilities on their own, without a human approving each transaction. It is built on Robinhood Chain and uses a stablecoin called USDG for payments, and it implements a payment protocol called x402: an agent finds a capability that has a price attached, authorizes a payment in USDG, and calls that capability, all in a single request with no API keys or subscriptions involved. The repository has several parts. The SDK, published to npm as r0x-os, is a TypeScript client called R0xClient that automatically handles the challenge, sign, and retry steps a payment needs behind the scenes. A Claude Code and Model Context Protocol plugin exposes the same set of capabilities as tools an AI agent can call directly, along with local wallet setup and a guard that limits how much an agent is allowed to spend. There is also an integration for agents built on the Virtuals GAME SDK, giving those agents the same set of functions, with an option to automatically broadcast trades and transfers. The docs folder explains how the underlying facilitator protocol works, and the examples folder includes a small reference client with no extra dependencies. Once installed, the plugin gives an agent access to eighteen tools covering things like checking a wallet balance, sending or receiving funds, getting a price quote, trading, adding or removing liquidity, and bridging funds, and these tools work with any token on Robinhood Chain, not only ETH and USDG. A wallet does not need to be set up in advance: the agent can generate or import one the first time it needs to act. The project can be installed from npm, added as a Claude Code plugin, or built from source with npm install and npm run build. It is released under the MIT license.