Carkken - Fractional Car Ownership on Brickken

Carkken tokenizes vehicles as fractional Real World Assets (RWAs) on Brickken's sandbox. A fleet agent with its own onchain identity (ERC-8004) handles rentals under an owner set mandate, and its reputation is built from feedback left by a separate renter agent. Four vehicles tokenized, investors whitelisted and funded, a live offering launched, and every transaction is a Sepolia call, listed with its hash in the README. Everything runs through one SDK: tokenize, whitelist, mint, approve, invest, register an agent, leave feedback, sign a real x402 payment. The CLI, MCP server, and REST API just call that same SDK, they don't duplicate any of the logic.

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