# Vexi > Vexi is an options protocol on Robinhood Chain testnet. A vault holds one pot of a coin and cash and offers calls and puts at every strike and expiry it writes. What isn't sold waits in a pool; what is sold is locked in full behind its option. Buyers have no liquidation price; the most they can lose is what they paid. It runs on Robinhood Chain testnet with test tokens. It has no audit yet. Vexi publishes no APR and promises no return. ## Docs - [Vexi in full, for AI assistants](https://vexi-protocol.ai/llms-full.txt): what Vexi is and is not, how a vault and a buyer's worst case work, and the current status, in one plain-text file - [How it works](https://vexi-protocol.ai/how-it-works/): the contract, where quotes come from, pricing, trading, settlement, fees and risks (an interactive page; it renders in the browser) ## App - [Home](https://vexi-protocol.ai/): leverage with no liquidation price, one pot that quotes a whole board, and the roadmap - [Trade](https://vexi-protocol.ai/app/): buy a call or a put on Robinhood Chain testnet - [Vaults](https://vexi-protocol.ai/vaults/): deposit into a vault, or open one on a listed market - [Pools](https://vexi-protocol.ai/pools/): the Uniswap v4 pools where vaults keep their unsold capital - [Leaderboard](https://vexi-protocol.ai/leaderboard/): Season 0 on testnet ## Brand and press - [Media kit](https://vexi-protocol.ai/media-kit/): the logo, colours and images, and the whole kit as one zip - [Approved copy](https://vexi-protocol.ai/media-kit/copy.md): the name, boilerplates, approved lines, lines never to use, and a FAQ for partners - [Brand rules](https://vexi-protocol.ai/media-kit/brand.md): the mark, the lockup, colour, type, pictures and co-branding ## Optional - [Vexi on X](https://x.com/vexiprotocol): @vexiprotocol - [Contact for partners and press](mailto:eric.fang@vexi-protocol.ai)