> For the complete documentation index, see [llms.txt](https://docs.epsilon.exchange/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.epsilon.exchange/getting-started/accounts-and-wallets.md). # Accounts & wallets Epsilon uses [Privy](https://privy.io) for authentication and wallet infrastructure. This gives you a familiar sign-up experience with the safety of self-custody: every wallet involved is controlled by you and only you. ## Ways to use Epsilon ### Guest mode You can start trading without creating an account. A guest session provisions a temporary trading wallet so you can try the full experience with zero commitment. When you are ready, upgrade the guest session to a full account and everything carries over. ### Sign in with email Create an account with just an email address. Epsilon automatically provisions an **embedded trading account** for you: a self-custodial wallet secured by Privy that lives in your browser session. No seed phrase to write down, nothing to install. ### Connect an external wallet Prefer your own wallet? Connect MetaMask, Rabby, or any mobile wallet via WalletConnect and trade directly from it, just like a classic DEX. ## The trading account Signing in creates an embedded wallet that acts as your **trading account**. It unlocks the features an external wallet cannot offer: * **One-click trading.** The trading account can sign transactions silently in the background, so you do not get a wallet popup for every swap or order. Toggle this on or off at any time in the account menu. * **Instant order placement.** Advanced orders are signed without leaving the page. * **A dedicated balance.** Keep your long-term holdings in your main wallet and fund the trading account with just what you actively trade. See [Funding your trading account](/products/funding.md). The trading account is fully self-custodial: keys are generated and held on your device, and Epsilon cannot move your funds. ## Linking multiple wallets You can link several wallets to one account: your embedded trading account plus any number of external wallets. The [Portfolio](/products/portfolio.md) aggregates balances, PnL, and history across all of them, with filters to view any single wallet. ## Switching and disconnecting * The active wallet is shown in the header; switch between linked wallets from the account menu. * Signing out ends the session. Epsilon retains no access to any of your wallets afterwards. ## Staying safe * Always verify you are on the official Epsilon domain before signing in. * Epsilon will never ask for your seed phrase or private keys. * Review any transaction your external wallet asks you to sign. One-click trading only ever applies to the embedded trading account. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.epsilon.exchange/getting-started/accounts-and-wallets.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.