> For the complete documentation index, see [llms.txt](https://docs.hoodprivate.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hoodprivate.com/resources/faq.md). # FAQ *** ## General **What is HoodPrivate?** HoodPrivate is a privacy-first crypto neobank built on Robinhood Chain, Robinhood's AI-native Ethereum Layer 2. It's a non-custodial account for USDG and ETH where transfer amounts are encrypted by default, settlement lands in the next \~100ms block, and both people and AI agents hold accounts side by side. Think of it as the private financial layer of the agent economy. **Do I need to know anything about blockchain to use HoodPrivate?** No. You sign up with an email and a passkey, the same way you'd set up Face ID for any app. Everything underneath, keys, encryption, settlement, is handled for you, invisibly and automatically. **What currency does HoodPrivate use?** USDG (Paxos' Global Dollar), natively issued on Robinhood Chain, with bridged USDC also supported. ETH is held automatically as a gas reserve so you never have to think about network fees directly. **Is HoodPrivate anonymous?** No, and it's deliberately not designed to be. Your identity is verified at account creation, and your address is public on-chain. What's private is the amount moving through your account: confidentiality, not anonymity. See [Regulatory Framework](/compliance/regulatory-framework.md) for why this distinction matters. *** ## For individuals **How does HoodPrivate keep my transaction amounts private?** Transfers use HoodPrivate's confidential token contracts, an encrypted-balance ERC-20 that stores amounts as ElGamal ciphertexts, with zero-knowledge proofs generated on your own device and checked by an on-chain verifier contract. Only you and the recipient can decrypt the amount. See [Confidential Transfers Explained](/privacy-and-confidential-transfers/confidential-transfers.md). **Can anyone see how much money I have?** No. Your balance lives on-chain as ciphertext, decryptable only with your key. Someone can see that your address exists and holds a token balance, but never the amount in it. **What if I need to prove a payment to someone, like a landlord or an auditor?** Generate a selective disclosure proof for that specific transaction. It reveals exactly what you choose to share, to exactly who you choose to share it with, and nothing more. See [Selective Disclosure & Audit Export](/privacy-and-confidential-transfers/selective-disclosure.md). **What happens if I lose my phone?** If your passkey is synced across devices (iCloud Keychain, Google Password Manager), you can recover access immediately on another device. If you exported your key ahead of time, you can restore access using that. See [Key Management & Custody](/privacy-and-confidential-transfers/key-management.md). **Is my transaction history stored anywhere in plaintext?** Not by HoodPrivate. Your decrypted history is rendered locally on your device using your own key. HoodPrivate's servers only ever handle ciphertext and public account metadata. By design, there is nothing to leak. *** ## For developers and agent builders **How do agent accounts actually work?** Every agent gets its own ERC-4337 smart account on Robinhood Chain and its own HoodPrivate Agent ID, namespaced under a parent account. It transacts under a spend policy the parent defines: daily limits, allowed recipients, time windows, and an optional human approval threshold. See [Agent Accounts Overview](/agents-and-automation/agent-accounts-overview.md). **Can an agent spend beyond what I've authorized?** No. Spend policy checks happen before a transaction is ever signed, not as a post-hoc review. A policy-violating transaction is never even constructed, so there is nothing to catch after the fact. See [Spend Policies](/agents-and-automation/spend-policies.md). **Does HoodPrivate support x402?** Yes, natively, for every agent account. See [x402 Payments](/agents-and-automation/x402-payments.md). **How do I get notified when an agent transaction happens?** Subscribe to webhook events for your account. See [Webhooks & Events](/agents-and-automation/webhooks-and-events.md) and the [Webhooks API](/api-reference/webhooks.md). **Can I read my agent's transaction amounts through the API?** Only by decrypting them client-side with your account's key. HoodPrivate's API never returns plaintext amounts, because HoodPrivate's servers don't hold the decryption key either. The privacy guarantee extends all the way through the API. *** ## Compliance **Why does HoodPrivate require KYC if it's a privacy product?** Because confidentiality and anonymity aren't the same thing. HoodPrivate hides transaction amounts, not identities. Every account is tied to a verified person or entity, and that is precisely what allows the product to operate under the GENIUS Act framework and cooperate with lawful legal process when required. Privacy that lasts is privacy that complies. **What happens for large or cross-border transfers?** Transfers above regulatory thresholds are subject to Travel Rule requirements, including counterparty screening. See [KYC & Travel Rule](/compliance/kyc-and-travel-rule.md). **Is the HoodPrivate protocol open source?** The confidential transfer logic, HoodPrivate's confidential token contracts and their on-chain verifier, is open source and auditable on Robinhood Chain. HoodPrivate's application layer, meaning the app, backend, and indexer, is not open source during beta. *** ## Fees **What does HoodPrivate charge for transfers?** Nothing, during beta. You pay only the underlying Robinhood Chain gas fee, typically a fraction of a cent at rollup prices, and even that is covered automatically from your ETH reserve. **Are there fees for using the API?** Not during beta. A metered API tier for high-volume agent usage is planned as part of HoodPrivate's post-beta revenue model. --- # 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.hoodprivate.com/resources/faq.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.