What Feather Fi processes
Feather Fi does not require an account. For swaps, the service processes the public wallet address, chain, token pair, amount, quoted minimum output, route, disclosed fees, allowance target, transaction request, and quote timestamps. After submission, Neon may record transaction lineage, confirmation or revert status, block identity and time, gas data, bounded receipt evidence, and verified token results.
For direct liquidity, the service processes the public wallet address, chain, fixed WETH/USDG pool and position identifiers, requested and bounded token amounts, liquidity and range, current allowance state, configuration and preview digests, deadlines, estimated gas, exact transaction targets and calldata, and the ordered approval, position-action, and cleanup steps. Before a transaction prompt, the service verifies a wallet-signed intent/step/nonce reservation and Neon stores the reserved public wallet and nonce; the raw reservation signature is not stored. After submission, Neon stores submitted and canonical hashes, sender and nonce, replacement or cancellation lineage, receipt and relevant logs, derived position result, and provisional, finalized, or orphaned finality evidence.
Infrastructure providers may process IP address, browser and device information, timestamps, request paths, error details, and security signals in ordinary server logs. Feather Fi disables Reown product analytics in its wallet configuration and does not add IP history, advertising identifiers, or browser fingerprints to its swap or liquidity-operation records.
Prepared liquidity intents and browser storage
Liquidity preparation is unauthenticated and does not prove that the requester controls the named wallet. Wallet control is required later, through a domain-separated signature, before Feather Fi reserves a transaction nonce. A prepared intent can reveal intended amounts and transaction steps before anything is public onchain, so Feather Fi treats the full prepared plan as private offchain service data rather than public activity. The server returns a random capability to the initiating browser and stores only its one-way hash in Neon. The capability cannot sign a transaction or move assets, but it authorizes access to recovery records and should not be shared.
The browser keeps one local pending-operation journal for recovery. It can contain the capability, prepared plan, amounts and calldata, reserved nonce, step status, submitted and replacement hashes, and observed block hashes; it does not persist the nonce-reservation signature. A finalized approval-only stage retains the full journal and capability until a fresh mint plan or authenticated cleanup atomically replaces it, preserving cleanup access if the release pauses or the tab closes. After a completed handoff, the prior local plan is replaced by a minimal pointer containing only wallet, intent, action, time, and aggregate step counts. Pointers are limited to ten per wallet, expire after 30 days, and can be deleted from the liquidity panel; pending recovery JSON can be exported and contains a private capability. Anyone with access to the browser profile—or script execution on the Feather Fi origin—may be able to read local data. Clearing it can remove the browser's recovery copy but does not erase Neon or blockchain records.
Public chain and wallet-address history
Wallet addresses, approvals, transaction calldata, token transfers, position NFTs, receipts, logs, and final chain state become public when broadcast. Robinhood Chain is authoritative for transaction inclusion, ownership, and position state. The beta may return bounded wallet-scoped operation summaries when queried by a public wallet address without an account login; those summaries are not proof of wallet control and do not expose the browser capability. Do not use a wallet address or prepared intent for information that must remain secret.
Why data is used
Data is used to connect wallets, prepare and validate swap or liquidity transactions, recover submitted hashes without blind resubmission, verify receipts and finality, show wallet-scoped history, prevent abuse, diagnose failures, reconcile fees, monitor service health, support users, and comply with applicable law. Feather Fi does not sell personal information or use wallet activity for advertising.
Providers and disclosures
Vercel hosts the website and server routes. Neon hosts Feather Fi's managed Postgres database. Reown provides WalletConnect/AppKit connectivity. 0x supplies swap-routing infrastructure. Uniswap contracts, Permit2, Robinhood Chain RPC providers, and explorers process or expose public blockchain activity. These providers operate under their own terms and privacy notices and may process data in multiple countries.
Storage and retention
Browser and CDN responses use no-store, but that header does not prevent the intentional Neon and local-journal storage described above. Offchain records are retained while reasonably needed for pending-transaction recovery, wallet history, security, accounting, support, disputes, abuse prevention, and legal obligations. Unsubmitted or completed records may be deleted or de-identified earlier when they are no longer needed; security holds, disputes, or law may require longer retention. Feather Fi cannot promise deletion from provider backups on demand, and it cannot alter public blockchain history.
Access, choices, and rights
You can use a separate public wallet, disconnect it, clear Feather Fi site storage, or stop using the service. Depending on location, you may have rights to request access, correction, deletion, restriction, portability, or objection regarding offchain personal data, and to appeal or complain to a regulator. Feather Fi may need reasonable proof connecting you to the wallet or record, and may deny or limit a request where identity cannot be verified or retention is required for security, legal claims, accounting, or law. Never send a seed phrase or private key. Public blockchain records generally cannot be changed or deleted by Feather Fi.
Security and children
Feather Fi applies technical safeguards but no internet or blockchain service is perfectly secure. Never send a seed phrase or private key. The service is not directed to children under 18.
Contact and updates
Privacy requests may be sent to builtbyecho@agentmail.to. We may update this notice as the beta changes; the effective date will be revised here.