Product documentation you can check against the app.

How quotes, fees, token contracts and the cross-chain pilot work.

Reviewed October 14, 2026 against the application code and recorded route evidence. Availability still depends on the selected flow, current deployment and live quote.

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01Architecture

One interface, separate route flows

Latin Link is a non-custodial interface. You connect your wallet, review a quote and transaction, then approve and sign from your wallet. A quote is an estimate and does not guarantee execution or the best price across the market.

  • For eligible same-chain swaps, the server requests routing data from OpenOcean. TRON quotes use a separate SunSwap flow.
  • Cross-chain quotes and transfer status use LI.FI, subject to an exact token, network direction and route allowlist.
  • Latin Link does not accept deposits into a platform balance or hold your wallet keys. Some routes depend on third-party providers and on-chain contracts with their own risks.
02Fees

The quote shows more than the platform fee

Current configured Latin Link swap fees are 0.075% for stablecoin-to-stablecoin pairs and 0.0999% for blue-chip or volatile pairs. The cross-chain pilot fee is 0.15%. Rates can change with product configuration; review the current quote before signing.

  • Route or pool costs, network gas, price impact and slippage are separate parts of the total result.
  • A route with a lower displayed fee may still produce less after gas, liquidity and other costs.
  • The quote and the fees page provide the current estimate; a previous quote is not a price guarantee.
03Networks and routes

A network list is not a promise for every pair

The cross-chain pilot evaluates stablecoin routes across Ethereum, Optimism, Polygon, Arbitrum and Base. The available token contracts and directions are narrower than that network list.

  • Only exact, approved token contracts and directions can be quoted for execution. A route in one direction does not enable its reverse.
  • Availability is checked by the application and can depend on deployment controls, provider connectivity and a fresh quote.
  • Historical quote evidence is not proof of a completed transfer. A local quote is not proof of production availability; check the live application before relying on a route.
04Contracts and providers

Verify token identity and the transaction target

A token symbol alone does not identify an asset. Latin Link uses chain IDs and exact token contract addresses when validating pilot pairs; bridged or wrapped versions can have a different contract and risk profile.

  • Check the network and token contract in the market catalogue, then review the spender and transaction target shown by your wallet.
  • OpenOcean supplies eligible same-chain routing; LI.FI supplies cross-chain quote and status data for allowlisted routes.
  • The provider names describe technical integrations. They do not establish a commercial partnership or mean every provider route is enabled in Latin Link.
05Security review

What the Metlabs review covered

Metlabs performed a static analysis of appWallet source code and dependencies on July 6, 2026. Its remediation-closure report, issued in September 2026, records 17 findings as corrected within the reviewed scope.

  • The review did not cover the deployed runtime, infrastructure, third-party on-chain contracts or dynamic penetration testing.
  • A code review is not a guarantee that an application, token, network or transaction is risk-free.
  • Wallet-based operations still require you to verify the site, network, asset contract, permissions and transaction details before signing.
06Pilot limits

Cross-chain remains a controlled pilot

The current code caps each cross-chain operation at USD 500 and blocks quotes whose estimated net-value loss exceeds 5%. A deployment may set a lower cap or disable the flow. These checks reduce exposure; they do not guarantee settlement or eliminate risk.

  • The server validates the exact token contracts, route, transaction target and approval spender against its allowlist. A provider connection or quote alone does not approve a route.
  • Routes, estimates and provider capabilities can change. The live quote and wallet request are the source to review for each operation.
  • Latin Link does not currently publish a supported public developer API. The app has first-party server endpoints, but they are not a documented or stable third-party integration contract.

Review a current route before you sign.

Open the product for a live quote, or use the FAQ for quick answers.