L2Pass Swap Glossary: RFQ, Solvers, USDT0, CCTP and More

These are the terms you will meet in L2Pass Swap and in these docs, in plain words. Each one links to the page that explains it in full.

Routes and providers

A route is one provider’s way to fill your swap, and L2Pass shows all of them side by side.

Term	What it means
Route	One way to fill your swap, run by one provider. L2Pass shows every route that can fill your swap, sorted by what you receive. How routes are compared
Route card	The box in the swap interface that shows a route’s expected output, minimum received, estimated time and fees.
NEAR Intents	A network where solvers and market makers compete to fill cross-chain swaps. It runs the L2Pass RFQ and L2Pass Private routes.
L2Pass RFQ	The standard route on NEAR Intents. RFQ stands for request for quote: your swap is offered to solvers, and the best quote fills it. What is L2Pass RFQ
L2Pass Private	The same route as L2Pass RFQ, executed in a confidential environment that limits what public blockchains show. Private swaps
Solver	A market maker that fills swaps on NEAR Intents with its own liquidity.
USDT0	The version of USDT that moves natively between chains over LayerZero, with no wrapped token. USDT networks explained
Circle CCTP	Circle’s Cross-Chain Transfer Protocol. It burns USDC on the source chain and mints native USDC on the destination, in Standard or Fast mode. Bridge USDC with CCTP
Aggregator	A service that searches many bridges and exchanges for one route, such as LI.FI or the OKX DEX aggregator.

You pay either by signing in your wallet or by sending to a deposit address.

Term	What it means
Wallet route	A route where you sign a transaction in your own wallet, such as CCTP, USDT0, LI.FI or Relay.
Deposit address	A one-time address created for your quote on the L2Pass RFQ and L2Pass Private routes. You can pay it from any wallet or exchange, with no wallet connection. Deposit-address swaps
Refund address	A wallet you control on the source chain. If a deposit-address swap cannot complete, your deposit goes back there. Failed swaps and refunds
Non-custodial	L2Pass never holds your tokens or private keys. Providers execute each swap on their own contracts. Is L2Pass safe?
Partial fill	A swap that completes only in part. L2Pass does not use them: a swap completes in full or does not execute.

The amount shown is after all fees except source gas and any bridge message fee.

Term	What it means
Expected output	The amount you should receive under current market conditions, after fees.
Minimum received	The least you will receive. If the market moves past it, the swap does not execute.
Slippage tolerance	How far below the expected output you accept. It sets the minimum received. The default is 0.05%. Slippage explained
Fixed output	A route that delivers an exact amount, such as USDT0. Slippage does not apply.
L2Pass fee	The only fee L2Pass charges: 0% on stablecoin swaps, up to 0.2% on other assets, up to 0.3% on private swaps. Fees explained
Provider fee	The fee the routing provider charges, such as NEAR Intents, LI.FI or Relay. It is included in the amount you receive.
Network fee	The fee the destination blockchain charges. It is included in the amount you receive.
Source gas	The fee the source blockchain charges to send your transaction, paid from your wallet in its native token (ETH, TRX, BNB and so on).
Bridge message fee	A fee some bridges charge to send a cross-chain message, such as USDT0 over LayerZero. It is paid in the source chain’s native token.