Why an aggregator splits a swap across pools
Work through why dividing one token swap across independent pools can improve output and when a split is unnecessary.
The reference
All swap guides
Browse 484 guides to DEX aggregation, BNB Chain, swap execution and integration.
Why exact-output routing works backward through a path
Trace a fixed output requirement backward through intermediate markets to determine the input a multi-hop route needs.
Why quotes on different chains are not equivalent offers
Explain why the same ticker and amount on different networks do not automatically represent interchangeable swap offers.
Why reversing a swap can select a different route
Explain why reversing a token pair is a fresh routing problem and why finite-size buy and sell routes need not mirror each other.
Why split routers compare marginal output
Understand why a split optimizer compares the extra output from the next unit rather than ranking routes by their average rate alone.
Why split routes cannot treat a shared pool as independent
See why two branches that share a liquidity pool cannot both use quotes calculated against the same untouched reserves.
Why the best route changes with trade size
See why the same pair can use a direct pool for one amount and a split or multi-hop route for another.
Why the final output matters more than one favorable hop
Follow token units through a multi-hop path and see why an attractive intermediate rate does not determine the final receipt.
Why two aggregators may return the same route
Explain why independent aggregators can select identical pools and why shared routes do not by themselves reveal commercial relationships.
BEP-2 and BEP-20 after BNB Chain Fusion
Understand why a historical BEP-2 balance cannot enter a BSC DEX directly and locate the current recovery path after the hosted tool sunset.
BEP-20 decimals and misleading raw balances
Convert raw BEP-20 amounts into displayed quantities and avoid assuming that the same ticker uses the same decimals across networks.
BNB mainnet versus testnet balances
Distinguish BSC mainnet assets from testnet tokens, and understand what a practice swap proves about a later real transaction.
BNB Smart Chain network identity for swaps
Identify BNB Smart Chain by its chain ID and execution network, and separate it from the wider BNB Chain ecosystem and opBNB.
BSC and opBNB: same BNB symbol, different balances
Compare BSC and opBNB by chain ID and balance location, so a BNB ticker does not conceal the need for a supported cross-network transfer.
BSC transaction inclusion and finality for swap users
Read BSC swap inclusion, execution status and finality as different states, and distinguish them from an exchange’s deposit-credit policy.
Budget native BNB for a sequence of swaps
Plan a native BNB reserve from the actions a BSC account still needs to perform, using current estimates instead of a fixed fee rule.
Check a deposit network before sending BSC swap output
Check whether a receiving exchange or application accepts the exact BSC output before swapping into an asset intended for deposit.
Check a wallet's BSC network configuration
Use official BSC mainnet values to check a wallet network entry before reviewing a token-swap quote.
Choose the withdrawal network before a BSC swap
Fund a BSC swap by matching the exchange withdrawal asset and network to the wallet balance the trade will actually spend.
Moving BSC tokens between your own wallets before a swap
Budget a BSC token move between two accounts by separating the sending account’s transfer fee from the receiving account’s later swap fees.
One address, different BSC and Ethereum balances
Explain why a familiar 0x account can hold separate balances on BSC and Ethereum, with an important exception for contract accounts.
Staked BNB is not a spendable swap balance
Separate native BNB available for a swap from delegated stake, pending undelegation and third-party liquid staking tokens.
What BEP-20 tells you about a token
Understand what the BEP-20 interface supplies to wallets and DEXs, and what it says nothing about: backing, liquidity or permission to transfer.
What BSC paymasters change for token swaps
Understand BSC transaction sponsorship and wallet token-paid fees without assuming every swap can execute from a zero-BNB account.
Why BEP-20 swaps still need native BNB
Separate BSC transaction gas from CAKE, TWT, USDT and WBNB balances, including the limited role of wallet sponsorship.
ankrBNB swaps and the redemption exchange rate
Compare ankrBNB trading, standard unstaking and capacity-limited flash unstaking without assuming that share units equal native BNB.
Aster USDF and asUSDF: different units in a swap
Distinguish Aster USDF from asUSDF and Pendle position tokens before comparing stablecoin swap amounts or redemption values.
BNB price in USDT versus dollars in a bank
Separate a BNB-to-stablecoin quote, a displayed dollar valuation and a completed fiat withdrawal to a bank account.
BNB to USDC: identify the BSC asset first
Check the precise BSC USDC representation before swapping BNB, with Circle issuance evidence and downstream deposit compatibility in view.
BNB to USDT: swapping on BNB Smart Chain
Swap BNB and USDT on BNB Smart Chain with the correct token contract, a native BNB gas reserve, clear approvals and a verified final balance.
