How to find a token's fee#

A token fee is defined by the token contract, not by CenturionDEX. Before you trade an unfamiliar CRC-20 token, review its verified contract information, compare quoted and received amounts, and check for warnings about transfer restrictions.

What you are looking for#

Three different costs are often confused:

Centurion Protocol swap fee: 0.30% for a v2 pool, or the selected 0.01%, 0.05%, 0.30%, or 1.00% tier for a v3 pool.
Network cost: paid in CTN for the Newtons used to execute the transaction.
Token fee: custom logic that may deduct, redirect, burn, or otherwise change tokens during a transfer.

A token can also impose allowlists, maximum transfer amounts, cooldowns, or sell restrictions without calling the behavior a fee. The contract's actual behavior matters more than its marketing description.

Step-by-step#

Copy the token's contract address from a source you already trust.
Confirm that the address is on the Centurion blockchain, not another network with a similar token name.
Open the token details in CenturionDEX and review any risk or transfer-behavior notices shown by the interface.
Use the current official Centurion explorer or verified contract viewer reached through official Centurion channels.
Review verified source code, if available, for transfer deductions, exemptions, blacklists, trading switches, or owner-controlled limits.
Compare a small test transfer's sent amount with the recipient's actual balance increase. Remember that the test still costs CTN and may itself trigger token logic.
Before a swap, read the wallet simulation and the CenturionDEX minimum-received amount. Cancel if the result differs materially from the quote.

How to interpret the result#

A balance difference does not always prove a simple transfer fee. Rebasing or reflection logic can change balances independently of the transfer amount. A proxy contract can also change behavior after an upgrade. If you cannot explain the result from verified information, treat the token as high risk.

Token fees can affect swaps in both directions. They can also make liquidity deposits, withdrawals, or routing fail when a pool expects the transferred amount to match the requested amount. CenturionDEX cannot override token-contract rules.

Common issues#

No verified source is available: you cannot reliably inspect all transfer rules. Consider avoiding the token.
A small buy works but a sell fails: the contract may contain asymmetric or address-specific restrictions.
The quote looks normal but receipt is lower: token logic may execute only when the transfer occurs.
The fee changes: some contracts allow an administrator to alter parameters.

Stay safe#

Do not connect your wallet to a token website merely to “check fees.” Never sign an approval or transaction from an unsolicited scanner link. Verify the contract address and review every wallet request.