How it is used
Public keys are mathematically related to private keys. Wallet addresses are often derived from public keys, depending on the network.
Is it secret?
A public key is not secret like a private key, but users should still avoid sharing more wallet information than necessary.
Common mistake
Do not treat Public key in crypto as a universal rule. Exchanges, wallets and card apps may use the same term differently, especially around limits, fees, networks and account restrictions.
User action
Before relying on this term, check the provider's official help page, fee schedule or product terms. If funds are involved, test with a small amount first and keep a record of the transaction or setting.
Related pages
Read about wallet addresses and private keys.
How to use this term
Use Public key as a practical checkpoint when comparing exchanges, wallets, cards or on-chain tools.
What to check
Check how the term appears in fees, limits, account rules, wallet flows and risk notes before making a platform decision.