What it means
Transactions can wait in the mempool before being included in a block.
Why it matters
High demand can increase waiting times and fees on some networks.
Common mistake
Do not treat Mempool 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
Continue with Gas fee or return to the crypto glossary.
How to use this term
Use Mempool 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.