What it means
Layer 1 networks process transactions and provide the foundation for assets, apps and smart contracts.
Why it matters
Fees, speed and security vary between Layer 1 networks.
Common mistake
Do not treat Layer 1 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 Layer 2 or return to the crypto glossary.
How to use this term
Use Layer 1 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.