DN FIELD GUIDE · INITIAL RELEASE
Token approval
An allowance that permits a spender to transfer tokens within a specified limit.
DeFi · Reviewed 2026-10-12
See it in a workflow
A swap contract receives permission to spend a token amount.
The failure mode
An unlimited allowance can outlive the intended transaction.
Illustrative scenario, not a measured execution test.
Connect the concepts
Primary documentation
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