Dapps
On-Chain Interaction
An action or transaction that directly engages with a smart contract and is recorded on the blockchain.
Last Updated
2026-03-29
Related Concepts
What is On-Chain Interaction?
An on-chain interaction is any user action that causes a permanent state change on a blockchain a transaction broadcast to the network, verified by nodes, and recorded in a block forever.
How does On-Chain Interaction work?
- A user initiates an action in a DApp (swap, mint, stake).
- Their wallet prepares and signs the transaction with their private key.
- The signed transaction enters the mempool.
- A validator processes it, executes the smart contract logic, and updates state.
- The user pays a gas fee for the computation.
Why does On-Chain Interaction matter?
Every interaction is transparent, immutable, and verifiable by anyone the foundation of trustless Web3 applications.
Key features of On-Chain Interaction
- Permanent and immutable record
- Cryptographically secured by private key signature
- Requires gas fee payment
- Verifiable by any network participant
Examples of On-Chain Interaction
Approving a contract to spend your USDC before a swap. Staking tokens in a governance pool.
Claiming an airdrop. All trackable in seconds on Etherscan.