Aave (AAVE)
Aave is a decentralized, non-custodial liquidity protocol that lets users supply supported digital assets, borrow against collateral, and interact with on-chain lending…
Glossary terms starting with A
Numbers and symbols are grouped under #. Letter matching ignores case and uses the first displayed title character.
Abandoned Cart
An abandoned cart is a shopping cart that contains selected items but does not become a completed order within the merchant’s defined…
ABI Decoding
ABI Decoding is the interpretation of ABI-encoded bytes as typed function outputs, event fields, errors, or call data. It is used to…
ABI Encoding
ABI Encoding is the conversion of typed smart contract function arguments or values into the byte layout defined by an application binary…
Absolute Finality
Absolute finality is the strongest claim that an accepted blockchain decision cannot be reversed through the protocol’s normal operation. It is usually…
Accept Header
Accept Header is an HTTP request header that tells a server which response media types the client can understand and may rank…
Acceptance for Settlement
Acceptance for settlement is the point at which a payment system admits a valid instruction into the process that will discharge the…
Accepted Cryptocurrency
An accepted cryptocurrency is a digital asset that a merchant, payment service, wallet, or invoice has explicitly approved for payment. Acceptance is…
Accepted Currencies
Accepted currencies are the cryptocurrencies a merchant has chosen to make available to payers for a specific payment service. They are a…
Accepted Payment Network
An accepted payment network is a blockchain or other payment rail that a merchant or payment service permits for a particular payment…
Accepted Stablecoin
An accepted stablecoin is a stable-value token that a merchant, platform, or invoice explicitly supports for payment. Acceptance should identify the issuer,…
Access Control List (ACL)
An Access Control List (ACL) is a set of rules attached to a resource or enforcement point that specifies which users, roles,…
Access Control Vulnerability
An access control vulnerability lets a user perform actions or reach data that the system should deny to that identity. Access Control…
Access Token
Access Token is a credential presented by a client to access protected resources with the permissions granted by an authorization system. It…
Accidental Crypto Payment
An accidental crypto payment is an unintended cryptocurrency transfer caused by a mistaken address, asset, network, amount, duplicate action, misunderstood invoice, compromised…
Account
An account is a blockchain-recognized state object associated with an address, identifier, key, program, or protocol role. Depending on the network, it…
Account Abstraction
Account abstraction is a blockchain design approach that makes user accounts programmable rather than restricting them to one fixed private-key transaction model.…
Account Abstraction Payment
An account abstraction payment is a blockchain payment initiated through a programmable smart account rather than a conventional single-key externally owned account.…
Account Abstraction Risk
Account Abstraction Risk is a measurable uncertainty or exposure that arises from programmable wallet logic, bundlers, paymasters, plugins, and dependencies that expand…
Account Abstraction Wallet
An account abstraction wallet is a smart-contract-based wallet whose authorization and transaction rules can be programmed instead of being limited to one…
Account Address
An account address is the blockchain identifier used to locate an account, receive assets, or reference an account in a transaction. Its…
Account Authentication
Account authentication verifies that a person or system attempting access legitimately controls the credentials associated with an account. Account authentication is the…
Account Authority
Account authority is the protocol-defined permission to approve actions for a blockchain account, such as signing transactions, changing configuration, upgrading code, or…
Account Balance Endpoint
An account balance endpoint is an API operation that returns available, current, pending, reserved, or ledger balances for a defined account. Production…