Multi-Chain
Quick Answer
Multi-chain means supporting multiple blockchain networks simultaneously, allowing customers to pay from whichever chain their funds are on without bridging first.
Full Definition
Multi-chain refers to the support for multiple blockchain networks within a single application or service. A multi-chain payment gateway accepts payments from various networks simultaneously. Multi-chain support maximises customer reach — customers can pay from whichever chain their funds are on without needing to bridge assets first. SpacePay supports payments across five EVM networks: Ethereum, Polygon, BNB Chain, Base, and Avalanche.
Related Terms
Mainnet
Mainnet is the production blockchain where real transactions occur, as opposed to testnets used for development. Going live on mainnet means processing real customer payments.
Mempool
The mempool is a holding area for unconfirmed transactions waiting to be included in the next block. Payment providers monitor it to set gas prices and estimate confirmation times.
Merchant
In crypto payments, a merchant is any business accepting cryptocurrency for goods or services, integrating via API, SDK, or hosted checkout to receive and settle payments.
Multi-Signature (Multisig)
Multi-signature requires multiple private keys to authorise a transaction (e.g., 2-of-3 signers), used by businesses to protect treasury and settlement wallets.