Gasless Payments , How Monipay Sponsors Gas

Gasless payments

Monipay sponsors gas fees across all supported chains, allowing users to send payments without holding native gas tokens (ETH, BNB, SOL).

Base & BSC

On Base and BSC, Monipay uses ERC-2771 meta-transactions:

1. User signs an EIP-712 typed data message.
2. The message is sent to a Monipay relayer.
3. The relayer wraps the message in a transaction and pays the gas.
4. The on-chain MonipayRouter contract verifies the signature and executes the transfer.
5. The 1% platform fee is split atomically within the same transaction.

Tempo

Tempo features native fee sponsorship (EIP-2718 type 0x76):

• The transaction payload includes a feePayer field.
• The sponsor (Monipay) signs the transaction as the fee payer.
• No relayer or wrapper contract is required for basic transfers.

Solana

On Solana, we use a feePayer relay:

• The transaction is constructed with a Monipay-controlled account as the feePayer.
• The user signs the instructions.
• The relayer adds the fee payer's signature and submits the transaction to the cluster.

Builder attribution

On Base, Monipay appends an ERC-8021 builder code (bc_qt9yxo1d) to the transaction data for on-chain attribution.

Read next

• Supported Chains
• How Monipay Works