fee-delegation

What problem does it solve?

Fee delegation removes the friction of users needing native token balances to pay gas by enabling a third party to pay transaction fees at the protocol level, enabling seamless gasless UX and sponsored transactions.

Core Features & Use Cases

• Protocol-level sponsorship: Two-signature transactions where the sender authorizes the action and a fee payer authorizes gas payment, avoiding bundlers and paymasters.
• Full and partial delegation: Support for 100% fee coverage or a feeRatio parameter for partial coverage (e.g., feeRatio: 70 means payer covers 70%).
• Use Cases: Onboard users with zero KAIA balance, implement dApp-sponsored transactions, and provide enterprise gas payment services.

Quick Start

Use fee-delegation to create a fee-delegated transaction, have the sender sign it, send it to the fee payer to obtain their signature, and submit the combined transaction so gas is deducted from the fee payer's account.