# Quai

**Published by:** [Tushar](https://paragraph.com/@tushar-2/)
**Published on:** 2023-03-19
**URL:** https://paragraph.com/@tushar-2/quai

## Content

Quai's Iron Age implementation of the EVM introduces two new opcodes for developers to utilize: ISADDRINTERNAL - Checks if the provided address is within the smart contract's context ETX - Emits an external transaction from the smart contract

## Publication Information

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