> For the complete documentation index, see [llms.txt](https://docs.axonum.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.axonum.io/chain.md).

# Axonum Testnet

- [Differences From Ethereum](https://docs.axonum.io/chain/differences.md): Axonum is designed to be EVM equivalent and introduces as few changes as possible to the Ethereum protocol. However, there are some minor differences between the behavior of Ethereum and Axonum.
- [Networks and RPC Endpoints](https://docs.axonum.io/chain/networks.md): The public RPC URLs provided below are rate limited and do not support websocket connections.
- [Contract Addresses](https://docs.axonum.io/chain/addresses.md): This reference guide lists all the contract addresses for Testnet.
- [AI Precompiles](https://docs.axonum.io/chain/precompiles.md): A precompile is a special contract that is compiled into the EVM and is executed by the EVM itself. Precompiles are used to provide additional  functionality to developers building on Axonum.