> For the complete documentation index, see [llms.txt](https://contracts.synapseprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://contracts.synapseprotocol.com/elin/contracts-upgradeable/token.md).

# token

- [ERC20](https://contracts.synapseprotocol.com/elin/contracts-upgradeable/token/erc20.md)
- [ERC20BurnableUpgradeable](https://contracts.synapseprotocol.com/elin/contracts-upgradeable/token/erc20/erc20burnableupgradeable.md)
- [ERC20Upgradeable](https://contracts.synapseprotocol.com/elin/contracts-upgradeable/token/erc20/erc20upgradeable.md)
- [IERC20Upgradeable](https://contracts.synapseprotocol.com/elin/contracts-upgradeable/token/erc20/ierc20upgradeable.md)