> 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/messaging/framework.md).

# framework

- [SynMessagingReceiver](https://contracts.synapseprotocol.com/messaging/framework/synmessagingreceiver.md)
- [SynMessagingReceiverUpgradeable](https://contracts.synapseprotocol.com/messaging/framework/synmessagingreceiverupgradeable.md)