# Protocol Messages ### Cosmos SDK Messages Since the Oraichain blockchain is built from the Cosmos network, it also supports all message types of Cosmos SDK so that they can be delivered to all nodes for execution and querying. For simplicity, all message types follow the same protocol, which are described on the [Cosmos SDK documentation](https://docs.cosmos.network/v0.45/building-modules/messages-and-queries.html) ### CosmWasm Messages Oraichain uses `wasmd` module to leverage the power of smart contracts to build decentralized applications. The CosmWasm team describes clearly these messages in [their documentation](https://docs.cosmwasm.com/docs/smart-contracts/contract-semantics) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.orai.io/oraichain/system-overview/protocol-messages.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.