# rmcp-macros
[](https://crates.io/crates/rmcp-macros)
[](https://docs.rs/rmcp-macros)
`rmcp-macros` is a procedural macro library for the Rust Model Context Protocol (RMCP) SDK, providing macros that facilitate the development of RMCP applications.
## Available Macros
| Macro | Description |
|-------|-------------|
| [`#[tool]`][tool] | Mark a function as an MCP tool handler |
| [`#[tool_router]`][tool_router] | Generate a tool router from an impl block |
| [`#[tool_handler]`][tool_handler] | Generate `call_tool` and `list_tools` handler methods |
| [`#[prompt]`][prompt] | Mark a function as an MCP prompt handler |
| [`#[prompt_router]`][prompt_router] | Generate a prompt router from an impl block |
| [`#[prompt_handler]`][prompt_handler] | Generate `get_prompt` and `list_prompts` handler methods |
| [`#[task_handler]`][task_handler] | Wire up the task lifecycle on top of an `OperationProcessor` |
[tool]: https://docs.rs/rmcp-macros/latest/rmcp_macros/attr.tool.html
[tool_router]: https://docs.rs/rmcp-macros/latest/rmcp_macros/attr.tool_router.html
[tool_handler]: https://docs.rs/rmcp-macros/latest/rmcp_macros/attr.tool_handler.html
[prompt]: https://docs.rs/rmcp-macros/latest/rmcp_macros/attr.prompt.html
[prompt_router]: https://docs.rs/rmcp-macros/latest/rmcp_macros/attr.prompt_router.html
[prompt_handler]: https://docs.rs/rmcp-macros/latest/rmcp_macros/attr.prompt_handler.html
[task_handler]: https://docs.rs/rmcp-macros/latest/rmcp_macros/attr.task_handler.html
## Quick Example
```rust,ignore
use rmcp::{tool, tool_router, tool_handler, ServerHandler, model::*};
#[derive(Clone)]
struct MyServer {
tool_router: rmcp::handler::server::tool::ToolRouter,
}
#[tool_router]
impl MyServer {
#[tool(description = "Say hello")]
async fn hello(&self) -> String {
"Hello, world!".into()
}
}
#[tool_handler]
impl ServerHandler for MyServer {
fn get_info(&self) -> ServerInfo {
ServerInfo::default()
}
}
```
See the [full documentation](https://docs.rs/rmcp-macros) for detailed usage of each macro.
## License
Please refer to the LICENSE file in the project root directory.