pulseengine/mcp

 

Rust framework for building Model Context Protocol servers and clients.

[!NOTE] Part of the PulseEngine toolchain. Provides the MCP implementation used across PulseEngine’s AI-assisted development infrastructure.

Example

use pulseengine_mcp_macros::{mcp_server, mcp_tools};
use schemars::JsonSchema;
use serde::{Deserialize, Serialize};

#[derive(Debug, Clone, Serialize, Deserialize, JsonSchema)]
pub struct GreetParams {
    pub name: Option,
}

#[mcp_server(name = "My Server")]
#[derive(Default, Clone)]
pub struct MyServer;

#[mcp_tools]
impl MyServer {
    /// Greet someone by name
    pub async fn greet(&self, params: GreetParams) -> anyhow::Result {
        let name = params.name.unwrap_or_else(|| "World".to_string());
        Ok(format!("Hello, {name}!"))
    }
}

#[tokio::main]
async fn main() -> Result> {
    MyServer::configure_stdio_logging();
    MyServer::with_defaults().serve_stdio().await?.run().await
}

The #[mcp_server] and #[mcp_tools] macros generate the protocol implementation. Tool schemas are derived from your Rust types via JsonSchema.

Crates

Examples

• hello-world — Minimal server
• hello-world-with-auth — With authentication
• resources-demo — Resource templates with #[mcp_resource]
• ui-enabled-server — MCP Apps extension (SEP-1865)

MCP Spec

Implements MCP 2025-11-25: tools, resources, prompts, completions, sampling, roots, logging, progress, cancellation, tasks, and elicitation.

License

MIT OR Apache-2.0

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