Crate turbomcp_wire 

TurboMCP Wire Format Codec

This crate provides wire format encoding/decoding abstractions for MCP messages. It enables pluggable serialization formats while maintaining MCP protocol compliance.

Design Philosophy

• Wire format: JSON-RPC 2.0 (MCP protocol standard)
• Extensible: Support for alternative formats (MessagePack, etc.)
• Zero-copy ready: Integration with rkyv for internal message passing
• no_std compatible: Works in embedded and WASM environments

Usage

use turbomcp_wire::{Codec, JsonCodec};
use serde::{Serialize, Deserialize};

#[derive(Serialize, Deserialize)]
struct MyMessage {
    id: u32,
    method: String,
}

let codec = JsonCodec::new();
let msg = MyMessage { id: 1, method: "test".into() };

// Encode to bytes
let bytes = codec.encode(&msg).unwrap();

// Decode from bytes
let decoded: MyMessage = codec.decode(&bytes).unwrap();

Features

• std - Standard library support (default)
• json - JSON codec (default)
• simd - SIMD-accelerated JSON (sonic-rs, simd-json)
• msgpack - MessagePack binary format

Structs

CodecError

Wire format codec error

JsonCodec

JSON codec using serde_json

McpError

Unified MCP error type

MsgPackCodecmsgpack

MessagePack binary codec

SimdJsonCodecsimd

SIMD-accelerated JSON codec using sonic-rs

StreamingJsonDecoder

Streaming JSON decoder for Server-Sent Events (SSE)

Enums

AnyCodec

Enum wrapper for all codec types

Traits

Codec

Wire format codec trait

Type Aliases

CodecResult

Result type for codec operations