Show HN: MCP Server SDK in Bash

A Bash SDK for building MCP (Model Context Protocol) servers, enabling developers to create protocol-compliant servers using shell scripts. This project provides tools and abstractions to simplify MCP server implementation in Bash environments.

Key Points

• •MCP (Model Context Protocol) Server SDK is now available in Bash, enabling developers to build MCP servers using shell scripting
• •Bash-based MCP servers can integrate with AI agents and LLMs by implementing the MCP protocol specification
• •The SDK provides a lightweight alternative to traditional programming languages for rapid prototyping and simple server implementations
• •Developers can define tools, resources, and prompts that AI agents can discover and invoke through the MCP protocol
• •Bash implementation allows system administrators and DevOps engineers to leverage existing shell scripts as MCP server capabilities
• •The SDK handles JSON-RPC communication protocol, reducing boilerplate code for developers
• •Suitable for building MCP servers for system utilities, CLI tool wrappers, and automation scripts without language overhead
• •Enables integration between existing Bash-based infrastructure and modern AI agent platforms

Workflow Diagram

Concepts