Add Helidon MCP Server

[thesurenk]

• Add server configuration for helidon-mcp-server
• Includes Docker image, tools definition, and documentation
• Server implements MCP protocol with JSON-RPC support
• Built with Java 21 and Helidon framework
• Successfully tested locally with Docker MCP gateway

---

name: Add a new MCP server
about: Requests for adding a new MCP server to the Docker Catalog
title: "Add Helidon MCP Server"
labels: submission
assignees: ""

MCP Server Information

Server Name: helidon-mcp-server
Repository URL: https://github.com/thesurenk/helidon-mcp-server
Brief Description: A base MCP (Model Context Protocol) server implementation using Helidon framework, containerized with Docker for easy deployment and testing. Built with Java 21 and Helidon 4.0.7, implements MCP protocol with JSON-RPC support.

Basic Requirements

• [x ] Open Source: Uses acceptable license (Apache-2.0, MIT, BSD-2-Clause, BSD-3-Clause or other permissive license)
• [x ] MCP Compliant: Implements MCP API specification
• [ x] Active Development: Recent commits and maintained
• [ x] Docker Artifact: Dockerfile
• [ x] Documentation: Basic README and setup instructions
• [x ] Security Contact: Method for reporting security issues

Submitter Checklist

• [ x] This server meets the basic requirements listed above
• [x ] I understand this will undergo automated and manual review.
• [x ] I have tested the MCP Server using task validate -- --name SERVER_NAME
• [ x] I have built the MCP Server using task build -- --tools SERVER_NAME

Additional Information

Features

• MCP Protocol Support: Implements the Model Context Protocol for tool discovery and execution
• Docker Containerized: Ready-to-use Docker image with multi-stage build
• Java 21: Built with modern Java features and Helidon 4.0.7
• Self-contained JAR: All dependencies included in a single executable JAR
• HTTP Server: RESTful API endpoints for MCP protocol communication
• JSON-RPC Support: Full JSON-RPC 2.0 protocol implementation

Framework & Technology

• Helidon Framework: Built using Helidon 4.0.7 - Oracle's modern Java microservices framework
• Java 21: Leverages modern Java features and performance improvements
• Docker Multi-stage Build: Optimized container image with separate build and runtime stages
• Maven: Standard Java build tool with comprehensive dependency management

Testing Results

• ✅ Docker image builds successfully (mcp/helidon-mcp-server)
• ✅ Server responds to HTTP requests (http://localhost:8080/)
• ✅ MCP endpoint works with JSON-RPC protocol (http://localhost:8080/mcp)
• ✅ Tools discovery works correctly
• ✅ Successfully tested locally with Docker MCP gateway

Files Added

• servers/helidon-mcp-server/server.yaml - Server configuration
• servers/helidon-mcp-server/tools.json - Tools definition
• servers/helidon-mcp-server/readme.md - Documentation

References

• Source Repository: https://github.com/thesurenk/helidon-mcp-server
• Helidon Framework: https://helidon.io
• MCP Protocol: Model Context Protocol specification

[thesurenk]

team, any updates on this?