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abeckDevabeckDev
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Merge pull request #4 from abeckDev/feature/basic-mcp-scaffold
Feature/basic mcp scaffold
2 parents f8209a6 + dd64407 commit 77873c0

15 files changed

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‎.devcontainer/devcontainer.json‎

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// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
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"image": "mcr.microsoft.com/devcontainers/dotnet:1-9.0-bookworm",
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"features": {
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"ghcr.io/devcontainers/features/azure-cli:1": {}
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"ghcr.io/devcontainers/features/azure-cli:1": {},
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"ghcr.io/devcontainers/features/node:1": {
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"version": "lts"
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}
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},
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// Features to add to the dev container. More info: https://containers.dev/features.
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// "features": {},
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// Use 'forwardPorts' to make a list of ports inside the container available locally.
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// "forwardPorts": [5000, 5001],
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// "portsAttributes": {
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// "5001": {
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// "protocol": "https"
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// }
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// }
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"forwardPorts": [6274, 6277, 3001],
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"portsAttributes": {
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"6274": {
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"protocol": "http",
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"label": "MCP-Inspector",
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"onAutoForward": "notify"
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},
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"6277": {
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"protocol": "http",
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"label": "MCP-Inspector-Proxy",
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"onAutoForward": "notify"
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},
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"3001":{
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"label": "MCP-Server",
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"onAutoForward": "notify",
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"protocol": "http"
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}
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},
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// Use 'postCreateCommand' to run commands after the container is created.
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// "postCreateCommand": "dotnet restore",
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"postCreateCommand": "npm install -g @modelcontextprotocol/inspector",
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// Configure tool-specific properties.
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"customizations": {

‎.gitignore‎

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*.userosscache
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*.sln.docstates
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*.env
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AbeckDev.DbTimetable.Mcp/appsettings.Development.json
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# User-specific files (MonoDevelop/Xamarin Studio)
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*.userprefs

‎.vscode/launch.json‎

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{
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"version": "0.2.0",
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"configurations": [
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{
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"name": "Debug MCP Server with Inspector (HTTP)",
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"type": "node",
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"request": "launch",
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"runtimeExecutable": "npx",
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"runtimeArgs": [
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"@modelcontextprotocol/inspector",
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"--transport",
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"http",
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"--server-url",
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"http://localhost:3001/mcp"
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],
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"env": {
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"HOST": "0.0.0.0"
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},
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"console": "integratedTerminal",
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"internalConsoleOptions": "neverOpen",
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"preLaunchTask": "build-and-run-server",
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"serverReadyAction": {
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"pattern": "MCP Inspector is up and running at:\\s+(http://[^\\s]+)",
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"uriFormat": "%s",
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"action": "openExternally"
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}
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}
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]
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}

‎.vscode/settings.json‎

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{
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"dotnet.defaultSolution": "AbeckDev.DbTimetable.sln"
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}

‎.vscode/tasks.json‎

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{
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"version": "2.0.0",
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"tasks": [
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{
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"label": "restore-solution",
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"command": "dotnet",
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"type": "process",
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"args": [
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"restore",
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"${workspaceFolder}/AbeckDev.DbTimetable.sln"
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],
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"problemMatcher": "$msCompile",
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"presentation": {
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"reveal": "silent",
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"panel": "shared"
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}
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},
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{
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"label": "build-solution",
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"command": "dotnet",
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"type": "process",
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"args": [
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"build",
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"${workspaceFolder}/AbeckDev.DbTimetable.sln",
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"--no-restore"
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],
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"problemMatcher": "$msCompile",
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"group": {
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"kind": "build",
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"isDefault": true
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},
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"dependsOn": [
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"restore-solution"
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],
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"presentation": {
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"reveal": "always",
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"panel": "shared"
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}
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},
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{
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"label": "install-mcp-inspector",
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"type": "shell",
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"command": "npx",
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"args": [
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"-y",
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"@modelcontextprotocol/inspector"
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],
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"problemMatcher": [],
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"presentation": {
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"reveal": "silent",
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"panel": "shared"
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}
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},
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{
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"label": "run-mcp-server",
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"command": "dotnet",
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"type": "process",
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"args": [
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"run",
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"--project",
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"${workspaceFolder}/AbeckDev.DbTimetable.Mcp/AbeckDev.DbTimetable.Mcp.csproj"
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],
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"isBackground": true,
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"problemMatcher": {
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"pattern": {
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"regexp": "^$",
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"file": 1,
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"location": 2,
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"message": 3
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},
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"background": {
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"activeOnStart": true,
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"beginsPattern": "^.*Building.*$",
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"endsPattern": "^.*Now listening on.*$|^.*Application started.*$"
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}
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},
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"presentation": {
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"reveal": "always",
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"panel": "dedicated"
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}
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},
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{
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"label": "build-and-run-server",
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"dependsOn": [
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"build-solution",
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"run-mcp-server"
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],
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"dependsOrder": "sequence",
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"problemMatcher": []
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}
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]
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}

‎AbeckDev.DbTimetable.Mcp/AbeckDev.DbTimetable.Mcp.csproj‎

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<Project Sdk="Microsoft.NET.Sdk.Web">
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<PropertyGroup>
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<TargetFramework>net9.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.5" />
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<PackageReference Include="ModelContextProtocol" Version="0.4.0-preview.3" />
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<PackageReference Include="ModelContextProtocol.AspNetCore" Version="0.4.0-preview.3" />
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</ItemGroup>
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</Project>

‎AbeckDev.DbTimetable.Mcp/Models/Configuration.cs‎

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using System;
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namespace AbeckDev.DbTimetable.Mcp.Models;
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public class Configuration
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{
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public const string SectionName = "DeutscheBahnApi";
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public string BaseUrl { get; set; } = "https://apis.deutschebahn.com/db-api-marketplace/apis/timetables/v1/";
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public string ClientId { get; set; } = string.Empty;
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public string ApiKey { get; set; } = string.Empty;
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}

‎AbeckDev.DbTimetable.Mcp/Program.cs‎

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//Minimal API approach
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using AbeckDev.DbTimetable.Mcp.Models;
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using AbeckDev.DbTimetable.Mcp.Services;
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using ModelContextProtocol.Protocol;
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var builder = WebApplication.CreateBuilder(args);
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//Setup Config provider
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builder.Configuration
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.SetBasePath(Directory.GetCurrentDirectory())
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.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
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.AddJsonFile($"appsettings.{builder.Environment.EnvironmentName}.json", optional: true)
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.AddEnvironmentVariables();
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builder.Services.Configure<Configuration>(
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builder.Configuration.GetSection(Configuration.SectionName));
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var dbConfig = builder.Configuration
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.GetSection(Configuration.SectionName)
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.Get<Configuration>() ?? new Configuration();
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builder.Services.AddHttpClient<TimeTableService>(client =>
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{
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client.BaseAddress = new Uri(dbConfig.BaseUrl);
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client.DefaultRequestHeaders.Accept.Add(
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new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/xml"));
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client.Timeout = TimeSpan.FromSeconds(30);
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});
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// Add services to the container.
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// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
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builder.Services.AddMcpServer(options =>
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{
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options.ServerInfo = new Implementation { Name = "Deutsche Bahn - Timetable API", Version = "1.0.0" };
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})
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.WithHttpTransport()
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.WithToolsFromAssembly()
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.WithPromptsFromAssembly();
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var app = builder.Build();
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app.MapMcp("/mcp");
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app.Run("http://0.0.0.0:3001");

‎AbeckDev.DbTimetable.Mcp/Prompts.cs‎

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using System;
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using System.ComponentModel;
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using Microsoft.Extensions.AI;
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using ModelContextProtocol.Server;
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namespace AbeckDev.DbTimetable.Mcp;
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[McpServerPromptType]
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public static class Prompts
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{
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[McpServerPrompt, Description("Creates a prompt to summarize the provided message.")]
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public static ChatMessage Summarize([Description("The content to summarize")] string content) =>
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new(ChatRole.User, $"Please summarize this content into a single sentence: {content}");
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}

‎AbeckDev.DbTimetable.Mcp/Properties/launchSettings.json‎

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{
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"$schema": "https://json.schemastore.org/launchsettings.json",
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"profiles": {
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"http": {
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"commandName": "Project",
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"dotnetRunMessages": true,
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"launchBrowser": false,
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"applicationUrl": "http://localhost:5252",
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"environmentVariables": {
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"ASPNETCORE_ENVIRONMENT": "Development"
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}
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},
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"https": {
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"commandName": "Project",
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"dotnetRunMessages": true,
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"launchBrowser": false,
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"applicationUrl": "https://localhost:7041;http://localhost:5252",
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"environmentVariables": {
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"ASPNETCORE_ENVIRONMENT": "Development"
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}
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}
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}
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}

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