1+ using Anthropic . SDK ;
2+ using Microsoft . Extensions . AI ;
3+ using Microsoft . Extensions . Configuration ;
4+ using Microsoft . Extensions . Hosting ;
5+ using ModelContextProtocol . Client ;
6+ using ModelContextProtocol . Protocol . Transport ;
7+
8+ var builder = Host . CreateEmptyApplicationBuilder ( settings : null ) ;
9+
10+ builder . Configuration
11+ . AddEnvironmentVariables ( )
12+ . AddUserSecrets < Program > ( ) ;
13+
14+ var mcpClient = await McpClientFactory . CreateAsync ( new ( )
15+ {
16+ Id = "weather" ,
17+ Name = "Weather" ,
18+ TransportType = TransportTypes . StdIo ,
19+ TransportOptions = new ( )
20+ {
21+ [ "command" ] = "dotnet" ,
22+ [ "arguments" ] = "run --project ../QuickstartWeatherServer" ,
23+ }
24+ } ) ;
25+
26+ var anthropicClient = new AnthropicClient ( new APIAuthentication ( builder . Configuration [ "ANTHROPIC_API_KEY" ] ) )
27+ . Messages
28+ . AsBuilder ( )
29+ . UseFunctionInvocation ( )
30+ . Build ( ) ;
31+
32+ var tools = await mcpClient . ListToolsAsync ( ) ;
33+ foreach ( var tool in tools )
34+ {
35+ Console . WriteLine ( $ "Tool: { tool . Name } ") ;
36+ }
37+
38+ while ( true )
39+ {
40+ Console . WriteLine ( "MCP Client Started!" ) ;
41+ Console . WriteLine ( "Enter a command (or 'exit' to quit):" ) ;
42+
43+ string ? command = Console . ReadLine ( ) ;
44+
45+ if ( string . IsNullOrWhiteSpace ( command ) )
46+ {
47+ continue ;
48+ }
49+ if ( string . Equals ( command , "exit" , StringComparison . OrdinalIgnoreCase ) )
50+ {
51+ break ;
52+ }
53+
54+ var response = await ProcessQueryAsync ( command ) ;
55+
56+ if ( string . IsNullOrWhiteSpace ( response ) )
57+ {
58+ Console . WriteLine ( "No response received." ) ;
59+ }
60+ else
61+ {
62+ Console . WriteLine ( $ "Response: { response } ") ;
63+ }
64+ }
65+
66+ async Task < string > ProcessQueryAsync ( string query )
67+ {
68+ var options = new ChatOptions
69+ {
70+ MaxOutputTokens = 1000 ,
71+ ModelId = "claude-3-5-sonnet-20241022" ,
72+ Tools = [ .. tools . Cast < AITool > ( ) ]
73+ } ;
74+
75+ var response = await anthropicClient . GetResponseAsync ( query , options ) ;
76+
77+ return "" ;
78+ }
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