openai/openai-dotnet
Publicmirrored from https://github.com/openai/openai-dotnetAvailable
src/Utility/MCP/McpClient.cs
68lines · modecode
| 1 | using System; |
| 2 | using System.ClientModel.Primitives; |
| 3 | using System.Threading.Tasks; |
| 4 | |
| 5 | namespace OpenAI.Agents; |
| 6 | |
| 7 | /// <summary> |
| 8 | /// Client for interacting with a Model Context Protocol (MCP) server. |
| 9 | /// </summary> |
| 10 | //[Experimental("OPENAIMCP001")] |
| 11 | internal class McpClient |
| 12 | { |
| 13 | private readonly McpSession _session; |
| 14 | private readonly ClientPipeline _pipeline; |
| 15 | |
| 16 | /// <summary> |
| 17 | /// Gets the endpoint URI of the MCP server. |
| 18 | /// </summary> |
| 19 | public virtual Uri Endpoint { get; } |
| 20 | |
| 21 | /// <summary> |
| 22 | /// Initializes a new instance of the <see cref="McpClient"/> class. |
| 23 | /// </summary> |
| 24 | /// <param name="endpoint">The URI endpoint of the MCP server.</param> |
| 25 | public McpClient(Uri endpoint) |
| 26 | { |
| 27 | _pipeline = ClientPipeline.Create(); |
| 28 | _session = new McpSession(endpoint, _pipeline); |
| 29 | Endpoint = endpoint; |
| 30 | } |
| 31 | |
| 32 | /// <summary> |
| 33 | /// Starts the MCP client session by initializing the connection to the server. |
| 34 | /// </summary> |
| 35 | /// <returns>A task that represents the asynchronous operation.</returns> |
| 36 | public virtual async Task StartAsync() |
| 37 | { |
| 38 | await _session.EnsureInitializedAsync().ConfigureAwait(false); |
| 39 | } |
| 40 | |
| 41 | /// <summary> |
| 42 | /// Lists all available tools from the MCP server. |
| 43 | /// </summary> |
| 44 | /// <returns>A task that represents the asynchronous operation. The task result contains the binary data representing the tools list.</returns> |
| 45 | /// <exception cref="InvalidOperationException">Thrown when the session is not initialized.</exception> |
| 46 | public virtual async Task<BinaryData> ListToolsAsync() |
| 47 | { |
| 48 | if (_session == null) |
| 49 | throw new InvalidOperationException("Session is not initialized. Call StartAsync() first."); |
| 50 | |
| 51 | return await _session.SendMethod("tools/list").ConfigureAwait(false); |
| 52 | } |
| 53 | |
| 54 | /// <summary> |
| 55 | /// Calls a specific tool on the MCP server. |
| 56 | /// </summary> |
| 57 | /// <param name="toolName">The name of the tool to call.</param> |
| 58 | /// <param name="parameters">The parameters to pass to the tool as binary data.</param> |
| 59 | /// <returns>A task that represents the asynchronous operation. The task result contains the binary data representing the tool's response.</returns> |
| 60 | /// <exception cref="InvalidOperationException">Thrown when the session is not initialized.</exception> |
| 61 | public virtual async Task<BinaryData> CallToolAsync(string toolName, BinaryData parameters) |
| 62 | { |
| 63 | if (_session == null) |
| 64 | throw new InvalidOperationException("Session is not initialized. Call StartAsync() first."); |
| 65 | |
| 66 | return await _session.CallTool(toolName, parameters).ConfigureAwait(false); |
| 67 | } |
| 68 | } |
| 69 | |