TsgcWSAPIServer_MCP turns an sgc HTTP or WebSocket server into a Model Context Protocol server. Publish your own tools, prompts and resources, and any MCP-aware client, an IDE agent, a desktop assistant or your own code, can call into your application.
The server half of MCP. It parses JSON-RPC at your endpoint, manages sessions, raises an event per tool, prompt or resource request, and can push notifications and server-initiated requests back to the client.
TsgcWSAPIServer_MCP
Host tools for AI clients
Windows, macOS, Linux, iOS and Android
sgcAI is self-contained. This component ships inside sgcAI together with the sgcWebSockets Core runtime it is built on, so there is no base license to buy.
Attach the API to a server, fill in ServerInfo, handle the request events, set Active.
uses
sgcAI, sgcAI_MCP_Classes, sgcHTTP_Server;
var
oMCP: TsgcWSAPIServer_MCP;
begin
oMCP := TsgcWSAPIServer_MCP.Create(nil);
oMCP.Server := sgcHTTPServer1;
oMCP.EndpointOptions.Endpoint := '/mcp';
oMCP.MCPOptions.ServerInfo.Name := 'sgc-mcp-server';
oMCP.MCPOptions.ServerInfo.Version := '1.0.0';
oMCP.MCPOptions.SessionTimeout := 300;
// Streamable HTTP enables notifications and server to client requests.
oMCP.TransportOptions.Http.Enabled := True;
oMCP.TransportOptions.HttpStreamable.Enabled := True;
oMCP.OnMCPInitialize := SrvInitialize;
oMCP.OnMCPSessionNew := SrvSessionNew;
oMCP.OnMCPRequestTool := SrvCallTool;
oMCP.OnMCPRequestPrompt := SrvGetPrompt;
oMCP.OnMCPRequestResource := SrvReadResource;
sgcHTTPServer1.Active := True;
// Tell every connected session the tool list changed.
oMCP.SendNotificationToolsListChanged;
end;// includes: sgcAI.hpp, sgcAI_MCP_Classes.hpp, sgcHTTP_Server.hpp
TsgcWSAPIServer_MCP *oMCP = new TsgcWSAPIServer_MCP(NULL);
oMCP->Server = sgcHTTPServer1;
oMCP->EndpointOptions->Endpoint = "/mcp";
oMCP->MCPOptions->ServerInfo->Name = "sgc-mcp-server";
oMCP->MCPOptions->ServerInfo->Version = "1.0.0";
oMCP->TransportOptions->HttpStreamable->Enabled = true;
oMCP->OnMCPRequestTool = SrvCallTool;
sgcHTTPServer1->Active = true;The members you reach for most often.
Server points at the HTTP or WebSocket server that listens, and EndpointOptions.Endpoint is the path the JSON-RPC requests arrive on.
ServerInfo is what clients see during the handshake. SessionTimeout expires idle sessions, TasksSupported advertises the tasks capability, and AuthenticationOptions covers API key, custom header and OAuth 2.0.
Http.Enabled serves plain JSON-RPC over POST. HttpStreamable.Enabled adds keep-alive plus the SSE notification stream, which is what makes notifications and server-initiated requests possible. HttpStreamable.ValidateOrigin pins a session to its original Origin header.
Tools, Prompts, Resources and ResourceTemplates hold what the server advertises. Fill them at startup or change them at runtime and send the matching list-changed notification.
OnMCPRequestTool, OnMCPRequestPrompt and OnMCPRequestResource are where your code does the work. OnMCPInitialize, OnMCPSessionNew and OnMCPSessionEnd track the session lifecycle, and OnMCPException reports failures.
SendNotificationToolsListChanged, SendNotificationPromptsListChanged, SendNotificationResourcesListChanged, SendNotificationResourcesUpdated and SendLogMessage push updates to connected sessions.
RequestRootsList, RequestSamplingCreateMessage and RequestElicitationCreate let the server ask the client for filesystem roots, a model completion or user input, answered on the matching OnMCPResponse* event.
The component implements the authorization server side of the MCP auth flow, including dynamic client registration, a consent page, PKCE and refresh tokens, so an agent can authorize against your server without a separate identity service.
Authoritative sources for the services and protocols this component uses.
| Online HelpFull API reference and usage guide for the sgcAI components. | Open | |
| All sgcAI ComponentsBrowse the full feature matrix of all 15 components. | Open | |
| Download Free TrialExpose your own application logic to an AI client. | Open | |
| PricingSingle, Team and Site licenses, full source code, no base product required. | Open |