feat: add MCP server for AI assistant integration (#5882)

apps/nextjs/src/app/api/mcp/_extract-tools.ts

@@ -0,0 +1,23 @@
+import { extractToolsFromProcedures } from "trpc-to-mcp";
+
+import { mcpRouter } from "@homarr/api/mcp";
+
+let cache: ReturnType<typeof extractToolsFromProcedures> | null = null;
+
+export function extractMcpTools() {
+  if (cache) return cache;
+
+  const originalWarn = console.warn;
+  console.warn = (...args: unknown[]) => {
+    if (typeof args[0] === "string" && args[0].includes("[TRPC-TO-MCP]")) return;
+    originalWarn.apply(console, args);
+  };
+
+  try {
+    cache = extractToolsFromProcedures(mcpRouter);
+  } finally {
+    console.warn = originalWarn;
+  }
+
+  return cache;
+}