feat: Add DeepSeek API key and fix MCP environment variable parsing

fix: missing mcp_config.json files required for building

.env.template

@@ -1,6 +1,11 @@
+
+
 # Your openai api key. (required)
 OPENAI_API_KEY=sk-xxxx
 
+# DeepSeek Api Key. (Optional)
+DEEPSEEK_API_KEY=
+
 # Access password, separated by comma. (optional)
 CODE=your-password
 
@@ -70,5 +75,6 @@ ANTHROPIC_API_VERSION=
 ### anthropic claude Api url (optional)
 ANTHROPIC_URL=
 
+
 ### (optional)
 WHITE_WEBDAV_ENDPOINTS=

.eslintignore

@@ -1,2 +1,3 @@
 public/serviceWorker.js
-app/mcp/mcp_config.json
+app/mcp/mcp_config.json
+app/mcp/mcp_config.default.json

Dockerfile

@@ -42,7 +42,7 @@ COPY --from=builder /app/.next/static ./.next/static
 COPY --from=builder /app/.next/server ./.next/server
 
 RUN mkdir -p /app/app/mcp && chmod 777 /app/app/mcp
-COPY --from=builder /app/app/mcp/mcp_config.json /app/app/mcp/
+COPY --from=builder /app/app/mcp/mcp_config.default.json /app/app/mcp/mcp_config.json
 
 EXPOSE 3000
 

README.md

@@ -5,6 +5,7 @@
 </a>
 
 
+
 <h1 align="center">NextChat (ChatGPT Next Web)</h1>
 
 English / [简体中文](./README_CN.md)
@@ -39,6 +40,12 @@ One-Click to get a well-designed cross-platform ChatGPT web UI, with Claude, GPT
 
 </div>
 
+## 🫣 NextChat Support MCP  ! 
+> Before build, please set env ENABLE_MCP=true
+
+<img src="https://github.com/user-attachments/assets/d8851f40-4e36-4335-b1a4-ec1e11488c7e"/>
+
+
 ## Enterprise Edition
 
 Meeting Your Company's Privatization and Customization Deployment Requirements:
@@ -333,6 +340,12 @@ Stability API key.
 
 Customize Stability API url.
 
+
+### `ENABLE_MCP` (optional)
+
+Enable MCP（Model Context Protocol）Feature
+
+
 ## Requirements
 
 NodeJS >= 18, Docker >= 20
@@ -391,6 +404,16 @@ If your proxy needs password, use:
 -e PROXY_URL="http://127.0.0.1:7890 user pass"
 ```
 
+If enable MCP, use：
+
+```
+docker run -d -p 3000:3000 \
+   -e OPENAI_API_KEY=sk-xxxx \
+   -e CODE=your-password \
+   -e ENABLE_MCP=true \
+   yidadaa/chatgpt-next-web
+```
+
 ### Shell
 
 ```shell

README_CN.md

@@ -27,7 +27,8 @@
 
 企业版咨询: **business@nextchat.dev**
 
-<img width="300" src="https://github.com/user-attachments/assets/3daeb7b6-ab63-4542-9141-2e4a12c80601">
+<img width="300" src="https://github.com/user-attachments/assets/bb29a11d-ff75-48a8-b1f8-d2d7238cf987">
+
 
 ## 开始使用
 

app/components/chat.tsx

@@ -72,6 +72,9 @@ import {
   safeLocalStorage,
   getModelSizes,
   supportsCustomSize,
+  useMobileScreen,
+  selectOrCopy,
+  showPlugins,
 } from "../utils";
 
 import { uploadImage as uploadImageRemote } from "@/app/utils/chat";

app/config/server.ts

@@ -255,6 +255,6 @@ export const getServerSideConfig = () => {
     defaultModel,
     visionModels,
     allowedWebDavEndpoints,
-    enableMcp: !!process.env.ENABLE_MCP,
+    enableMcp: process.env.ENABLE_MCP === "true",
   };
 };

app/constant.ts

@@ -393,6 +393,7 @@ You are an AI assistant with access to system tools. Your role is to help users
 
 export const SUMMARIZE_MODEL = "gpt-4o-mini";
 export const GEMINI_SUMMARIZE_MODEL = "gemini-pro";
+export const DEEPSEEK_SUMMARIZE_MODEL = "deepseek-chat";
 
 export const KnowledgeCutOffDate: Record<string, string> = {
   default: "2021-09",
@@ -561,7 +562,7 @@ const iflytekModels = [
   "4.0Ultra",
 ];
 
-const deepseekModels = ["deepseek-chat", "deepseek-coder"];
+const deepseekModels = ["deepseek-chat", "deepseek-coder", "deepseek-reasoner"];
 
 const xAIModes = ["grok-beta"];
 

app/mcp/actions.ts

@@ -365,6 +365,8 @@ export async function getMcpConfigFromFile(): Promise<McpConfigData> {
 // 更新 MCP 配置文件
 async function updateMcpConfig(config: McpConfigData): Promise<void> {
   try {
+    // 确保目录存在
+    await fs.mkdir(path.dirname(CONFIG_PATH), { recursive: true });
     await fs.writeFile(CONFIG_PATH, JSON.stringify(config, null, 2));
   } catch (error) {
     throw error;

app/mcp/mcp_config.default.json

@@ -0,0 +1,3 @@
+{
+  "mcpServers": {}
+}

app/store/chat.ts

@@ -20,6 +20,7 @@ import {
   DEFAULT_MODELS,
   DEFAULT_SYSTEM_TEMPLATE,
   GEMINI_SUMMARIZE_MODEL,
+  DEEPSEEK_SUMMARIZE_MODEL,
   KnowledgeCutOffDate,
   MCP_SYSTEM_TEMPLATE,
   MCP_TOOLS_TEMPLATE,
@@ -35,7 +36,7 @@ import { ModelConfig, ModelType, useAppConfig } from "./config";
 import { useAccessStore } from "./access";
 import { collectModelsWithDefaultModel } from "../utils/model";
 import { createEmptyMask, Mask } from "./mask";
-import { executeMcpAction, getAllTools } from "../mcp/actions";
+import { executeMcpAction, getAllTools, isMcpEnabled } from "../mcp/actions";
 import { extractMcpJson, isMcpJson } from "../mcp/utils";
 
 const localStorage = safeLocalStorage();
@@ -143,7 +144,10 @@ function getSummarizeModel(
   }
   if (currentModel.startsWith("gemini")) {
     return [GEMINI_SUMMARIZE_MODEL, ServiceProvider.Google];
+  } else if (currentModel.startsWith("deepseek-")) {
+    return [DEEPSEEK_SUMMARIZE_MODEL, ServiceProvider.DeepSeek];
   }
+
   return [currentModel, providerName];
 }
 
@@ -245,7 +249,7 @@ export const useChatStore = createPersistStore(
 
         newSession.topic = currentSession.topic;
         // 深拷贝消息
-        newSession.messages = currentSession.messages.map(msg => ({
+        newSession.messages = currentSession.messages.map((msg) => ({
           ...msg,
           id: nanoid(), // 生成新的消息 ID
         }));
@@ -551,27 +555,32 @@ export const useChatStore = createPersistStore(
           (session.mask.modelConfig.model.startsWith("gpt-") ||
             session.mask.modelConfig.model.startsWith("chatgpt-"));
 
-        const mcpSystemPrompt = await getMcpSystemPrompt();
+        const mcpEnabled = await isMcpEnabled();
+        const mcpSystemPrompt = mcpEnabled ? await getMcpSystemPrompt() : "";
 
         var systemPrompts: ChatMessage[] = [];
-        systemPrompts = shouldInjectSystemPrompts
+
-          ? [
-              createMessage({
-                role: "system",
-                content:
-                  fillTemplateWith("", {
-                    ...modelConfig,
-                    template: DEFAULT_SYSTEM_TEMPLATE,
-                  }) + mcpSystemPrompt,
-              }),
-            ]
-          : [
-              createMessage({
-                role: "system",
-                content: mcpSystemPrompt,
-              }),
-            ];
         if (shouldInjectSystemPrompts) {
+          systemPrompts = [
+            createMessage({
+              role: "system",
+              content:
+                fillTemplateWith("", {
+                  ...modelConfig,
+                  template: DEFAULT_SYSTEM_TEMPLATE,
+                }) + mcpSystemPrompt,
+            }),
+          ];
+        } else if (mcpEnabled) {
+          systemPrompts = [
+            createMessage({
+              role: "system",
+              content: mcpSystemPrompt,
+            }),
+          ];
+        }
+
+        if (shouldInjectSystemPrompts || mcpEnabled) {
           console.log(
             "[Global System Prompt] ",
             systemPrompts.at(0)?.content ?? "empty",
@@ -816,6 +825,8 @@ export const useChatStore = createPersistStore(
 
       /** check if the message contains MCP JSON and execute the MCP action */
       checkMcpJson(message: ChatMessage) {
+        const mcpEnabled = isMcpEnabled();
+        if (!mcpEnabled) return;
         const content = getMessageTextContent(message);
         if (isMcpJson(content)) {
           try {