chore: @modelcontextprotocol/sdk als Abhängigkeit hinzugefügt

README.md

@@ -0,0 +1,99 @@
+# Search Agent
+
+An intelligent search service with REST API, CLI, and MCP server interfaces.
+
+## Features
+
+- **REST API**: Full-featured HTTP API with streaming support
+- **CLI**: Command-line interface for quick searches
+- **MCP Server**: Model Context Protocol server for integration with AI assistants
+
+## Installation
+
+```bash
+npm install
+```
+
+## Usage
+
+### REST API Server
+
+```bash
+npm run serve
+```
+
+The server will start at `http://localhost:3000`.
+
+### CLI
+
+```bash
+npm run search "Your question here"
+```
+
+### MCP Server
+
+```bash
+npm run mcp
+```
+
+## MCP Configuration
+
+To use the search agent as an MCP server in your AI assistant, add this to your configuration:
+
+### Claude Desktop
+
+Add to `claude_desktop_config.json`:
+
+```json
+{
+  "mcpServers": {
+    "search-agent": {
+      "command": "node",
+      "args": ["/path/to/searchAgent/mcpServer.js"],
+      "env": {
+        "EXA_API_KEY": "your-exa-api-key",
+        "OPENROUTER_API_KEY": "your-openrouter-api-key"
+      }
+    }
+  }
+}
+```
+
+### Other MCP Clients
+
+For other MCP clients, configure the command as:
+- Command: `node`
+- Args: `["/path/to/searchAgent/mcpServer.js"]`
+- Environment variables: `EXA_API_KEY` and `OPENROUTER_API_KEY`
+
+## Available MCP Tools
+
+### search
+
+Search for information and return a summarized answer with sources.
+
+**Parameters:**
+- `question` (required): The question or topic to search for
+- `previousClarification` (optional): Previous clarification from the user if the question needed refinement
+- `originalQuestion` (optional): The original question if this is a follow-up
+
+**Example:**
+```json
+{
+  "name": "search",
+  "arguments": {
+    "question": "What are the latest developments in AI?"
+  }
+}
+```
+
+## Environment Variables
+
+Required:
+- `EXA_API_KEY`: Your Exa API key
+- `OPENROUTER_API_KEY`: Your OpenRouter API key
+
+Optional:
+- `PORT`: Port for REST server (default: 3000)
+- `HOST`: Host for REST server (default: 0.0.0.0)
+- `MAINTENANCE_MODE`: Set to "true" to enable maintenance mode

mcpServer.js

@@ -0,0 +1,11 @@
+#!/home/seb/.nvm/versions/node/v22.15.1/bin/node
+import dotenv from 'dotenv';
+import { startMCPServer } from './src/mcpServer.js';
+
+// Load environment variables from .env file
+dotenv.config();
+
+startMCPServer().catch((error) => {
+  console.error('Failed to start MCP server:', error);
+  process.exit(1);
+});

package-lock.json

@@ -9,6 +9,7 @@
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
+        "@modelcontextprotocol/sdk": "^1.0.4",
         "@openrouter/sdk": "^0.11.2",
         "chalk": "^5.6.2",
         "dotenv": "^17.2.3",
@@ -17,6 +18,58 @@
         "tiktoken": "^1.0.22"
       }
     },
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+      "license": "MIT",
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+    "node_modules/@modelcontextprotocol/sdk": {
+      "version": "1.29.0",
+      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.29.0.tgz",
+      "integrity": "sha512-zo37mZA9hJWpULgkRpowewez1y6ML5GsXJPY8FI0tBBCd77HEvza4jDqRKOXgHNn867PVGCyTdzqpz0izu5ZjQ==",
+      "license": "MIT",
+      "dependencies": {
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+        "ajv-formats": "^3.0.1",
+        "content-type": "^1.0.5",
+        "cors": "^2.8.5",
+        "cross-spawn": "^7.0.5",
+        "eventsource": "^3.0.2",
+        "eventsource-parser": "^3.0.0",
+        "express": "^5.2.1",
+        "express-rate-limit": "^8.2.1",
+        "hono": "^4.11.4",
+        "jose": "^6.1.3",
+        "json-schema-typed": "^8.0.2",
+        "pkce-challenge": "^5.0.0",
+        "raw-body": "^3.0.0",
+        "zod": "^3.25 || ^4.0",
+        "zod-to-json-schema": "^3.25.1"
+      },
+      "engines": {
+        "node": ">=18"
+      },
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+      },
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+        "zod": {
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+        }
+      }
+    },
     "node_modules/@openrouter/sdk": {
       "version": "0.11.2",
       "resolved": "https://registry.npmjs.org/@openrouter/sdk/-/sdk-0.11.2.tgz",
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+        "url": "https://github.com/sponsors/epoberezkin"
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+        "vary": "^1"
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+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
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@@ -163,6 +266,20 @@
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       "version": "2.11.0",
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@@ -343,6 +481,46 @@
         "url": "https://opencollective.com/express"
       }
     },
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+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/express-rate-limit/-/express-rate-limit-8.3.2.tgz",
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+      "funding": {
+        "url": "https://github.com/sponsors/express-rate-limit"
+      },
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+        "express": ">= 4.11"
+      }
+    },
+    "node_modules/fast-deep-equal": {
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+          "url": "https://github.com/sponsors/fastify"
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+          "type": "opencollective",
+          "url": "https://opencollective.com/fastify"
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@@ -464,6 +642,15 @@
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+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/panva"
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@@ -611,6 +834,15 @@
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+      "license": "MIT",
+      "engines": {
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@@ -674,6 +906,15 @@
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@@ -684,6 +925,15 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/pkce-challenge": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/pkce-challenge/-/pkce-challenge-5.0.1.tgz",
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@@ -736,6 +986,15 @@
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       "license": "ISC"
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+      "license": "MIT",
+      "dependencies": {
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+      },
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+      "license": "MIT",
+      "engines": {
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@@ -959,6 +1239,21 @@
         "webidl-conversions": "^3.0.0"
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package.json

@@ -6,12 +6,14 @@
   "scripts": {
     "serve": "node restSearch.js",
     "search": "node searchCLI.js",
+    "mcp": "node mcpServer.js",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "author": "",
   "license": "ISC",
   "description": "",
   "dependencies": {
+    "@modelcontextprotocol/sdk": "^1.0.4",
     "@openrouter/sdk": "^0.11.2",
     "chalk": "^5.6.2",
     "dotenv": "^17.2.3",

public/index.html

@@ -545,7 +545,7 @@
             <!-- Example Queries - Moved to top -->
             <div class="example-queries" style="margin-top: 0; padding-top: 0; border-top: none; margin-bottom: 20px;">
                 <h3>Beispiel Anfragen:</h3>
-                <button class="example-btn" onclick="setExample('Wie ist die Lage im Iran?')">Lage im Iran</button>
+                <button class="example-btn" onclick="setExample('Wie ist die aktuelle Nachrichten Lage im Iran?')">Lage im Iran</button>
                 <button class="example-btn" onclick="setExample('Welche KI Modelle wurden in den letzten Tagen veröffentlicht?')">Neue KI-Modelle</button>
                 <button class="example-btn" onclick="setExample('Wie ist das Wetter in Dresden?')">Wetter in Dresden</button>
                 <button class="example-btn" onclick="setExample('Was ist neu in React 19.2?')">React 19.2</button>

src/mcpServer.js

@@ -0,0 +1,124 @@
+import { Server } from '@modelcontextprotocol/sdk/server/index.js';
+import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
+import {
+  CallToolRequestSchema,
+  ListToolsRequestSchema,
+} from '@modelcontextprotocol/sdk/types.js';
+import { createClients } from './clients.js';
+import { getConfig, validateConfig } from './config/env.js';
+import { createSearchService } from './services/searchService.js';
+
+function createSimpleBroadcast() {
+  return (message, type = 'info', data = null) => {
+    // Log to stderr so it doesn't interfere with MCP protocol on stdout
+    const timestamp = new Date().toLocaleTimeString();
+    const prefix = type === 'error' ? '❌' : type === 'warning' ? '⚠️' : type === 'success' ? '✅' : 'ℹ️';
+    console.error(`[${timestamp}] ${prefix} ${message}`);
+  };
+}
+
+export async function startMCPServer() {
+  const config = getConfig();
+  validateConfig(config);
+
+  const clients = createClients(config);
+  const broadcast = createSimpleBroadcast();
+  const searchService = createSearchService({
+    ...clients,
+    broadcast,
+  });
+
+  const server = new Server(
+    {
+      name: 'search-agent',
+      version: '1.0.0',
+    },
+    {
+      capabilities: {
+        tools: {},
+      },
+    },
+  );
+
+  // Handler for listing available tools
+  server.setRequestHandler(ListToolsRequestSchema, async () => {
+    return {
+      tools: [
+        {
+          name: 'search',
+          description: 'Deep Web Research',
+          inputSchema: {
+            type: 'object',
+            properties: {
+              question: {
+                type: 'string',
+                description: 'The question or topic to search for',
+              },
+              previousClarification: {
+                type: 'string',
+                description: 'Optional: Previous clarification from the user if the question needed refinement',
+              },
+              originalQuestion: {
+                type: 'string',
+                description: 'Optional: The original question if this is a follow-up',
+              },
+            },
+            required: ['question'],
+          },
+        },
+      ],
+    };
+  });
+
+  // Handler for calling tools
+  server.setRequestHandler(CallToolRequestSchema, async (request) => {
+    const { name, arguments: args } = request.params;
+
+    if (name !== 'search') {
+      throw new Error(`Unknown tool: ${name}`);
+    }
+
+    const { question, previousClarification, originalQuestion } = args;
+
+    if (!question) {
+      throw new Error('Missing required parameter: question');
+    }
+
+    try {
+      broadcast(`MCP: Starting search for: "${question}"`, 'info');
+
+      const result = await searchService.search(question, previousClarification, originalQuestion);
+
+      broadcast('MCP: Search completed successfully', 'success');
+
+      // Return the result in a structured format
+      return {
+        content: [
+          {
+            type: 'text',
+            text: result.fullAnswerHTMLSnippet || 'No answer generated',
+          },
+        ],
+        isError: false,
+      };
+    } catch (error) {
+      broadcast(`MCP: Error: ${error.message}`, 'error');
+      
+      return {
+        content: [
+          {
+            type: 'text',
+            text: `Error: ${error.message}`,
+          },
+        ],
+        isError: true,
+      };
+    }
+  });
+
+  // Start the server with stdio transport
+  const transport = new StdioServerTransport();
+  await server.connect(transport);
+
+  console.error('🔌 MCP Search Agent server running on stdio');
+}

src/services/openRouterService.js

@@ -129,7 +129,7 @@ export async function rephraseQuestion({ question, previousClarification, origin
       The user has provided this clarification "${previousClarification}" to the original question: ` + originalQuestion;
 
     const params = {
-      model: 'openai/gpt-5.4-mini',
+      model: 'z-ai/glm-4.7:nitro',
       messages: [
         { role: 'system', content: prompt },
         { role: 'user', content: question },
@@ -173,7 +173,7 @@ export async function rephraseQuestion({ question, previousClarification, origin
   `;
 
   const params = {
-    model: 'openai/gpt-5.4-mini',
+    model: 'z-ai/glm-4.7:nitro',
     messages: [
       { role: 'system', content: prompt },
       { role: 'user', content: question },
@@ -258,16 +258,14 @@ export async function summarizeFinalAnswer({ openrouter, text, question }) {
   const enrichmentPrompt = `
     You are a content formatter. Take the following summary and enrich it with emojis and HTML tags.
     Allowed tags: <b>, <i>, <u>, <pre>, <ul>, <li>, <span style="color:...">, <p>, <div>, <hr/>
-    Make it visually appealing and easy to read. Keep the same language as the original summary.
+    Make it visually appealing and easy to read.
-    Summary to enrich:
-    ${summaryData.data.summary}
   `;
 
   const enrichmentParams = {
-    model: 'kwaipilot/kat-coder-pro-v2',
+    model: 'qwen/qwen3-235b-a22b-2507:nitro',
     messages: [
       { role: 'system', content: enrichmentPrompt },
-      { role: 'user', content: 'Please enrich the summary with HTML tags and emojis.' },
+      { role: 'user', content: summaryData.data.summary },
     ],
     reasoning: { effort: 'low' },
     response_format: {
@@ -314,7 +312,7 @@ export async function summarizeFinalAnswer({ openrouter, text, question }) {
       },
       {
         name: 'enrichment',
-        model: 'kwaipilot/kat-coder-pro-v2',
+        model: 'qwen/qwen3-235b-a22b-2507:nitro',
         cost: enrichmentData.cost,
         promptTokens: enrichmentData.prompt_tokens,
         completionTokens: enrichmentData.completion_tokens,

src/services/searchService.js

@@ -147,7 +147,7 @@ export function createSearchService({ exa, openrouter, broadcast }) {
           amount: rephraseResult.cost,
           prompt_tokens: rephraseResult.prompt_tokens,
           completion_tokens: rephraseResult.completion_tokens,
-          model: 'openai/gpt-5.4-mini'
+          model: 'z-ai/glm-4.7:nitro'
         });
       } catch (error) {
         throw new SearchServiceError('Failed to generate summary', 500, error);