💥🛠️ 使用GPT-4o和MCP Brave Search构建网络搜索聊天机器人
中级
这是一个自动化工作流，包含 15 个节点。主要使用 McpClientTool, Agent, ChatTrigger, LmChatOpenAi, MemoryBufferWindow 等节点。 💥🛠️ 基于GPT-4o和MCP Brave Search构建网络搜索聊天机器人
前置要求
- •OpenAI API Key
分类
-
工作流预览
可视化展示节点连接关系，支持缩放和平移
导出工作流
复制以下 JSON 配置到 n8n 导入，即可使用此工作流
{
"id": "6MRJ2tfl8c2f3AuE",
"meta": {
"instanceId": "31e69f7f4a77bf465b805824e303232f0227212ae922d12133a0f96ffeab4fef"
},
"name": "💥🛠️使用 GPT-4o 和 MCP Brave Search 构建网络搜索聊天机器人",
"tags": [],
"nodes": [
{
"id": "b6e5eaa8-ddb3-4c13-8069-ce360bf4a945",
"name": "AI 代理",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
240,
-180
],
"parameters": {
"options": {}
},
"typeVersion": 1.8
},
{
"id": "dde0154e-f7c2-4778-abcc-f79406db5e6b",
"name": "当收到聊天消息时",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
-260,
-180
],
"webhookId": "68e54e15-548a-44df-ad06-7fb9e4e912a9",
"parameters": {
"options": {}
},
"typeVersion": 1.1
},
{
"id": "877ce640-4d08-4ba7-b1d3-bcfc79600d2c",
"name": "MCP 获取 Brave 工具",
"type": "n8n-nodes-mcp.mcpClientTool",
"position": [
200,
280
],
"parameters": {},
"credentials": {
"mcpClientApi": {
"id": "t2IDYWq0EcqBWvMA",
"name": "MCP Client (STDIO) account 2"
}
},
"typeVersion": 1
},
{
"id": "fb3ce3c2-a809-43e5-92d0-82db0d78a971",
"name": "MCP 执行 Brave 搜索",
"type": "n8n-nodes-mcp.mcpClientTool",
"position": [
460,
280
],
"parameters": {
"toolName": "={{ $fromAI('tool', 'Set this with the specific tool name') }}",
"operation": "executeTool",
"toolParameters": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Tool_Parameters', ``, 'json') }}"
},
"credentials": {
"mcpClientApi": {
"id": "t2IDYWq0EcqBWvMA",
"name": "MCP Client (STDIO) account 2"
}
},
"typeVersion": 1
},
{
"id": "357bde6a-66d0-48dc-972d-d0b35e3868ed",
"name": "简单记忆",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
-120,
280
],
"parameters": {},
"typeVersion": 1.3
},
{
"id": "3eba14c5-e4ed-4c4f-8f1d-2b5671b462cc",
"name": "gpt-4o",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
-380,
280
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o",
"cachedResultName": "gpt-4o"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "jEMSvKmtYfzAkhe6",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "781e5d92-6e9d-4874-93fc-5ea17d11f67f",
"name": "便签",
"type": "n8n-nodes-base.stickyNote",
"position": [
120,
160
],
"parameters": {
"color": 4,
"height": 280,
"content": "## 1️⃣ MCP 获取 Brave 工具"
},
"typeVersion": 1
},
{
"id": "78a52697-352f-47ed-a7d2-3a65c9641fd7",
"name": "便签3",
"type": "n8n-nodes-base.stickyNote",
"position": [
380,
160
],
"parameters": {
"color": 4,
"height": 280,
"content": "## 2️⃣ MCP 执行 Brave 搜索"
},
"typeVersion": 1
},
{
"id": "876003d5-7d90-4865-af36-3c0e504b02e7",
"name": "便签4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-200,
160
],
"parameters": {
"color": 3,
"height": 280,
"content": "## 短期聊天记忆"
},
"typeVersion": 1
},
{
"id": "9f64f499-73d7-414f-a3d3-02c0417368a6",
"name": "便签5",
"type": "n8n-nodes-base.stickyNote",
"position": [
-460,
160
],
"parameters": {
"color": 5,
"height": 280,
"content": "## 云端LLM"
},
"typeVersion": 1
},
{
"id": "fc423452-832c-4377-9bde-04ab6d5c89aa",
"name": "便签6",
"type": "n8n-nodes-base.stickyNote",
"position": [
-500,
-400
],
"parameters": {
"color": 7,
"width": 1200,
"height": 920,
"content": "# 💥🛠️您的首个简易 MCP AI 聊天机器人（使用 Brave Search）"
},
"typeVersion": 1
},
{
"id": "5c6c7307-3283-4698-9104-c80df8a62888",
"name": "便签7",
"type": "n8n-nodes-base.stickyNote",
"position": [
80,
40
],
"parameters": {
"width": 580,
"height": 440,
"content": "## 🛠️ MCP 工具箱"
},
"typeVersion": 1
},
{
"id": "9d1bb515-f8fa-4d48-bbf5-c083f5efd89d",
"name": "便签8",
"type": "n8n-nodes-base.stickyNote",
"position": [
-360,
-240
],
"parameters": {
"color": 4,
"width": 300,
"height": 240,
"content": "## 👍试试我！"
},
"typeVersion": 1
},
{
"id": "b093a455-aee7-4822-b079-7d9cbac783c2",
"name": "便签1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1060,
-400
],
"parameters": {
"width": 520,
"height": 1040,
"content": "### **适用对象**"
},
"typeVersion": 1
},
{
"id": "8fb4f215-da26-43ad-b187-9b52ed6485ba",
"name": "便签2",
"type": "n8n-nodes-base.stickyNote",
"position": [
80,
-280
],
"parameters": {
"width": 580,
"height": 280,
"content": "## 🤖 带工具的 AI Agent"
},
"typeVersion": 1
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "a555f325-abd3-44bd-ac48-8b0f6910824e",
"connections": {
"gpt-4o": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Simple Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"MCP Get Brave Tools": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"MCP Execute Brave Search": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"When chat message received": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
}
}
}常见问题
如何使用这个工作流？
复制上方的 JSON 配置代码，在您的 n8n 实例中创建新工作流并选择「从 JSON 导入」，粘贴配置后根据需要修改凭证设置即可。
这个工作流适合什么场景？
中级
需要付费吗？
本工作流完全免费，您可以直接导入使用。但请注意，工作流中使用的第三方服务（如 OpenAI API）可能需要您自行付费。
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工作流信息
难度等级
中级
节点数量15
分类-
节点类型6
作者
Joseph LePage
@joeAs an AI Automation consultant based in Canada, I partner with forward-thinking organizations to implement AI solutions that streamline operations and drive growth.
外部链接
在 n8n.io 查看 →
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