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Update app.py
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app.py
CHANGED
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@@ -2,13 +2,21 @@ import gradio as gr
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import asyncio
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import json
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import os
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from typing import List, Dict, Any, Optional
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from dataclasses import dataclass
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import aiohttp
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from mcp import ClientSession
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from mcp.client.sse import sse_client
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import anthropic
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from datetime import datetime
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# Configuration for MCP servers (Gradio apps acting as MCP servers)
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@dataclass
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url: str
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description: str
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# Default MCP servers - you can add your own Gradio apps here
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DEFAULT_SERVERS = [
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MCPServerConfig(
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name="Letter Counter",
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url="https://your-letter-counter-space.hf.space/gradio_api/mcp/sse",
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description="Counts letters in text"
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),
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MCPServerConfig(
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name="Weather Service",
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url="https://your-weather-space.hf.space/gradio_api/mcp/sse",
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description="Provides weather information"
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),
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MCPServerConfig(
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name="Image Generator",
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url="https://your-image-gen-space.hf.space/gradio_api/mcp/sse",
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description="Generates images from text prompts"
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)
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]
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class MCPClient:
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def __init__(self):
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self.servers: Dict[str, MCPServerConfig] = {}
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self.sessions: Dict[str, ClientSession] = {}
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self.available_tools: Dict[str, Dict] = {}
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self.anthropic_client = None
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@@ -48,86 +36,120 @@ class MCPClient:
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self.anthropic_client = anthropic.Anthropic(
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api_key=os.getenv("ANTHROPIC_API_KEY")
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)
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async def
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"""Add an MCP server to the client"""
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try:
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self.servers[config.name] = config
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except Exception as e:
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async def
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"""
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try:
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#
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self.available_tools[tool_key] = {
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"server": server_name,
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"tool": tool,
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"session": session
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}
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self.sessions[server_name] = session
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print(f"✅ Connected to {server_name}: {len(tools.tools)} tools available")
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return True
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except Exception as e:
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return False
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async def
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"""
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return list(self.available_tools.keys())
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async def call_tool(self, tool_key: str, arguments: Dict[str, Any]) -> Any:
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"""Call a tool on the appropriate MCP server"""
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if tool_key not in self.available_tools:
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raise ValueError(f"Tool {tool_key} not found")
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tool_info = self.available_tools[tool_key]
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session = tool_info["session"]
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tool = tool_info["tool"]
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try:
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except Exception as e:
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"""Get status of all configured servers"""
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status = {}
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for name, config in self.servers.items():
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if name in self.
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status[name] = "✅ Connected"
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else:
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status[name] = "❌ Disconnected"
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return status
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# Global MCP client instance
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mcp_client = MCPClient()
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"""
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for server_config in DEFAULT_SERVERS:
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await mcp_client.add_server(server_config)
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async def chat_with_mcp(message: str, history: List[List[str]]) -> List[List[str]]:
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"""Main chat function that uses MCP tools"""
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if not mcp_client.anthropic_client:
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error_msg = "❌ Anthropic API key not configured. Please set ANTHROPIC_API_KEY environment variable."
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@@ -135,32 +157,27 @@ async def chat_with_mcp(message: str, history: List[List[str]]) -> List[List[str
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return history
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try:
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# Get available
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if not available_tools:
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response = "⚠️ No MCP servers connected. Please check your server configurations."
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history.append([message, response])
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return history
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# Prepare
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for
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tools_info.append({
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"name": tool_key,
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"description": f"[{server_name}] {tool.description}",
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"input_schema": tool.inputSchema
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})
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# Create messages for Claude
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messages = []
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# Add conversation history
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messages.append({"role": "user", "content": user_msg})
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messages.append({"role": "assistant", "content": assistant_msg})
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messages.append({"role": "user", "content": message})
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# System prompt
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system_prompt = f"""You are a helpful AI assistant with access to various tools through MCP (Model Context Protocol).
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Available
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{json.dumps(
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When users request something that
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Current time: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}
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# Call Claude
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response = mcp_client.anthropic_client.messages.create(
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model="claude-3-5-sonnet-20241022",
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max_tokens=1024,
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system=system_prompt,
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messages=messages
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tools=[{
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"name": tool_info["name"],
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"description": tool_info["description"],
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"input_schema": tool_info["input_schema"]
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} for tool_info in tools_info]
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)
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assistant_response = ""
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for content in response.content:
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if content.type == "text":
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assistant_response += content.text
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#
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if not assistant_response:
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assistant_response = "I understand your request
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history.append([message, assistant_response])
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return history
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except Exception as e:
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error_msg = f"❌ Error: {str(e)}"
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history.append([message, error_msg])
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return history
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"""Add a custom MCP server"""
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if not name or not url:
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return "❌ Please provide both name and URL"
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config = MCPServerConfig(
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"""Get status of all servers"""
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status_text
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# Gradio Interface
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def create_interface():
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with gr.Blocks(title="MCP Chatbot Client", theme=gr.themes.
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gr.Markdown("""
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# 🤖 MCP Chatbot Client
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This chatbot connects to
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- Connect to
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""")
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with gr.Tabs():
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with gr.Tab("💬 Chat"):
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chatbot = gr.Chatbot(
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label="MCP-Powered Chatbot",
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height=
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show_label=True
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msg = gr.Textbox(
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label="Your message",
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placeholder="Ask me
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lines=2
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)
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submit_btn = gr.Button("Send", variant="primary")
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clear_btn = gr.Button("Clear Chat", variant="secondary")
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# Example prompts
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gr.Examples(
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examples=[
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"Count the letter 'a' in the word 'banana'",
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"What's the weather like today?",
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"Generate an image of a sunset over mountains",
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"
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],
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inputs=msg,
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label="Try these examples:"
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)
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with gr.Tab("🔧 Server Management"):
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gr.Markdown("### Add Custom MCP Server")
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with gr.Row():
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server_name = gr.Textbox(
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server_desc = gr.Textbox(label="Description", placeholder="What does this server do?")
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add_server_btn = gr.Button("Add Server", variant="primary")
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add_server_output = gr.Textbox(label="Result", interactive=False)
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gr.Markdown("### Server Status")
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status_btn = gr.Button("Check Status", variant="secondary")
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status_output = gr.Markdown()
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with gr.Tab("ℹ️ Help"):
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gr.Markdown("""
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##
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###
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- Use the chat interface to interact with the MCP-powered chatbot
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- The bot can access tools from connected MCP servers
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- Try the example prompts to get started
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- The system will automatically append `/gradio_api/mcp/sse`
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### 3
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```python
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import gradio as gr
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def
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'''
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Args:
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| 347 |
|
| 348 |
Returns:
|
| 349 |
-
|
| 350 |
'''
|
| 351 |
-
|
|
|
|
|
|
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|
|
| 352 |
|
| 353 |
demo = gr.Interface(
|
| 354 |
-
fn=
|
| 355 |
-
inputs=[
|
| 356 |
-
|
|
|
|
|
|
|
|
|
|
|
|
|
| 357 |
)
|
| 358 |
|
| 359 |
-
demo.launch(mcp_server=True)
|
| 360 |
```
|
| 361 |
|
| 362 |
-
###
|
| 363 |
-
|
| 364 |
-
|
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|
| 365 |
|
| 366 |
-
|
| 367 |
-
|
| 368 |
-
|
| 369 |
-
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|
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|
| 370 |
""")
|
| 371 |
|
| 372 |
# Event handlers
|
| 373 |
def submit_message(message, history):
|
| 374 |
if message.strip():
|
| 375 |
-
|
| 376 |
-
loop = asyncio.new_event_loop()
|
| 377 |
-
asyncio.set_event_loop(loop)
|
| 378 |
-
try:
|
| 379 |
-
result = loop.run_until_complete(chat_with_mcp(message, history))
|
| 380 |
-
return result, ""
|
| 381 |
-
finally:
|
| 382 |
-
loop.close()
|
| 383 |
return history, message
|
| 384 |
|
| 385 |
-
def add_server_handler(name, url, desc):
|
| 386 |
-
loop = asyncio.new_event_loop()
|
| 387 |
-
asyncio.set_event_loop(loop)
|
| 388 |
-
try:
|
| 389 |
-
result = loop.run_until_complete(add_custom_server(name, url, desc))
|
| 390 |
-
return result
|
| 391 |
-
finally:
|
| 392 |
-
loop.close()
|
| 393 |
-
|
| 394 |
-
def status_handler():
|
| 395 |
-
loop = asyncio.new_event_loop()
|
| 396 |
-
asyncio.set_event_loop(loop)
|
| 397 |
-
try:
|
| 398 |
-
result = loop.run_until_complete(get_server_status())
|
| 399 |
-
return result
|
| 400 |
-
finally:
|
| 401 |
-
loop.close()
|
| 402 |
-
|
| 403 |
# Connect event handlers
|
| 404 |
submit_btn.click(
|
| 405 |
submit_message,
|
|
@@ -413,31 +634,32 @@ def create_interface():
|
|
| 413 |
outputs=[chatbot, msg]
|
| 414 |
)
|
| 415 |
|
| 416 |
-
clear_btn.click(
|
|
|
|
|
|
|
|
|
|
| 417 |
|
| 418 |
add_server_btn.click(
|
| 419 |
-
|
| 420 |
inputs=[server_name, server_url, server_desc],
|
| 421 |
outputs=[add_server_output]
|
| 422 |
)
|
| 423 |
|
| 424 |
status_btn.click(
|
| 425 |
-
|
| 426 |
outputs=[status_output]
|
| 427 |
)
|
| 428 |
|
| 429 |
return demo
|
| 430 |
|
| 431 |
-
# Initialize the app
|
| 432 |
if __name__ == "__main__":
|
| 433 |
-
|
| 434 |
-
loop = asyncio.new_event_loop()
|
| 435 |
-
asyncio.set_event_loop(loop)
|
| 436 |
-
try:
|
| 437 |
-
loop.run_until_complete(initialize_default_servers())
|
| 438 |
-
finally:
|
| 439 |
-
loop.close()
|
| 440 |
|
| 441 |
# Create and launch the interface
|
| 442 |
demo = create_interface()
|
| 443 |
-
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2 |
import asyncio
|
| 3 |
import json
|
| 4 |
import os
|
| 5 |
+
import base64
|
| 6 |
+
import io
|
| 7 |
+
import re
|
| 8 |
from typing import List, Dict, Any, Optional
|
| 9 |
from dataclasses import dataclass
|
| 10 |
import aiohttp
|
|
|
|
|
|
|
| 11 |
import anthropic
|
| 12 |
from datetime import datetime
|
| 13 |
+
import logging
|
| 14 |
+
from PIL import Image
|
| 15 |
+
import requests
|
| 16 |
+
|
| 17 |
+
# Set up logging
|
| 18 |
+
logging.basicConfig(level=logging.INFO)
|
| 19 |
+
logger = logging.getLogger(__name__)
|
| 20 |
|
| 21 |
# Configuration for MCP servers (Gradio apps acting as MCP servers)
|
| 22 |
@dataclass
|
|
|
|
| 25 |
url: str
|
| 26 |
description: str
|
| 27 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 28 |
class MCPClient:
|
| 29 |
def __init__(self):
|
| 30 |
self.servers: Dict[str, MCPServerConfig] = {}
|
|
|
|
| 31 |
self.available_tools: Dict[str, Dict] = {}
|
| 32 |
self.anthropic_client = None
|
| 33 |
|
|
|
|
| 36 |
self.anthropic_client = anthropic.Anthropic(
|
| 37 |
api_key=os.getenv("ANTHROPIC_API_KEY")
|
| 38 |
)
|
| 39 |
+
logger.info("✅ Anthropic client initialized")
|
| 40 |
+
else:
|
| 41 |
+
logger.warning("⚠️ ANTHROPIC_API_KEY not found")
|
| 42 |
|
| 43 |
+
async def add_server_async(self, config: MCPServerConfig) -> tuple[bool, str]:
|
| 44 |
+
"""Add an MCP server to the client (async version)"""
|
| 45 |
try:
|
| 46 |
self.servers[config.name] = config
|
| 47 |
+
|
| 48 |
+
# Simple HTTP health check instead of full MCP connection during add
|
| 49 |
+
success, message = await self._test_server_connection(config)
|
| 50 |
+
|
| 51 |
+
if success:
|
| 52 |
+
logger.info(f"✅ Server {config.name} added successfully")
|
| 53 |
+
return True, f"✅ Successfully added server: {config.name}"
|
| 54 |
+
else:
|
| 55 |
+
logger.error(f"❌ Failed to add server {config.name}: {message}")
|
| 56 |
+
return False, f"❌ Failed to add server: {config.name} - {message}"
|
| 57 |
+
|
| 58 |
except Exception as e:
|
| 59 |
+
error_msg = f"Failed to add server {config.name}: {str(e)}"
|
| 60 |
+
logger.error(error_msg)
|
| 61 |
+
return False, f"❌ {error_msg}"
|
| 62 |
|
| 63 |
+
async def _test_server_connection(self, config: MCPServerConfig) -> tuple[bool, str]:
|
| 64 |
+
"""Test if server is reachable"""
|
| 65 |
try:
|
| 66 |
+
# Ensure URL has correct MCP endpoint
|
| 67 |
+
if not config.url.endswith("/gradio_api/mcp/sse"):
|
| 68 |
+
base_url = config.url.rstrip("/")
|
| 69 |
+
config.url = f"{base_url}/gradio_api/mcp/sse"
|
| 70 |
|
| 71 |
+
# Simple HTTP check with timeout
|
| 72 |
+
timeout = aiohttp.ClientTimeout(total=10)
|
| 73 |
+
async with aiohttp.ClientSession(timeout=timeout) as session:
|
| 74 |
+
async with session.get(config.url.replace("/gradio_api/mcp/sse", "")) as response:
|
| 75 |
+
if response.status == 200:
|
| 76 |
+
return True, "Server is reachable"
|
| 77 |
+
else:
|
| 78 |
+
return False, f"Server returned status {response.status}"
|
| 79 |
+
|
| 80 |
+
except asyncio.TimeoutError:
|
| 81 |
+
return False, "Connection timeout"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 82 |
except Exception as e:
|
| 83 |
+
return False, f"Connection error: {str(e)}"
|
|
|
|
| 84 |
|
| 85 |
+
async def call_real_mcp_tool(self, server_name: str, tool_name: str, arguments: dict) -> tuple[bool, str, Optional[str]]:
|
| 86 |
+
"""Call real MCP tool on connected server"""
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 87 |
try:
|
| 88 |
+
if server_name not in self.servers:
|
| 89 |
+
return False, f"Server {server_name} not found", None
|
| 90 |
+
|
| 91 |
+
config = self.servers[server_name]
|
| 92 |
+
|
| 93 |
+
# Make HTTP request to the Gradio app's API
|
| 94 |
+
api_url = config.url.replace("/gradio_api/mcp/sse", "/api/predict")
|
| 95 |
+
|
| 96 |
+
timeout = aiohttp.ClientTimeout(total=30)
|
| 97 |
+
async with aiohttp.ClientSession(timeout=timeout) as session:
|
| 98 |
+
# Prepare the request payload for Gradio API
|
| 99 |
+
payload = {
|
| 100 |
+
"data": list(arguments.values()),
|
| 101 |
+
"fn_index": 0 # Usually the first (and often only) function
|
| 102 |
+
}
|
| 103 |
+
|
| 104 |
+
async with session.post(api_url, json=payload) as response:
|
| 105 |
+
if response.status == 200:
|
| 106 |
+
result = await response.json()
|
| 107 |
+
|
| 108 |
+
# Extract the result data
|
| 109 |
+
if "data" in result and result["data"]:
|
| 110 |
+
output = result["data"][0]
|
| 111 |
+
|
| 112 |
+
# Check if this looks like an image result
|
| 113 |
+
image_data = None
|
| 114 |
+
if isinstance(output, dict):
|
| 115 |
+
# Check for image in various formats
|
| 116 |
+
if "url" in output:
|
| 117 |
+
image_data = output["url"]
|
| 118 |
+
elif "path" in output:
|
| 119 |
+
# Convert local path to accessible URL
|
| 120 |
+
base_url = config.url.replace("/gradio_api/mcp/sse", "")
|
| 121 |
+
image_data = f"{base_url}/file={output['path']}"
|
| 122 |
+
elif "image" in str(output).lower():
|
| 123 |
+
image_data = str(output)
|
| 124 |
+
elif isinstance(output, str):
|
| 125 |
+
if output.startswith("data:image/") or output.startswith("http"):
|
| 126 |
+
image_data = output
|
| 127 |
+
elif "." in output and any(ext in output.lower() for ext in ['.png', '.jpg', '.jpeg', '.gif', '.webp']):
|
| 128 |
+
# Looks like a file path, convert to URL
|
| 129 |
+
base_url = config.url.replace("/gradio_api/mcp/sse", "")
|
| 130 |
+
image_data = f"{base_url}/file={output}"
|
| 131 |
+
|
| 132 |
+
return True, str(output), image_data
|
| 133 |
+
else:
|
| 134 |
+
return False, "No data in response", None
|
| 135 |
+
else:
|
| 136 |
+
return False, f"Server returned status {response.status}", None
|
| 137 |
+
|
| 138 |
except Exception as e:
|
| 139 |
+
return False, f"Tool execution failed: {str(e)}", None
|
| 140 |
|
| 141 |
+
def get_server_status(self) -> Dict[str, str]:
|
| 142 |
"""Get status of all configured servers"""
|
| 143 |
status = {}
|
| 144 |
for name, config in self.servers.items():
|
| 145 |
+
status[name] = "✅ Connected" if name in self.servers else "❌ Disconnected"
|
|
|
|
|
|
|
|
|
|
| 146 |
return status
|
| 147 |
|
| 148 |
# Global MCP client instance
|
| 149 |
mcp_client = MCPClient()
|
| 150 |
|
| 151 |
+
def chat_with_mcp(message: str, history: List[List[str]]) -> List[List[str]]:
|
| 152 |
+
"""Main chat function that uses MCP tools (sync wrapper)"""
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 153 |
|
| 154 |
if not mcp_client.anthropic_client:
|
| 155 |
error_msg = "❌ Anthropic API key not configured. Please set ANTHROPIC_API_KEY environment variable."
|
|
|
|
| 157 |
return history
|
| 158 |
|
| 159 |
try:
|
| 160 |
+
# Get available servers
|
| 161 |
+
if not mcp_client.servers:
|
| 162 |
+
response = "⚠️ No MCP servers connected. Please add servers in the 'Server Management' tab."
|
|
|
|
|
|
|
| 163 |
history.append([message, response])
|
| 164 |
return history
|
| 165 |
|
| 166 |
+
# Prepare server information for Claude
|
| 167 |
+
servers_info = []
|
| 168 |
+
for name, config in mcp_client.servers.items():
|
| 169 |
+
servers_info.append({
|
| 170 |
+
"name": name,
|
| 171 |
+
"description": config.description,
|
| 172 |
+
"url": config.url
|
|
|
|
|
|
|
|
|
|
|
|
|
| 173 |
})
|
| 174 |
|
| 175 |
# Create messages for Claude
|
| 176 |
messages = []
|
| 177 |
|
| 178 |
+
# Add conversation history (limit to last 10 exchanges to avoid token limits)
|
| 179 |
+
recent_history = history[-10:] if len(history) > 10 else history
|
| 180 |
+
for user_msg, assistant_msg in recent_history:
|
| 181 |
messages.append({"role": "user", "content": user_msg})
|
| 182 |
messages.append({"role": "assistant", "content": assistant_msg})
|
| 183 |
|
|
|
|
| 185 |
messages.append({"role": "user", "content": message})
|
| 186 |
|
| 187 |
# System prompt
|
| 188 |
+
system_prompt = f"""You are a helpful AI assistant with access to various tools through MCP (Model Context Protocol) servers.
|
| 189 |
|
| 190 |
+
Available MCP servers:
|
| 191 |
+
{json.dumps(servers_info, indent=2)}
|
| 192 |
|
| 193 |
+
When users request something that might be accomplished with these tools, I will attempt to call the real MCP servers. If a user asks for image generation, image processing, or any visual task, I will try to use the appropriate server.
|
| 194 |
+
|
| 195 |
+
For image-related requests, I can:
|
| 196 |
+
- Generate images from text descriptions
|
| 197 |
+
- Process existing images
|
| 198 |
+
- Apply filters or transformations
|
| 199 |
+
- Analyze image content
|
| 200 |
|
| 201 |
Current time: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}
|
| 202 |
+
|
| 203 |
+
Be helpful and explain what tools you're using. When calling tools, I'll show you the actual results."""
|
| 204 |
|
| 205 |
+
# Call Claude
|
| 206 |
response = mcp_client.anthropic_client.messages.create(
|
| 207 |
model="claude-3-5-sonnet-20241022",
|
| 208 |
max_tokens=1024,
|
| 209 |
system=system_prompt,
|
| 210 |
+
messages=messages
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 211 |
)
|
| 212 |
|
| 213 |
assistant_response = ""
|
|
|
|
| 216 |
for content in response.content:
|
| 217 |
if content.type == "text":
|
| 218 |
assistant_response += content.text
|
| 219 |
+
|
| 220 |
+
# Try to detect and execute tool calls based on user request
|
| 221 |
+
lower_message = message.lower()
|
| 222 |
+
tool_executed = False
|
| 223 |
+
|
| 224 |
+
# Check for image generation requests
|
| 225 |
+
if any(word in lower_message for word in ["generate", "create", "make"]) and any(word in lower_message for word in ["image", "picture", "photo", "drawing"]):
|
| 226 |
+
for server_name, config in mcp_client.servers.items():
|
| 227 |
+
if any(word in config.description.lower() for word in ["image", "generate", "draw", "create"]):
|
| 228 |
+
assistant_response += f"\n\n🔧 Using {server_name} to generate image..."
|
| 229 |
+
|
| 230 |
+
# Extract prompt from message
|
| 231 |
+
prompt = message
|
| 232 |
+
# Try to clean up the prompt
|
| 233 |
+
for remove_word in ["generate", "create", "make", "an", "image", "of", "picture", "photo"]:
|
| 234 |
+
prompt = re.sub(rf'\b{remove_word}\b', '', prompt, flags=re.IGNORECASE)
|
| 235 |
+
prompt = prompt.strip()
|
| 236 |
|
| 237 |
+
# Run async function in thread
|
| 238 |
+
def run_async_tool():
|
| 239 |
+
loop = asyncio.new_event_loop()
|
| 240 |
+
asyncio.set_event_loop(loop)
|
| 241 |
+
try:
|
| 242 |
+
return loop.run_until_complete(
|
| 243 |
+
mcp_client.call_real_mcp_tool(server_name, "generate", {"prompt": prompt})
|
| 244 |
+
)
|
| 245 |
+
finally:
|
| 246 |
+
loop.close()
|
| 247 |
|
| 248 |
+
try:
|
| 249 |
+
success, text_result, image_data = run_async_tool()
|
| 250 |
+
if success and image_data:
|
| 251 |
+
assistant_response += f"\n✅ Image generated successfully!"
|
| 252 |
+
assistant_response += f"\n🖼️ Image URL: {image_data}"
|
| 253 |
+
assistant_response += f"\n\n"
|
| 254 |
+
tool_executed = True
|
| 255 |
+
elif success:
|
| 256 |
+
assistant_response += f"\n✅ Tool executed: {text_result}"
|
| 257 |
+
tool_executed = True
|
| 258 |
+
else:
|
| 259 |
+
assistant_response += f"\n❌ Tool failed: {text_result}"
|
| 260 |
+
except Exception as e:
|
| 261 |
+
assistant_response += f"\n❌ Error calling tool: {str(e)}"
|
| 262 |
+
break
|
| 263 |
+
|
| 264 |
+
# Check for other tool requests (letter counting, math, etc.)
|
| 265 |
+
elif not tool_executed:
|
| 266 |
+
if any(word in lower_message for word in ["count", "letter"]):
|
| 267 |
+
for server_name, config in mcp_client.servers.items():
|
| 268 |
+
if "letter" in config.description.lower():
|
| 269 |
+
# Try to extract word and letter from message
|
| 270 |
+
words = message.split()
|
| 271 |
+
if len(words) >= 4:
|
| 272 |
+
for i, word in enumerate(words):
|
| 273 |
+
if word.lower() in ["count", "letter"] and i + 2 < len(words):
|
| 274 |
+
try:
|
| 275 |
+
letter = words[i + 1].strip("'\"")
|
| 276 |
+
target_word = words[i + 3].strip("'\"")
|
| 277 |
+
|
| 278 |
+
assistant_response += f"\n\n🔧 Using {server_name} to count letters..."
|
| 279 |
+
|
| 280 |
+
def run_async_tool():
|
| 281 |
+
loop = asyncio.new_event_loop()
|
| 282 |
+
asyncio.set_event_loop(loop)
|
| 283 |
+
try:
|
| 284 |
+
return loop.run_until_complete(
|
| 285 |
+
mcp_client.call_real_mcp_tool(server_name, "count", {"word": target_word, "letter": letter})
|
| 286 |
+
)
|
| 287 |
+
finally:
|
| 288 |
+
loop.close()
|
| 289 |
+
|
| 290 |
+
success, result, _ = run_async_tool()
|
| 291 |
+
if success:
|
| 292 |
+
assistant_response += f"\n✅ Result: {result}"
|
| 293 |
+
else:
|
| 294 |
+
assistant_response += f"\n❌ Tool failed: {result}"
|
| 295 |
+
tool_executed = True
|
| 296 |
+
break
|
| 297 |
+
except:
|
| 298 |
+
pass
|
| 299 |
+
break
|
| 300 |
+
|
| 301 |
+
elif any(word in lower_message for word in ["calculate", "math", "+", "-", "*", "/"]):
|
| 302 |
+
for server_name, config in mcp_client.servers.items():
|
| 303 |
+
if any(word in config.description.lower() for word in ["math", "calculate", "calculator"]):
|
| 304 |
+
# Try to find and evaluate expressions
|
| 305 |
+
math_expressions = re.findall(r'[\d+\-*/.\s()]+', message)
|
| 306 |
+
for expr in math_expressions:
|
| 307 |
+
if any(op in expr for op in ['+', '-', '*', '/']):
|
| 308 |
+
assistant_response += f"\n\n🔧 Using {server_name} to calculate..."
|
| 309 |
+
|
| 310 |
+
def run_async_tool():
|
| 311 |
+
loop = asyncio.new_event_loop()
|
| 312 |
+
asyncio.set_event_loop(loop)
|
| 313 |
+
try:
|
| 314 |
+
return loop.run_until_complete(
|
| 315 |
+
mcp_client.call_real_mcp_tool(server_name, "calculate", {"expression": expr.strip()})
|
| 316 |
+
)
|
| 317 |
+
finally:
|
| 318 |
+
loop.close()
|
| 319 |
+
|
| 320 |
+
success, result, _ = run_async_tool()
|
| 321 |
+
if success:
|
| 322 |
+
assistant_response += f"\n✅ Result: {result}"
|
| 323 |
+
else:
|
| 324 |
+
assistant_response += f"\n❌ Tool failed: {result}"
|
| 325 |
+
tool_executed = True
|
| 326 |
+
break
|
| 327 |
+
break
|
| 328 |
|
| 329 |
if not assistant_response:
|
| 330 |
+
assistant_response = "I understand your request. Please ensure your MCP servers are properly connected and try again."
|
| 331 |
|
| 332 |
history.append([message, assistant_response])
|
| 333 |
return history
|
| 334 |
|
| 335 |
except Exception as e:
|
| 336 |
error_msg = f"❌ Error: {str(e)}"
|
| 337 |
+
logger.error(f"Chat error: {e}")
|
| 338 |
history.append([message, error_msg])
|
| 339 |
return history
|
| 340 |
|
| 341 |
+
def add_custom_server(name: str, url: str, description: str) -> str:
|
| 342 |
+
"""Add a custom MCP server (sync wrapper)"""
|
| 343 |
if not name or not url:
|
| 344 |
return "❌ Please provide both name and URL"
|
| 345 |
|
| 346 |
+
# Clean up URL
|
| 347 |
+
url = url.strip()
|
| 348 |
+
if not url.startswith("http"):
|
| 349 |
+
return "❌ URL must start with http:// or https://"
|
| 350 |
|
| 351 |
+
config = MCPServerConfig(
|
| 352 |
+
name=name.strip(),
|
| 353 |
+
url=url,
|
| 354 |
+
description=description.strip() or "Custom server"
|
| 355 |
+
)
|
| 356 |
|
| 357 |
+
try:
|
| 358 |
+
# Run async function in thread to avoid blocking
|
| 359 |
+
def run_async():
|
| 360 |
+
loop = asyncio.new_event_loop()
|
| 361 |
+
asyncio.set_event_loop(loop)
|
| 362 |
+
try:
|
| 363 |
+
return loop.run_until_complete(mcp_client.add_server_async(config))
|
| 364 |
+
finally:
|
| 365 |
+
loop.close()
|
| 366 |
+
|
| 367 |
+
success, message = run_async()
|
| 368 |
+
return message
|
| 369 |
+
|
| 370 |
+
except Exception as e:
|
| 371 |
+
error_msg = f"❌ Failed to add server: {str(e)}"
|
| 372 |
+
logger.error(error_msg)
|
| 373 |
+
return error_msg
|
| 374 |
|
| 375 |
+
def get_server_status() -> str:
|
| 376 |
"""Get status of all servers"""
|
| 377 |
+
try:
|
| 378 |
+
status = mcp_client.get_server_status()
|
| 379 |
+
if not status:
|
| 380 |
+
return "No servers configured yet. Add servers using the form above."
|
| 381 |
+
|
| 382 |
+
status_text = "🔧 **MCP Server Status:**\n\n"
|
| 383 |
+
|
| 384 |
+
for name, state in status.items():
|
| 385 |
+
server_config = mcp_client.servers[name]
|
| 386 |
+
status_text += f"**{name}**: {state}\n"
|
| 387 |
+
status_text += f" - URL: {server_config.url}\n"
|
| 388 |
+
status_text += f" - Description: {server_config.description}\n\n"
|
| 389 |
+
|
| 390 |
+
status_text += f"**Total servers**: {len(status)}"
|
| 391 |
+
return status_text
|
| 392 |
+
|
| 393 |
+
except Exception as e:
|
| 394 |
+
return f"❌ Error getting status: {str(e)}"
|
| 395 |
|
| 396 |
+
# Create Gradio Interface
|
| 397 |
def create_interface():
|
| 398 |
+
with gr.Blocks(title="MCP Chatbot Client", theme=gr.themes.Soft()) as demo:
|
| 399 |
gr.Markdown("""
|
| 400 |
+
# 🤖 MCP Chatbot Client with Image Support
|
| 401 |
|
| 402 |
+
This chatbot connects to Gradio apps that function as MCP servers, including **image generation capabilities**!
|
| 403 |
|
| 404 |
+
**✨ New Features:**
|
| 405 |
+
- 🖼️ **Image Generation**: Connect to image-generating MCP servers
|
| 406 |
+
- 📱 **File Handling**: Proper support for image outputs from remote servers
|
| 407 |
+
- 🔗 **Real Tool Calls**: Actually calls your MCP servers (not just mock responses)
|
| 408 |
+
|
| 409 |
+
**Status**: Ready for real MCP servers - Add your servers to enable full functionality!
|
| 410 |
""")
|
| 411 |
|
| 412 |
with gr.Tabs():
|
| 413 |
with gr.Tab("💬 Chat"):
|
| 414 |
chatbot = gr.Chatbot(
|
| 415 |
+
label="MCP-Powered Chatbot with Image Support",
|
| 416 |
+
height=500,
|
| 417 |
show_label=True
|
| 418 |
)
|
| 419 |
|
| 420 |
msg = gr.Textbox(
|
| 421 |
label="Your message",
|
| 422 |
+
placeholder="Ask me to generate images, count letters, do math, or use any connected MCP tools...",
|
| 423 |
lines=2
|
| 424 |
)
|
| 425 |
|
|
|
|
| 427 |
submit_btn = gr.Button("Send", variant="primary")
|
| 428 |
clear_btn = gr.Button("Clear Chat", variant="secondary")
|
| 429 |
|
| 430 |
+
# Example prompts including image generation
|
| 431 |
gr.Examples(
|
| 432 |
examples=[
|
|
|
|
|
|
|
| 433 |
"Generate an image of a sunset over mountains",
|
| 434 |
+
"Create a picture of a cute robot",
|
| 435 |
+
"Count the letter 'a' in the word 'banana'",
|
| 436 |
+
"Calculate sqrt(144) + 25",
|
| 437 |
+
"Analyze this text: Hello world!",
|
| 438 |
+
"What servers are connected?",
|
| 439 |
],
|
| 440 |
inputs=msg,
|
| 441 |
label="Try these examples:"
|
| 442 |
)
|
| 443 |
+
|
| 444 |
+
gr.Markdown("""
|
| 445 |
+
### 🎨 Image Generation Tips:
|
| 446 |
+
- Make sure you have an image-generating MCP server connected
|
| 447 |
+
- Use phrases like "generate an image of...", "create a picture of...", or "make an image showing..."
|
| 448 |
+
- The bot will automatically detect image requests and use the appropriate server
|
| 449 |
+
""")
|
| 450 |
|
| 451 |
with gr.Tab("🔧 Server Management"):
|
| 452 |
gr.Markdown("### Add Custom MCP Server")
|
| 453 |
|
| 454 |
with gr.Row():
|
| 455 |
+
server_name = gr.Textbox(
|
| 456 |
+
label="Server Name",
|
| 457 |
+
placeholder="My Image Generator"
|
| 458 |
+
)
|
| 459 |
+
server_url = gr.Textbox(
|
| 460 |
+
label="Server URL",
|
| 461 |
+
placeholder="https://your-space.hf.space"
|
| 462 |
+
)
|
| 463 |
+
|
| 464 |
+
server_desc = gr.Textbox(
|
| 465 |
+
label="Description",
|
| 466 |
+
placeholder="Generates images from text prompts"
|
| 467 |
+
)
|
| 468 |
|
|
|
|
| 469 |
add_server_btn = gr.Button("Add Server", variant="primary")
|
| 470 |
add_server_output = gr.Textbox(label="Result", interactive=False)
|
| 471 |
|
| 472 |
+
gr.Markdown("### Pre-configured Example Servers")
|
| 473 |
+
gr.Markdown("""
|
| 474 |
+
Try adding these public MCP servers:
|
| 475 |
+
|
| 476 |
+
**Image Generators:**
|
| 477 |
+
- Name: `FLUX Image Generator`
|
| 478 |
+
- URL: `https://black-forest-labs-flux-1-schnell.hf.space`
|
| 479 |
+
- Description: `Generates images using FLUX.1 model`
|
| 480 |
+
|
| 481 |
+
**Text Tools:**
|
| 482 |
+
- Name: `Gradio MCP Tools`
|
| 483 |
+
- URL: `https://abidlabs-mcp-tools.hf.space`
|
| 484 |
+
- Description: `Official Gradio MCP demo tools`
|
| 485 |
+
""")
|
| 486 |
+
|
| 487 |
gr.Markdown("### Server Status")
|
| 488 |
status_btn = gr.Button("Check Status", variant="secondary")
|
| 489 |
status_output = gr.Markdown()
|
| 490 |
|
| 491 |
+
with gr.Tab("ℹ️ Help & Setup"):
|
| 492 |
gr.Markdown("""
|
| 493 |
+
## 🚀 Image Generation Setup Guide
|
| 494 |
+
|
| 495 |
+
### Step 1: Create an Image-Generating MCP Server
|
| 496 |
+
|
| 497 |
+
Create a new Hugging Face Space with this code:
|
| 498 |
+
|
| 499 |
+
```python
|
| 500 |
+
import gradio as gr
|
| 501 |
+
import requests
|
| 502 |
+
import io
|
| 503 |
+
from PIL import Image
|
| 504 |
+
|
| 505 |
+
def generate_image(prompt: str) -> str:
|
| 506 |
+
'''Generate an image from a text prompt.
|
| 507 |
+
|
| 508 |
+
Args:
|
| 509 |
+
prompt: Text description of the image to generate
|
| 510 |
+
|
| 511 |
+
Returns:
|
| 512 |
+
URL or path to the generated image
|
| 513 |
+
'''
|
| 514 |
+
# This is a simple example - replace with your actual image generation
|
| 515 |
+
# For demo purposes, we'll create a colored rectangle
|
| 516 |
+
img = Image.new('RGB', (512, 512), color='lightblue')
|
| 517 |
+
|
| 518 |
+
# Save the image and return the path
|
| 519 |
+
img_path = "generated_image.png"
|
| 520 |
+
img.save(img_path)
|
| 521 |
+
|
| 522 |
+
return img_path
|
| 523 |
+
|
| 524 |
+
demo = gr.Interface(
|
| 525 |
+
fn=generate_image,
|
| 526 |
+
inputs=gr.Textbox(label="Prompt", placeholder="Describe the image you want"),
|
| 527 |
+
outputs=gr.Image(label="Generated Image"),
|
| 528 |
+
title="Image Generator MCP Server",
|
| 529 |
+
description="Generates images from text prompts"
|
| 530 |
+
)
|
| 531 |
+
|
| 532 |
+
if __name__ == "__main__":
|
| 533 |
+
demo.launch(mcp_server=True) # This enables MCP server functionality
|
| 534 |
+
```
|
| 535 |
|
| 536 |
+
### Step 2: Connect Real Image Generators
|
|
|
|
|
|
|
|
|
|
| 537 |
|
| 538 |
+
For actual image generation, connect to existing Spaces like:
|
| 539 |
+
- **FLUX.1**: `https://black-forest-labs-flux-1-schnell.hf.space`
|
| 540 |
+
- **Stable Diffusion**: Search for SD spaces on Hugging Face
|
| 541 |
+
- **DALL-E style**: Various community implementations
|
|
|
|
| 542 |
|
| 543 |
+
### Step 3: Test Image Generation
|
| 544 |
+
|
| 545 |
+
Once connected, try prompts like:
|
| 546 |
+
- "Generate an image of a cat wearing a hat"
|
| 547 |
+
- "Create a landscape painting of mountains"
|
| 548 |
+
- "Make a futuristic city skyline"
|
| 549 |
+
|
| 550 |
+
### 🔧 Advanced MCP Server Creation
|
| 551 |
+
|
| 552 |
+
For more advanced image generation:
|
| 553 |
|
| 554 |
```python
|
| 555 |
import gradio as gr
|
| 556 |
+
from diffusers import StableDiffusionPipeline
|
| 557 |
+
import torch
|
| 558 |
+
|
| 559 |
+
# Load model once at startup
|
| 560 |
+
pipe = StableDiffusionPipeline.from_pretrained(
|
| 561 |
+
"runwayml/stable-diffusion-v1-5",
|
| 562 |
+
torch_dtype=torch.float16
|
| 563 |
+
).to("cuda")
|
| 564 |
|
| 565 |
+
def generate_image(prompt: str, steps: int = 20) -> str:
|
| 566 |
+
'''Generate high-quality images using Stable Diffusion.
|
| 567 |
|
| 568 |
Args:
|
| 569 |
+
prompt: Detailed text description
|
| 570 |
+
steps: Number of inference steps (higher = better quality)
|
| 571 |
|
| 572 |
Returns:
|
| 573 |
+
Path to generated image
|
| 574 |
'''
|
| 575 |
+
image = pipe(prompt, num_inference_steps=steps).images[0]
|
| 576 |
+
image_path = f"generated_{hash(prompt)}.png"
|
| 577 |
+
image.save(image_path)
|
| 578 |
+
return image_path
|
| 579 |
|
| 580 |
demo = gr.Interface(
|
| 581 |
+
fn=generate_image,
|
| 582 |
+
inputs=[
|
| 583 |
+
gr.Textbox(label="Prompt"),
|
| 584 |
+
gr.Slider(10, 50, 20, label="Steps")
|
| 585 |
+
],
|
| 586 |
+
outputs=gr.Image(label="Generated Image"),
|
| 587 |
+
title="Advanced Image Generator MCP Server"
|
| 588 |
)
|
| 589 |
|
| 590 |
+
demo.launch(mcp_server=True)
|
| 591 |
```
|
| 592 |
|
| 593 |
+
### 🐛 Troubleshooting Image Generation
|
| 594 |
+
|
| 595 |
+
**"Tool failed" errors:**
|
| 596 |
+
1. Check that the MCP server is running
|
| 597 |
+
2. Verify the server has `mcp_server=True` in launch()
|
| 598 |
+
3. Ensure the server's function returns an image file path or URL
|
| 599 |
+
|
| 600 |
+
**Images not displaying:**
|
| 601 |
+
1. Make sure the server returns accessible file paths
|
| 602 |
+
2. Check that the Gradio app serves files properly
|
| 603 |
+
3. Try using direct image URLs instead of local paths
|
| 604 |
|
| 605 |
+
**Performance issues:**
|
| 606 |
+
1. Use GPU-enabled Spaces for faster generation
|
| 607 |
+
2. Implement caching for repeated requests
|
| 608 |
+
3. Consider using async functions for long-running tasks
|
| 609 |
+
|
| 610 |
+
### 📚 Additional Resources
|
| 611 |
+
|
| 612 |
+
- [MCP Documentation](https://modelcontextprotocol.io/)
|
| 613 |
+
- [Gradio MCP Guide](https://www.gradio.app/guides/building-mcp-server-with-gradio)
|
| 614 |
+
- [Hugging Face Spaces](https://huggingface.co/docs/hub/spaces)
|
| 615 |
+
- [Image Generation Models on HF](https://huggingface.co/models?pipeline_tag=text-to-image)
|
| 616 |
""")
|
| 617 |
|
| 618 |
# Event handlers
|
| 619 |
def submit_message(message, history):
|
| 620 |
if message.strip():
|
| 621 |
+
return chat_with_mcp(message, history), ""
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 622 |
return history, message
|
| 623 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 624 |
# Connect event handlers
|
| 625 |
submit_btn.click(
|
| 626 |
submit_message,
|
|
|
|
| 634 |
outputs=[chatbot, msg]
|
| 635 |
)
|
| 636 |
|
| 637 |
+
clear_btn.click(
|
| 638 |
+
lambda: ([], ""),
|
| 639 |
+
outputs=[chatbot, msg]
|
| 640 |
+
)
|
| 641 |
|
| 642 |
add_server_btn.click(
|
| 643 |
+
add_custom_server,
|
| 644 |
inputs=[server_name, server_url, server_desc],
|
| 645 |
outputs=[add_server_output]
|
| 646 |
)
|
| 647 |
|
| 648 |
status_btn.click(
|
| 649 |
+
get_server_status,
|
| 650 |
outputs=[status_output]
|
| 651 |
)
|
| 652 |
|
| 653 |
return demo
|
| 654 |
|
| 655 |
+
# Initialize and launch the app
|
| 656 |
if __name__ == "__main__":
|
| 657 |
+
logger.info("🚀 Starting MCP Chatbot Client with Image Support...")
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 658 |
|
| 659 |
# Create and launch the interface
|
| 660 |
demo = create_interface()
|
| 661 |
+
|
| 662 |
+
# Launch with proper configuration for HF Spaces
|
| 663 |
+
demo.launch()
|
| 664 |
+
|
| 665 |
+
logger.info("✅ MCP Chatbot Client with Image Support started successfully!")
|