Add multiple MCP tool execution support with examples and tests

examples/tools/mcp_examples/tests/test_multi_mcp_demo.py

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+import os
+import json
+from swarms import Agent
+import io
+import sys
+from contextlib import redirect_stdout
+
+print("\n=== Testing Multiple MCP Tool Execution ===\n")
+
+# Configure multiple MCP URLs
+os.environ["MCP_URLS"] = "http://localhost:8000/sse,http://localhost:9001/sse"
+
+def capture_output(func):
+    """Capture printed output from a function"""
+    f = io.StringIO()
+    with redirect_stdout(f):
+        func()
+    return f.getvalue()
+
+def test_direct_tool_execution():
+    """Test directly executing tools on different MCP servers"""
+    print("Testing direct tool execution...\n")
+    
+    agent = Agent(
+        agent_name="Multi-MCP-Agent",
+        model_name="gpt-4o-mini",
+        max_loops=1
+    )
+    
+    # Create JSON payloads for multiple tools
+    payloads = [
+        {
+            "function_name": "get_weather", 
+            "server_url": "http://localhost:8000/sse",
+            "payload": {"city": "Paris"}
+        },
+        {
+            "function_name": "get_news", 
+            "server_url": "http://localhost:9001/sse",
+            "payload": {"topic": "science"}
+        }
+    ]
+    
+    # Execute the tools and capture output
+    print("Executing tools on multiple MCP servers...")
+    output = capture_output(
+        lambda: agent.handle_multiple_mcp_tools(agent.mcp_urls, json.dumps(payloads))
+    )
+    
+    # Extract and display results
+    print("\nResults from MCP tools:")
+    print(output)
+    
+    print("\nTest complete - Multiple MCP execution successful!")
+
+def test_agent_configuration():
+    """Test different ways to configure agents with multiple MCP URLs"""
+    print("\n=== Testing Agent MCP Configuration Methods ===\n")
+    
+    # Method 1: Configure via environment variables (already set above)
+    agent1 = Agent(agent_name="Env-Config-Agent")
+    print(f"Agent1 MCP URLs (from env): {agent1.mcp_urls}")
+    
+    # Method 2: Configure via direct parameter
+    agent2 = Agent(
+        agent_name="Direct-Config-Agent",
+        mcp_urls=["http://localhost:8000/sse", "http://localhost:9001/sse"]
+    )
+    print(f"Agent2 MCP URLs (from param): {agent2.mcp_urls}")
+
+if __name__ == "__main__":
+    test_agent_configuration()
+    test_direct_tool_execution()