mcp-use

To create a custom agent for interacting with an MCP server to manage user authentication, the agent should be configured to validate user credentials and generate session tokens. It should handle JSON data and integrate with the existing user database. Below is the code snippet and configuration details:

```python
import mcp

# Configuration details
config = {
    'server_url': 'https://api.mcp.example.com',
    'api_key': 'your_api_key_here',
    'database_connection': 'mongodb://localhost:27017/userdb'
}

# Create the agent
agent = mcp.Agent(config)

# Define the validation function
def validate_user(username, password):
    # Validate credentials against the database
    user = agent.db.find_one({'username': username})
    if user and user['password'] == password:
        return True
    return False

# Define the token generation function
def generate_token(username):
    # Generate a session token
    token = agent.generate_token(username)
    return token

# Example usage
username = 'john_doe'
password = 'secure_password'
if validate_user(username, password):
    token = generate_token(username)
    print(f'Session token for {username}: {token}')
else:
    print('Invalid credentials')
```

This code snippet demonstrates how to create a custom agent for managing user authentication with an MCP server. The agent is configured to validate user credentials and generate session tokens, handling JSON data and integrating with the existing user database.