Tools Integration

Add powerful capabilities to your agents with tools

Tools in Julep extend your agents’ capabilities by allowing them to interact with external services and perform specific functions. There are several types of tools available:

Tool Types

1. User-defined Functions: Custom functions that you implement
2. System Tools: Built-in tools for interacting with Julep’s APIs
3. Integrations: Pre-built integrations with third-party services
4. Direct API Calls: Make HTTP requests to external APIs

User-defined Functions

Create custom tools that your agents can use:

// Create a custom function tool
const tool = await client.agents.tools.create(agentId, {
  name: 'calculate_discount',
  description: 'Calculate the final price after applying a discount',
  type: 'function',
  function: {
    parameters: {
      type: 'object',
      properties: {
        original_price: {
          type: 'number',
          description: 'Original price before discount'
        },
        discount_percentage: {
          type: 'number',
          description: 'Discount percentage (0-100)'
        }
      },
      required: ['original_price', 'discount_percentage']
    }
  }
});

System Tools

Use built-in tools to interact with Julep’s APIs:

// Add a system tool for listing agents
const systemTool = await client.agents.tools.create(agentId, {
  name: 'list_agent_docs',
  description: 'List all documents for the given agent',
  type: 'system',
  system: {
    resource: 'agent',
    subresource: 'doc',
    operation: 'list'
  }
});

Built-in Integrations

Julep provides several pre-built integrations:

Brave Search Integration

// Add Brave Search integration
const braveSearch = await client.agents.tools.create(agentId, {
  name: 'web_search',
  description: 'Search the web for information',
  integration: {
    provider: 'brave',
    method: 'search',
    setup: {
      api_key: process.env.BRAVE_API_KEY
    }
  }
});

Email Integration

// Add email integration
const emailTool = await client.agents.tools.create(agentId, {
  name: 'send_email',
  description: 'Send an email',
  integration: {
    provider: 'email',
    setup: {
      host: 'smtp.example.com',
      port: 587,
      user: process.env.EMAIL_USER,
      password: process.env.EMAIL_PASSWORD
    }
  }
});

Weather Integration

// Add weather integration
const weatherTool = await client.agents.tools.create(agentId, {
  name: 'check_weather',
  description: 'Get weather information',
  integration: {
    provider: 'weather',
    setup: {
      openweathermap_api_key: process.env.OPENWEATHER_API_KEY
    }
  }
});

Wikipedia Integration

// Add Wikipedia integration
const wikiTool = await client.agents.tools.create(agentId, {
  name: 'wiki_search',
  description: 'Search Wikipedia articles',
  integration: {
    provider: 'wikipedia'
  }
});

Direct API Calls

Make direct HTTP requests to external APIs:

// Add a direct API call tool
const apiTool = await client.agents.tools.create(agentId, {
  name: 'github_stars',
  description: 'Get GitHub repository stars',
  type: 'api_call',
  api_call: {
    method: 'GET',
    url: 'https://api.github.com/repos/{{owner}}/{{repo}}',
    headers: {
      Authorization: 'Bearer {{github_token}}'
    }
  }
});

Using Tools in Tasks

Once tools are added to an agent, they can be used in tasks:

const task = await client.tasks.create(agentId, {
  name: 'Research Task',
  description: 'Research a topic using multiple tools',
  main: [
    // Use web search
    {
      tool: 'web_search',
      arguments: {
        query: '{{_.topic}}'
      }
    },
    
    // Use Wikipedia
    {
      tool: 'wiki_search',
      arguments: {
        query: '{{_.topic}}'
      }
    },
    
    // Send results via email
    {
      tool: 'send_email',
      arguments: {
        to: '{{_.email}}',
        subject: 'Research Results: {{_.topic}}',
        body: '{{_.results}}'
      }
    }
  ]
});

Tool Management

// List tools for an agent
const tools = await client.agents.tools.list(agentId);

// Get a specific tool
const tool = await client.agents.tools.get(agentId, toolId);

// Update a tool
const updatedTool = await client.agents.tools.update(agentId, toolId, {
  description: 'Updated tool description'
});

// Delete a tool
await client.agents.tools.delete(agentId, toolId);

Error Handling

try {
  const tool = await client.agents.tools.create(agentId, {
    name: 'web_search',
    integration: {
      provider: 'brave',
      setup: {
        api_key: process.env.BRAVE_API_KEY
      }
    }
  });
} catch (error) {
  if (error.name === 'ValidationError') {
    console.error('Invalid tool configuration:', error.message);
  } else if (error.name === 'IntegrationError') {
    console.error('Integration setup failed:', error.message);
  } else {
    console.error('Unexpected error:', error);
  }
}

Next Steps

Advanced Usage

Learn advanced patterns and best practices

API Reference

View the complete API reference

Examples

See real-world examples

Common Patterns

Learn common integration patterns