Build

The Build section covers everything you need to create sophisticated conversational agents, from defining their behavior and voice to connecting external tools and knowledge sources.

Design and configure

Core components

Agent behavior

Control how your agent thinks and responds:

• Workflows: Visual workflow builder for complex conversation flows
• System Prompt: Define agent personality, tone, and capabilities
• Models: Choose from leading LLMs or bring your own
• Conversation Flow: Configure turn-taking, interruptions, and pacing

Voice & language

Customize the agent’s voice and language capabilities:

• Voice Selection: Choose from 5k+ professional voices
• Multi-voice Support: Use different voices within conversations
• Language Support: Deploy in 31+ languages
• Voice Design: Create custom voices from text descriptions

Knowledge & tools

Extend agent capabilities with external data and actions:

• Knowledge Base: Upload documents to ground agent responses
• Tools: Connect to APIs and external services
• MCP Integration: Use Model Context Protocol tools
• System Tools: Built-in capabilities like call transfer and voicemail detection

Personalization

Tailor each conversation to your users:

• Dynamic Variables: Inject runtime data into conversations
• Overrides: Customize agent behavior per interaction
• Authentication: Secure agent access with custom auth flows

Next steps