Voice to voice

Enhance your AI agents with natural voice interactions using the VAPI integration

In the era of advanced AI and Large Language Models (LLMs), voice interactions have reached unprecedented levels of naturalness. TIXAE Agent harnesses this technology by integrating with VAPI, a cutting-edge voice-to-voice platform, to provide your agents with lifelike conversational abilities.

Voice-to-voice technology now incorporates natural speech patterns, including filler words like “mhmm” and “ya”, making conversations feel more authentic. Users can even interrupt the AI mid-sentence, closely mimicking human-to-human interactions.

This guide will walk you through setting up your VAPI profile and enabling voice-to-voice capabilities for your TIXAE Agent.

Connecting to VAPI

1. Create a VAPI Account

   Start by creating an account on VAPI. It’s a straightforward process - simply head over to VAPI’s website.

   We love VAPI. For more detailed information, check out their documentation.

2. Create an Assistant

   Once your account is set up, create an assistant on VAPI:

   • Choose from various voice providers (e.g., Elevenlabs, Cartesia, OpenAI)
   • Select a voice that fits your agent’s persona (For instance, our agent Gia uses the “Hannah” voice from Cartesia)
   • Craft a well-formatted system prompt.
3. Obtain API Keys from VAPI

   After setting up your assistant:

   1. Navigate to your profile in the left-hand corner

   2. Go to API keys

   3. Copy both your private and public keys

4. Configure TIXAE Agent Credentials

   In TIXAE Dashboard:

   1. Go to the credentials tab
   2. Paste your VAPI private and public keys in the appropriate fields
   3. For the Default Server URL secret, go back to VAPI, find it under settings > Server URL, and paste it in TIXAE Agent’s credentials tab

   

Integrating with Your Agent

Now that you’ve set up VAPI, it’s time to enable voice capabilities for your TIXAE Agent:

1. Access Agent Channels Tab

   Choose the agent you want to set up for voice interactions and navigate to the channels tab.

2. Enable Voice Setup

   Click the Voice setup button or click connect via the voice channel.

3. Verify Configuration

   If set up correctly, you’ll see a green checkbox as shown below:

   
4. Add VAPI Assistant ID

   The last field you need to fill out is the VAPI assistant ID. You can find this in your VAPI dashboard - simply copy it from your assistant’s details.

5. Congrats

   You’ve successfully set up voice-to-voice capabilities in TIXAE Agent, offering your users or clients an innovative way to interact with your brand.

During a live conversation with the VAPI agent, the interaction is transcribed and is added to your current conversation. You can review these transcripts in the conversation tab for later.

Voice Integration Settings

The voice setup interface provides several options to customize how VAPI interacts with your agent:

Sync KB with VAPI

This option adds your agent’s entire Knowledge Base (KB) to your VAPI assistant.

• Each synced document consumes 1 credit
• TIXAE Agent will inject your KB documents into the VAPI assistant whenever changes are made to the KB

VAPI currently has a limit of 20,000 characters per document.

Sync all on save

Enable this to automatically update your VAPI assistant with changes made to your TIXAE Agent, including:

• Initial message
• Knowledgebase documents
• System prompt

Eagerly show VAPI on Load

When enabled, this option displays the VAPI popup at the start of a new conversation, asking the user if they want to talk with the AI.

See it in action:

Enable VAPI on Web

This option adds a quick upload attachment button to the TIXAE Agent template. When a file is uploaded, it triggers an intent with the file URL in Voiceflow. Read more about the voiceflow integration here.

You can customize the VAPI Web popup message in the provided input field.

Max Monthly Minutes

If you want to restrict the usage of your VAPI assistant, this can be done by setting a limit for monthly usage.