Voiceflow Integration

Voiceflow is a collaborative platform for designing, prototyping, and building conversational AI experiences for chat and voice interfaces. It supports custom AI model providers.

Voiceflow's AI features support custom endpoints for model access.

Prerequisites

An LLM API account with an API key
Voiceflow installed or accessible

Setup

Get Your LLM API Key

Log in to your LLM API dashboard
Click Create Key to Start
Copy your new API key immediately — it will only be shown once
Store the key securely (e.g., in a password manager or .env file)

LLM API is an OpenAI-compatible gateway that gives you access to dozens of AI models through a single API key and endpoint.

Configure LLM API in Voiceflow

Open Voiceflow and navigate to your project.
Go to Integrations → AI Model Settings.
Select "Custom" or "OpenAI Compatible".
Enter:
- API Key: paste the key you copied from app.llmapi.ai/api-keys
- Base URL: https://api.llmapi.ai/v1
Select the model.
Click "Save".

Test the Integration

Verify that Voiceflow can successfully communicate with LLM API by sending a test request. All requests will now be routed through LLM API.

Voiceflow's AI Response steps can leverage powerful LLM API models for natural conversations.

Benefits of Using LLM API with Voiceflow

Multi-Provider Access: Use models from OpenAI, Anthropic, Google, and more through a single API
Cost Control: Track and limit your AI spending with detailed usage analytics
Unified Billing: One account for all providers instead of managing multiple API keys
Caching: Reduce costs with response caching for repeated requests

View all available models on the models page.