What are Providers?
Providers are the AI services that power your Voice AI agents. Every voice agent in Bolna uses providers working together to handle conversations in real-time.Benefits of Connecting Your Own Providers
Reduce Costs
Use your own API keys and pay providers directly. No markup on provider usage.
Access More Models
Use specific models, voices, or features not available on Bolna’s default providers.
Enterprise Features
Get enterprise SLAs, dedicated support, and compliance certifications from providers.
Use Existing Accounts
Already have provider accounts? Connect them to Bolna and use your existing credits.
When you connect your own provider, Bolna doesn’t charge for that provider’s usage. You pay the provider directly.
How Providers Work Together
- Transcriber (STT) — Converts speech to text
- LLM — Understands intent and generates a response
- Synthesizer (TTS) — Converts text to natural speech
Supported Providers
LLMs (Large Language Models)
The brain of your voice agent. Understands caller intent and generates responses.Azure OpenAI
Enterprise OpenAI deployment
OpenAI
GPT-4o, GPT-4o-mini, GPT-3.5
OpenRouter
Access multiple models
Perplexity
Search-powered responses
Transcribers (Speech-to-Text)
Convert spoken words into text. Accuracy and speed are critical for natural conversations.Deepgram
Fast, accurate, great for calls
Sarvam
Indian language transcription
Synthesizers (Text-to-Speech)
Convert text into natural-sounding speech. Voice quality matters for customer experience.Cartesia
Ultra-low latency
ElevenLabs
Ultra-realistic voices
Rime
High-quality synthesis
Sarvam
Indian language voices
Telephony Providers
Handle phone calls - both inbound and outbound.Exotel
India-focused
Plivo
Cost-effective
Twilio
Global coverage
Vobiz
Enterprise telephony
Tools & Integrations
Connect external services to enhance your voice agent.Ai Sensy
WhatsApp messaging
Cal.com
Calendar booking
Quick Start
Ready to connect your own providers? See Connect Providers for step-by-step instructions.Recommended Setups
| Use Case | Recommended Providers |
|---|---|
| Quick testing | Use Bolna’s built-in providers |
| Production | Connect your own accounts |
| Indian languages | Sarvam for LLM |
| Lowest latency | Deepgram + GPT-4o-mini + Cartesia |
| Highest quality | Deepgram + GPT-4o + ElevenLabs |
Next steps
Connect Providers
Add your provider credentials
All Integrations
View all available integrations
Clone Voices
Create custom voices
Playground
Configure your agent