I personally tested 10+ white-label AI voice agents for automated calls, CX, and virtual assistants 24/7. Discover the best Agentic AI to automate your phone calls 24/7
According to recent statistics, 90% of innovators say speech-driven technology is the future for call-based businesses; 67% of users say voice bots would improve their interaction experience online.
But choosing the right AI voice agent API or SDK for your business? That’s where it gets tricky. There are many tools in the market that promise everything, but fall short on customization, control, and security.
In this blog, we will explore the top 10 AI voice solution providers for your business. Let’s get started!
How I defined an AI voice agent?
AI voice agents are software which use artificial intelligence to understand and reply to us in an interactive way. for speech recognition, process natural language, and respond through spoken language. Using technologies like natural language processing (NLP) and speech recognition, it interpret our spoken language, understands intention, and generate the right responses.
These can be said as the virtual assistant that handles a wide range of tasks from answering queries to booking online appointments.
Want to know which providers best suit your business requirements? Let’s explore together.
I considered who can benefit?
Your users don’t want to wait. If you are running a business in customer service, enterprise communication, healthcare or telecommunications, these AI voice agent integrations let your users have faster and more efficient interactions.
Also, team and social chat platforms can leverage voice agent AI to deliver smarter and real-time conversations.
Now is the time to know the AI voice agent API and SDK that’s available in the market.
2026’s Best White Label AI Voice Agents: My Real Test Results
I tested and reviewed the top 10 custom Voice AI Agents are MirrorFly, ElevenLabs, Apphitect, Deepgram, Vapi AI, Retell AI, Cognigy, Lindy AI, Voiceflow, & Bland AI.
1. Thoughtly – Secure AI Agent Development Platform
If you are looking for a no-code AI platform to design human-like AI voice agents, Thoughtly might work out for you. The platform has a record of deploying inbound and outbound phone-based agents in as little as 17 minutes.
Thoughtly combines mathematical vector-based scoring with LLM reasoning using the Performant Agentic Framework (PAF) to create hyper-realistic agents.
Where Thoughtly stands out is its ability to deliver beyond standard conversation. They can perform real-time actions like executing API requests and updating CRM during or after a call. The agents can access custom knowledge bases and scout through past conversations to respond with the most accurate and relevant replies to customers.
Key Features
- Human-like AI Voice Agents
- Deployment in 17 mins
- No-code Drag-and-Drop Agent Builder
- Performant Agentic Framework (PAF)
- Real-time CRM and SaaS Integrations
- Custom Knowledge Base Learning
- Multi-dialect Support
- Automated SMS Campaign Launching
Use Cases
- Automated Customer Support and Service
- Intelligent Lead Qualification and Sales
- Appointment Scheduling & Management
- Order Processing and Shipment Tracking
- Healthcare & Telemedicine
- Real Estate Inquiry Management
- Insurance Claim Status and Policy Updates
- Legal Firm Client Interaction and Case Updates
2. MirrorFly Voice AI : The #1 Custom AI Voice Agents
MirrorFly, robust AI voice agent solution built for businesses that need 1000+ customization features and complete communication control. You can build a quick and intelligent voice agent with custom voice API; support on-premise hosting with secure SIP/VOIP calling.
If you don’t have a technical team, you can hire their expert team, who build and manage your app. MirrorFly lets you integrate into web/mobile apps within 48 hours.
Today, 500+ brands trust MirrorFly worldwide and have become a leader in the CPaaS platform. It supports all languages, browsers, and apps.
What are the key features of MirrorFly?
- Takes & Makes Real Calls
- Handles Inbound Support Calls
- Human-like, Natural Voice (TTS)
- Understands & Responds via Voice
- Real-Time Call Transcription
- AI-Generated Responses
- Multi-modal Bot Interaction (Voice + Text)
- Self-Hosted Model Support
- Handles Queries Seamlessly
- Handles Pauses & Interruptions
- Real-Time APIs
- Real-Time CRM Interaction (via API)
What are the Use Cases?
- Telecommunication
- Multi-Party Calling (team discussion)
- Visitor Management Systems (Gated Community)
- Audio Streaming Events (large audience engagement)
- BFSI – Banking, Financial Services & Insurance
- Digital Native
- Hospitality
- Healthcare
- Real Estate
- Gaming
- Restaurant
- Manufacturing
- Logistics
- Construction
In a nutshell, MirrorFly is perfect for enterprises looking for a fully customizable, self-hosted AI voice agent with white-labeled voice & chat solution that offers complete ownership, control over their data.
3. ElevenLabs: Most Realistic Text to Speech & AI Voice Generator
ElevenLabs is suitable for businesses & content creators who need ultra-realistic voice models for customer service, content creation, and conversational AI.
With the help of voice cloning and emotion control features, it can give a personalized and human-like experience like never before. Supports multiple languages.
What are the key features of ElevenLabs?
- Ultra-realistic voice cloning, preserving tone and emotion
- Real-time text‑to‑speech with low latency
- Scalability
- Security & Compliance
- Cross-Platform Compatibility
What are the Use Cases?
- Customer support & IVR systems
- Audiobooks & multimedia narration
In a nutshell, ElevenLabs helps you to create the most realistic with expressive voices through text-to-speech (TTS) and voice cloning technologies today.
4. Apphitect: Self-hosted Chat API & SDK
Apphitect, an enterprise-grade, fully customizable, self-hosted AI voice solution, provides complete data privacy. It’s known for its high scalability and robust security features.
You can count on Apphitect to build any mobile apps as they provide best-in-class customization services in the UAE & globally since 2008. When it comes to mobile chat app development, providing highly secure messengers for corporates is our key focus. 600+ apps delivered successfully so far.
What are the key features of Apphitect?
- Group Calls
- Connection Status
- Call Muting
- Audio Output Selection
- Incoming Call Notifications
- Call History
- Active Speaker Detection
- One-to-One Call
- Full Control of User Data
- Deployment Flexibility
- High Uptime & Low Latency
- Comprehensive SDKs and APIs
- Dedicated Integration Support
What are the Industries?
- Telecom Network Maintenance
- Corporate Communication Systems
- Government & Healthcare Messaging
- Customer Support
5. Deepgram: Powerful Speech Recognition Platform
Deepgram, a powerful voice AI platform that has an option for flexible deployment with enterprise-level security. Its models include speech-to-text (STT) , text-to-speech (TTS), and spoken language understanding.
6. Vapi AI: Best Voice AI Agents for Developers
Vapi AI, an advanced voice agent, stands out with its fast performance; it has sub-500ms latency and 99.9% uptime. It’s backed by a forward-deployed team, built-in AI guardrails, and has full compliance with SOC2, HIPAA, and PCI standards.
7. Retell AI: Production-ready AI Voice Agents
Retell AI is a fully compliant platform designed to make AI voice deployment easy. With scalability and multilingual support.
It has 99.99% uptime and only 500ms latency, ensuring that your agents are always production-ready. You can expect to achieve 4x operational efficiency and 50% incoming calls automation.
8. Cognigy: Conversational AI That Speaks Your Business
Cognigy, a conversational AI-powered customer service agent that delivers personalized and empathetic voice interactions that feel like humans. It delivers 99% routing accuracy with 70% reduced AHT (average handling time).
9. Lindy AI: #1 AI Sales Assistant
Lindy AI, a truly no-code voice automation agent, supports backend automation and scalable, concurrent calling. With enterprise-grade security and flexible AI model support, Lindy adapts to your unique needs.
10. Voiceflow: Best Collaborative AI Agent
Voiceflow is the best choice for teams that need full control over their voice experience, while offering unified visual and code-based design.
Its LLM-agnostic and enterprise-ready features make it highly flexible, while cross-channel deployment make sure your voice agents work seamlessly across all platforms.
11. Bland AI: Ultra-Realistic AI Phone Agent
Bland AI, a go-to choice for businesses looking for a human-like voice quality AI agent, backed by an end-to-end infrastructure. If you prefer a code-first approach, then it is a great choice as you can build complex and integrated voice workflows.