Voice AI agents
12 voice AI agents, ranked by rating. Connect any of them to your company’s unified MCP endpoint on BusinessMCP so they work from your real business data — model-agnostic across Claude, GPT, and Gemini.
How we rank
Entries we have editorially reviewed come first — those carry pros, cons and verified pricing on their detail page — and the rest are alphabetical. We do not collect user ratings or install telemetry for third-party agents, so nothing here is ordered by a popularity number. BusinessMCP appears in categories where we honestly compete, labeled as ours.
| Agent | By | Pricing | Reviewed |
|---|---|---|---|
| Bland.ai | Bland.ai | Paid | Yes |
| ElevenLabs | ElevenLabs | Freemium | Yes |
| Retell AI | Retell AI | Paid | Yes |
| VAPI | VAPI | Paid | Yes |
| Air AI | Air AI | Paid | — |
| Amazon Lex | Amazon Web Services | Paid | — |
| Fixie.ai | Fixie | Paid | — |
| Google Dialogflow | Google Cloud | Freemium | — |
| PlayHT | PlayHT | Freemium | — |
| Resemble AI | Resemble AI | Paid | — |
Bland.ai
Bland.ai
AI phone calling platform that deploys human-like voice agents for sales calls, customer service, and appointment booking.
ElevenLabs
ElevenLabs
AI voice platform offering ultra-realistic text-to-speech, voice cloning, and conversational AI with 29+ languages.
Retell AI
Retell AI
Developer platform for building production-ready voice AI agents with human-like conversation, low latency, and easy deployment.
VAPI
VAPI
Developer platform for building, testing, and deploying voice AI agents with real-time conversation capabilities over phone.
Air AI
Air AI
AI that can conduct full-length phone calls lasting 10-40 minutes with human-like conversation for sales and customer service.
Amazon Lex
Amazon Web Services
AWS service for building conversational interfaces with voice and text, powered by the same technology as Alexa.
Fixie.ai
Fixie
Platform for building conversational AI agents with ultra-low latency voice capabilities and natural turn-taking.
Google Dialogflow
Google Cloud
Google's conversational AI platform for building chatbots and voice bots with natural language understanding and multi-channel deployment.
PlayHT
PlayHT
AI voice generation platform with ultra-realistic voices for content creation, phone agents, and conversational applications.
Resemble AI
Resemble AI
AI voice generation platform with real-time voice cloning, speech-to-speech, and deepfake detection capabilities.
Thoughtly
Thoughtly
AI voice agent platform that handles inbound and outbound phone calls with natural conversation for sales and support.
Voiceflow
Voiceflow
Visual platform for designing, prototyping, and deploying conversational AI agents for voice and chat interfaces.
Frequently asked questions
What are voice AI agents?
Voice AI agents are autonomous or assistive AI tools built for voice workflows. This directory tracks 12 of them. On BusinessMCP, any of these agents can be pointed at your company’s unified MCP endpoint so it works from your real data instead of guesswork.
How do I connect a voice agent to my business data?
Connect your tools, ad platforms, and Stripe to BusinessMCP and install the tracking script. We unify everything into one hosted MCP server. You then give any agent a Bearer mcph_* key for your endpoint at /api/mcp, and it can securely read and act on your unified data.
Are these agents tied to a specific AI model?
No. BusinessMCP is model-agnostic. Your unified MCP endpoint works identically whether the agent runs on Claude, GPT, Gemini, or an open model — so you are never locked into one vendor.
One endpoint. Every agent. Your whole business.
Unify your data into a single hosted MCP server and give any voice agent real context to work from.
Create your MCP endpoint