Voice AI APIsOnline
Gladia
Speech-to-text API that transcribes and enriches conversations for voice products.
- Languages
- 100 languages
Voice AI APIs: compare vendors
VoiceAgents lists 39 voice AI APIs vendors. Each listing links to its source.
Results
39 voice AI vendors
Voice AI APIsOnline
Rime
Text-to-speech voice models built for real-time conversations, with 600+ voices, 50+ languages and sub-100ms latency.
- Languages
- 50 languages
Voice agent platformsOnline
Bland AI
Build, deploy, and monitor AI voice agents that sound human. Self-hosted models, sub-second latency, and enterprise compliance.
- Languages
- 40 languages
Voice AI APIsOnline
Cartesia
Cartesia builds real-time voice AI: production voice agents, lifelike text-to-speech, and accurate speech-to-text in 44 languages.
- Languages
- 44 languages
Voice agent platformsOnline
Dasha
Developer platform to create voice and text AI agents for telephony, WebRTC and text channels with sub-second latency.
- Languages
- 30 languages
Open-source voice frameworksOnline
LiveKit
An open source framework and developer platform for building, testing, deploying, scaling, and observing agents in production.
Voice AI APIsOnline
Soniox
Speech AI API for real-time speech-to-text, text-to-speech and translation in 60+ languages.
- Languages
- 60 languages
Voice AI APIsOnline
Speechmatics
Speechmatics builds speech-to-text APIs for real conversations, not clean demos. Build Voice AI that understands accents, multiple speakers, and multilingual…
- Languages
- 55 languages
Voice AI APIsOnline
Telnyx
Licensed carrier offering voice AI agent infrastructure, telephony, SIP trunking and speech APIs on its own private network.
- Languages
- 100 languages
Voice AI APIsOnline
Deepgram
Power enterprise voice solutions with Deepgram’s Speech-to-Text, Text-to-Speech, and Voice Agent APIs. Real-time, accurate, and built for scale.
Voice AI APIsOnline
ElevenLabs
AI voice generator and voice agents platform with 17,500+ voices in 90+ languages, offered via APIs and SDKs.
- Languages
- 90 languages
Voice AI APIsOnline
Gemini Live API
Google's Gemini Live API for low-latency, real-time voice and video interactions with Gemini models.
- Languages
- 70 languages
Voice AI APIsOnline
Inworld AI
Realtime voice models (TTS) and LLM inference for consumer applications and voice agents.
Voice agent platformsOnline
Retell AI
Platform to deploy voice AI agents that answer, qualify and book on real phone calls; states HIPAA and SOC 2 compliance.
Voice AI APIsOnline
SignalWire
Build AI voice agents, contact centers, and unified communications on one programmable platform. One control plane, no vendor stitching.
Voice AI APIsOnline
Bandwidth
Enterprise communications platform with voice, messaging and emergency APIs, including infrastructure for voice AI.
Contact-centre voice AIOnline
Gnani.ai
Builds enterprise AI agents, ASR, TTS, LLM and voice biometrics in 40+ languages.
- Languages
- 40 languages
Voice AI APIsOnline
Phonic
Speech-to-speech models for building natural-sounding voice agents.
- Languages
- 50 languages
Voice AI APIsOnline
Plivo
Voice and messaging APIs plus no-code builder and APIs to deploy AI voice agents.
- Languages
- 50 languages
Voice AI APIsOnline
Smallest.ai
Voice AI platform offering text-to-speech, speech-to-text and voice agents for enterprises.
- Languages
- 38 languages
Voice AI APIsOnline
Twilio
Communications APIs for voice, SMS, RCS and email, plus ConversationRelay for building voice AI agents.
Voice AI APIsOnline
Ultravox
Ultravox is a real-time voice AI infrastructure layer that powers fast, natural, and scalable voice agents.
Voice AI APIsOnline
Voice.ai
Voice AI platform with voice agents, text-to-speech and voice changer, available via APIs and SDKs.
- Languages
- 15 languages
Voice AI APIsOnline
Agora
Real-time voice, video and conversational AI APIs, including a conversational AI engine for voice agents.
Voice AI APIs by city
Related categories
Questions
Which cities have the most voice AI APIs?
The cities with the most voice AI APIs are Online, Global (30 voice AI vendors), Online, Global (3 voice AI vendors), Online, Global (2 voice AI vendors), Online, Global (1 voice AI vendor), and Online, Global (1 voice AI vendor).
Published by VoiceAgents. How we check each voice AI vendor.