APIs, MCP servers and models to build a voice agent
10 tools in the catalog do this, by name.
AssemblyAIAPISpeech-to-text API for recorded files and live audio streams
CartesiaModelReal-time voice models for text to speech and speech to text
DeepgramAPISpeech-to-text, text-to-speech and voice agent APIs
ElevenLabsModelAI voice models for text to speech, transcription and voice agents
Hume AIAPIExpressive text-to-speech and real-time speech-to-speech voice API
LiveKit AgentsPackageOpen-source framework for realtime voice and video AI agents
OpenAI Agents SDKPackageLightweight Python and TypeScript framework for multi-agent workflows
Retell AIAPIPlatform to build, test and deploy AI phone agents
VapiAPIAPI for voice AI agents that answer and place phone and web calls
VoiceflowPlatformPlatform for building and deploying chat and voice AI agents