Supported Third Party Services
Conversation
Watson (V1)
Dialogflow ES (V1 in v6.4 and earlier, V2 in 7.4 and later)
Microsoft Azure Bot Service
Custom (via Orchestration server)
Voice / Text to Speech / TTS
SM Internal / Voice Packages
Google
Microsoft
AWS Polly
SoundHoundÂ
No support for custom TTS
Internal Voice Options
Wave Folder (not part of public API)
Speech Recognition / Speech to Text / STT
IBM Watson
Microsoft
Google
In development: AWS Transcribe
No support for custom STT
Internal Speech Recognition Options
Local SM Speech Recognizer (not part of public API)
Deep Speech Recognizer (not part of the public API)
Local Secondary SM Speech Recognizer (not part of the public API)