Snowboy - Snowboy is a customized hotword and wake word detection toolkit that recognizes your voice, runs in real time and on Raspberry Pi.
Deepgram - Search engine for speech
Jasper - Jasper is an open source platform for developing always-on, voice-controlled applications.
Speechmatics - The most accurate and inclusive speech-to-text API ever released.
OpenJarvis - OpenJarvis is a lightweight configurable multi-lang bot.
Yack.net - Recorded and transcribed calls for team collaboration