For the complete documentation index, see llms.txt.
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Speech-to-text, text-to-speech and voice agent APIs for developers
Important Notes
Sign up with any email — no credit card, no .edu needed. $200 in credits land instantly.
Gives you a Speech-to-Text API (transcribe audio files or live streams), a Text-to-Speech API (30+ voices, 7 languages), and a Voice Agent API (full listen → think → speak pipeline over one WebSocket with your own LLM).
Use it to build: voice dictation tools, lecture/podcast transcribers, real-time captions, voice-enabled web apps, or a chatbot you can actually talk to. SDKs for Python, JS, Go, .NET.
Free for everyone — not student-specific. Nova-3 STT runs ~$0.0043/min pre-recorded and ~$0.0059/min streaming, so $200 covers ~46,000 minutes of transcription.
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