Speech
Every listing carries the same fields in the same order. Counts beside each filter update as you narrow.
| API | Pricing | Auth | Format | Free tier | Status |
|---|---|---|---|---|---|
AudexumText-to-speech in 43 voices and 32 languages, plus speech-to-text transcription in 100+ languages. AI & Machine Learning › Speech | Freemium | API key | JSON | — | Live |
DeepgramSpeech-to-text and text-to-speech transcription with streaming and pre-recorded audio, plus voice agents. AI & Machine Learning › Speech | Free trial | API key | JSON | — | Live |
GladiaAsync and real-time speech-to-text API with translation, summarization, and sentiment add-ons. AI & Machine Learning › Speech | Free trial | API key | JSON | — | Live |
IBM Watson Text to SpeechConverts text into natural-sounding speech in many languages and voices via IBM Watson. AI & Machine Learning › Speech | Freemium | API key | Binary | — | Untested |
MusicGPTAI audio API for text-to-music generation, remixing, text-to-speech and voice conversion. AI & Machine Learning › Speech | Freemium | API key | JSON | — | Untested |
TranscriptFetchExtracts timestamped transcripts from YouTube, TikTok and Instagram videos, channels and playlists. AI & Machine Learning › Speech | Freemium | API key | JSON | <100/day | Live |
AudexumFreemiumLive
Text-to-speech in 43 voices and 32 languages, plus speech-to-text transcription in 100+ languages.
API key · JSON
—
llms.txt
DeepgramFree trialLive
Speech-to-text and text-to-speech transcription with streaming and pre-recorded audio, plus voice agents.
API key · JSON
—
no machine-readable spec
GladiaFree trialLive
Async and real-time speech-to-text API with translation, summarization, and sentiment add-ons.
API key · JSON
—
llms.txt
IBM Watson Text to SpeechFreemiumUntested
Converts text into natural-sounding speech in many languages and voices via IBM Watson.
API key · Binary
—
no machine-readable spec
MusicGPTFreemiumUntested
AI audio API for text-to-music generation, remixing, text-to-speech and voice conversion.
API key · JSON
—
no machine-readable spec
TranscriptFetchFreemiumLive
Extracts timestamped transcripts from YouTube, TikTok and Instagram videos, channels and playlists.
API key · JSON
<100/day
MCP server · llms.txt
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