oto
Enables text-to-speech conversion using OpenAI's TTS API, with inline audio playback and history within MCP hosts like Claude.
README
oto
oto is an MCP app that turns text into speech. From any MCP host (e.g. Claude), you ask it to read the current text aloud — it converts the text to audio with the OpenAI text-to-speech API and renders an audio player right in the conversation.
What it does
- Text to audio — a
text_to_speechtool takes the current text and generates an audio file via OpenAI TTS. - Inline player — the generated audio shows up as an interactive player UI inside the MCP host: play it, close it.
- History — every audio you generate is saved; browse and replay your previous generations.
- Authenticated — the server requires sign-in before use. Auth is handled by Supabase (used exclusively for authentication).
Stack
- TypeScript end to end.
- MCP server (remote, Streamable HTTP) with an embedded UI for the audio player.
- OpenAI API for text-to-speech generation.
- Supabase for authentication only.
- Railway for hosting the backend, the database, and object storage for the audio files.
Status
Early exploration — currently investigating the stack and setting up project configuration.
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