keirouter-tts

KeiRouter — Text-to-Speech

Requires KEIROUTER_URL (and KEIROUTER_KEY if auth enabled). See https://raw.githubusercontent.com/mydisha/keirouter/main/skills/keirouter/SKILL.md for setup.

Discover

# 1) List models
curl $KEIROUTER_URL/v1/models/tts | jq '.data[].id'
# 2) Per-model metadata (params, voicesUrl if voice-by-id)
curl "$KEIROUTER_URL/v1/models/info?id=el/eleven_multilingual_v2"

model field in /v1/audio/speech = voice ID directly (e.g. edge-tts/vi-VN-HoaiMyNeural, el/<voice_id>, or openai/tts-1 model+default voice).

Endpoint

POST $KEIROUTER_URL/v1/audio/speech

Field	Required	Notes
model	yes	voice ID from /v1/models/tts
input	yes	text to speak

Query ?response_format=mp3 (default, raw bytes) or ?response_format=json ({audio: base64, format}).

Examples

Save MP3:

curl -X POST "$KEIROUTER_URL/v1/audio/speech" \
  -H "Authorization: Bearer $KEIROUTER_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/tts-1","input":"Hello world"}' \
  --output speech.mp3

JS (save file):

import { writeFile } from "node:fs/promises";
const r = await fetch(`${process.env.KEIROUTER_URL}/v1/audio/speech`, {
  method: "POST",
  headers: { "Authorization": `Bearer ${process.env.KEIROUTER_KEY}`, "Content-Type": "application/json" },
  body: JSON.stringify({ model: "el/eleven_multilingual_v2", input: "Hello world" }),
});
await writeFile("speech.mp3", Buffer.from(await r.arrayBuffer()));

Response shape

Default → raw audio bytes (Content-Type audio/mp3).

?response_format=json:

{ "audio": "SUQzBAAAA...", "format": "mp3" }

Provider quick reference

Provider	model format	Notes
OpenAI	tts-1/alloy (model/voice) or just voice	Default model gpt-4o-mini-tts
ElevenLabs	<model_id>/<voice_id> or <voice_id>	Default model eleven_flash_v2_5
Edge TTS	voice id e.g. vi-VN-HoaiMyNeural	noAuth; free
Deepgram	aura-asteria-en etc	Token auth
Inworld	model/voice	Provider-specific auth