Percify APIVoice prompts for apps and devices
Every in-app voice prompt is generated and updated from text. For product teams building voice features.
How it works
Send text
One POST to /run with the model id and your input. It answers at once with an id.
We run Speech-02-Turbo
$0.12 a 1,000 characters. Charged when it starts, refunded by itself if it fails.
Collect a voiceover
GET /generations/{id}?wait=55 returns an audio file of the text spoken aloud, as a file URL. Or pass a webhook and we call you.
3 models for this, by price
Prices are read from the live catalog. Each one opens the playground with this use case filled in.
The request
Filled in with sample files from our CDN, so it runs as it is. Swap in your own URLs.
curl https://api.percify.io/v3/playground/v1/run \
-H "Authorization: Bearer $PERCIFY_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"modelId": "speech-02-turbo",
"input": {
"text": "Your order is on its way. It should arrive in about twenty minutes."
}
}'Full reference in the docs. Every field Speech-02-Turbo takes is on its model page.
Questions
What do I send to voice prompts for apps and devices?
Send text in one POST to https://api.percify.io/v3/playground/v1/run. You get an audio file of the text spoken aloud.
What does it cost?
With Speech-02-Turbo it is $0.12 a 1,000 characters (6 credits a 1,000 characters). The picks on this page range from $0.10 a 1,000 characters to $0.40 a 1,000 characters. The estimate call returns the exact price of your input before you run it, and a run that fails is refunded.
Which model should I use?
Budget: Qwen3 TTS Flash ($0.10 a 1,000 characters). Balanced: Speech-02-Turbo ($0.12 a 1,000 characters). Premium: ElevenLabs Eleven V3 ($0.40 a 1,000 characters). Switching is one string in the request: the model id.
Can an AI agent do this for me?
Yes. Connect your agent to the MCP server at https://mcp.percify.io/mcp and ask for it in plain words. The agent calls the generate tool with the same model id and input shown on this page, and the call spends the same credits.
Turn text into speech
Voiceovers for videos
Narration for articles and books