AI narration, one POST away
A plain REST text-to-speech endpoint — 53 voices across 15 languages, MP3 out. Pay per character from your plan's credit balance, with no separate API subscription.
Quick start
- Create an account and pick a plan (from $4/month — every plan includes monthly credits).
- Create an API key on your dashboard.
- POST your text — get an MP3 back.
curl https://vidsly.ai/api/v1/tts \
-H "Authorization: Bearer ksk_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"text": "Three numbers came out this morning, and every one of them moved the market.",
"voice": "azure-aria",
"speed": "normal"
}' \
--output story.mp3MCP — drive the studio from inside Claude
Add our MCP server to Claude Code or Claude Desktop and just ask: "Narrate this script in Aria's voice and send me the MP3." The file or a watch link comes back in the chat. Presenter videos cost 500 credits; audio narration is 1 credit per 10 characters.
{
"mcpServers": {
"vidsly": {
"command": "npx",
"args": ["-y", "vidsly-mcp"],
"env": { "VIDSLY_API_KEY": "ksk_live_..." }
}
}
}Tools: create_talking_storybook · get_storybook_status · list_characters · create_audio_story — package: vidsly-mcp
▶️ Try it
Hear any voice before you integrate. (Uses your account's character allowance — no API key needed here.)
POST /api/v1/tts
text required — NO length limit. Up to ~20,000 characters returns audio directly; longer texts return 202 + a jobId to poll (GET /api/v1/tts?jobId=…) for the MP3 URL. Truly unlimited.
voice — voice id (default azure-aria). See the list below or GET /api/v1/voices.
speed — slow | normal | gentle.
format — mp3 (binary, default) or json (base64).
const res = await fetch("https://vidsly.ai/api/v1/tts", {
method: "POST",
headers: {
"Authorization": "Bearer ksk_live_YOUR_KEY",
"Content-Type": "application/json",
},
body: JSON.stringify({
text: "Os mercados abriram em silêncio esta manhã…",
voice: "azure-pt-francisca",
format: "json", // base64 instead of binary
}),
});
const { audio, credits_charged } = await res.json();Errors are JSON: { "error": { "code", "message" } } — 401 bad key, 402 not enough credits, 400 invalid input or content rejected, 429 rate limited. You are never charged for a failed request.
Pricing
1 credit per 10 characters (minimum 1 credit per request), from the same credit balance as the rest of Vidsly. Every plan includes monthly credits — from 5,000 on Basic ($4/month) up to 200,000 on Studio — so roughly $0.045–0.06 per 1,000 characters. Unused credits bank for 90 days.
| This API | ||
|---|---|---|
| Per 1,000 chars | $0.045–0.08, depending on plan | |
| Separate API subscription | None — included from the Pro plan up | |
| Max characters per request | 1,000,000 (long jobs return a jobId to poll) | |
Content safety
Every request is screened by an AI moderation layer before synthesis. Text that falls outside our content policy is rejected (HTTP 400 content_rejected, no charge): sexual content, hate speech, threats against real people, instructions for violent wrongdoing, and graphic gore. Reporting on a difficult subject is fine — depicting it explicitly is not, so true crime, war, hard news and politics all pass. If the moderation provider is unreachable the request fails closed with a 503 rather than being synthesised unchecked.
Voices
Young / character voices (15)
kid-girlEnglish (US)kid-babyEnglish (US)kid-britishEnglish (UK)kid-spanishSpanish (Mexico)kid-frenchFrenchkid-germanGermankid-chineseChinese (Mandarin)kid-italianItaliankid-portuguesePortuguese (Brazil)kid-japaneseJapanesekid-turkishTurkishkid-arabicArabickid-koreanKoreankid-hindiHindikid-bengaliBengaliNarration voices (38)
azure-ariaEnglish (US)azure-jennyEnglish (US)azure-michelleEnglish (US)azure-monicaEnglish (US)azure-saraEnglish (US)azure-guyEnglish (US)azure-davisEnglish (US)azure-tonyEnglish (US)azure-freyaEnglish (AU)azure-williamEnglish (AU)azure-neerjaEnglish (IN)azure-emilyEnglish (IE)calm-momEnglish (US)sweet-teacherEnglish (US)sunny-friendEnglish (US)bedtime-whisperEnglish (US)playful-elfEnglish (US)friendly-bearEnglish (US)story-dadEnglish (US)cozy-uncleEnglish (US)gentle-giantEnglish (US)story-grandpaEnglish (US)azure-es-daliaSpanish (Mexico)azure-es-jorgeSpanish (Mexico)azure-es-elenaSpanish (Spain)azure-fr-deniseFrenchazure-fr-henriFrenchazure-fr-vivienneFrenchazure-de-katjaGermanazure-de-konradGermanazure-de-amalaGermanazure-pt-franciscaPortuguese (Brazil)azure-pt-antonioPortuguese (Brazil)azure-pt-thalitaPortuguese (Brazil)azure-it-isabellaItalianazure-it-giuseppeItalianazure-ko-sunhiKoreanazure-ko-injoonKoreanQuestions? Contact us — we reply within 24 hours.