REST API v1 • 400+ Neural Voices

Vocalis AI Public Developer API Platform

Add ultra-realistic neural speech synthesis, 70+ languages, and timestamped subtitles into your mobile apps, SaaS products, and autonomous agents in seconds.

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🤖 1-Click AI Integration Prompt (Cursor, ChatGPT & Claude)

Copy this master prompt into your AI coding assistant to auto-build client integration code in any programming language.

I want to integrate Vocalis AI Neural Text-to-Speech into my application. Here are the API details: - **Base URL:** https://vocalisai.duckdns.org - **Authentication:** Header 'Authorization: Bearer ' or 'x-api-key: ' - **Speech Synthesis Endpoint:** POST https://vocalisai.duckdns.org/api/v1/tts/synthesize - Headers: Content-Type: application/json, Authorization: Bearer vocalis_live_sk_... - JSON Body: { "text": "Hello world! This is natural neural speech synthesized via Vocalis AI.", "voice": "hi-IN-MadhurNeural", "rate": 0, "pitch": 0 } - Response JSON: { "status": "success", "audio_base64": "", "duration": 3.5, "subtitles_srt": "", "credits_remaining": 9950 } - **Voices Catalog:** GET https://vocalisai.duckdns.org/api/v1/voices - **Usage / Balance:** GET https://vocalisai.duckdns.org/api/v1/usage - **Full OpenAPI Spec:** https://vocalisai.duckdns.org/openapi.json Please write a production-ready client integration class/helper for my [React / Flutter / Next.js / Python / iOS Swift / Android Kotlin] application that calls this endpoint, decodes the base64 MP3 audio for playback, and handles errors.

Multi-Language Integration Snippets

REST API v1 Specification

POST /api/v1/tts/synthesize

Synthesizes speech audio and synchronized captions. Deducts 1 credit per 10 characters.

            Body: { "text": "string", "voice": "string (optional)", "rate": 0, "pitch": 0 }
          

GET /api/v1/voices

Returns all 400+ neural voices, regional accents (Hindi, Telugu, Tamil, Marathi, Bengali), and gender tags.

GET /api/v1/usage

Returns remaining credit balance, rate limits, and key status in real time.