Voice & IVR Suite

Voice & IVR Suite — Power voice experiences with one API: synthesize natural speech, transcribe caller audio, clone a brand voice, and score caller sentiment for routing.

🗣️ Voice AI

🚀 Newcomer launch pricing — limited-time introductory rates while we earn our first reviews.

Built for contact-center, IVR, and voice-app developers, conversational-AI builders.

Why this exists

Building a voice or IVR flow means separate TTS, STT, voice-cloning, and sentiment vendors wired together by hand.

What you get

One API key voices, transcribes, clones, and reads sentiment — the building blocks of any voice experience.

Endpoints (4 total)

• POST /v1/tts/synthesise
• POST /v1/stt/transcribe
• POST /v1/voice/clone
• POST /v1/sentiment/analyze

Sample request

curl -X POST https://api-voice-ivr-suite.knowlez.com/v1/tts/synthesise -H "X-API-Key: <your-key>" -H "Content-Type: application/json" -d '{}'

Pricing

• Starter — $9/mo · 300 ops included · $0.05/op overage
• Pro — $39/mo · 3,000 ops included · $0.025/op overage
• Scale — $149/mo · 30,000 ops included · $0.01/op overage

Swagger / OpenAPI: api-voice-ivr-suite.knowlez.com/docs