Hey Vapi Team, It's Ulvi from AlfinX (https://alfinx.com). I’ve been building voice agents on Vapi since early 2024 and absolutely love how quickly we can iterate on call flows. Why I’m writing : AlfinX now provides production-ready **Azerbaijani speech technology—both real-time TTS and streaming STT**exposed via simple REST and WebSocket APIs. Several banks and telecoms in Azerbaijan already rely on it for IVR and call-center automation, and we think it would be a perfect fit as a native language option in Vapi. Fresh language coverage. Azerbaijani tops 24 million native speakers, yet there’s still no first-class voice or transcriber in Vapi. Both sides of the stack. AlfinX ships real-time TTS (≤180 ms) and streaming STT (≤250 ms) over simple REST/WebSocket endpoints. Plug-and-play fit. Your Custom TTS / STT webhooks match our API contract out of the box, so a POC is literally hours, not weeks. We run everything in Baku, satisfying local privacy rules that global clouds can’t always meet. What’s in it for Vapi New market instantly: finance, telecom, and gov clients here keep asking for Azerbaijani voices. Zero lift: we’ll provide test keys, sample assistants, and docs; your team just toggles us on in the provider list. Could we hop on a 30-minute call this week to verify latency numbers and sketch the next steps? Looking forward to making Vapi the go-to voice platform for Azerbaijani speakers! Cheers, Ulvi Aliyev

Thanks for reaching out about your Azerbaijani speech technology. Vapi currently supports the integration of custom voice solutions with preferred providers by setting up configurations in your assistant. You can specify a voice provider and

voiceId

in the configuration:

json
{
  "voice": {
    "provider": "your-provider",
    "voiceId": "your-voice-id"
  }
}

For your custom speech technology, ensure that your APIs are compatible with Vapi's configuration options and use the guidelines in the [Custom Voices](https://docs.vapi.ai/customization/custom-voices/custom-voice) and [Custom Tavus Replicas](https://docs.vapi.ai/customization/custom-voices/tavus) documents to integrate seamlessly. If your API key or voice ID is needed, you can add it to the Vapi dashboard or API requests. If you want to discuss further collaboration possibilities, particularly for integrating your Azerbaijani technology into Vapi's offerings, feel free to share more details.

Hey Kings, thanks for the message. The thing is this is not custom speech technology, this is our azerbaijani voice provider. So AlfinX would like to be either as preferred provider to be able to work with VAPI though APIs like RapidAPI