Voices, models and numbers - ThinnestAI

Three read-only lists. Their ids are what the agent fields voice.voice and model take, and what POST /api/v1/calls means by agent’s number.

Voices

GET /api/v1/voices

{
  "items": [
    { "id": "3b7e…", "name": "Anjali", "accent": "hi", "tier": "standard", "description": null },
    { "id": "priya", "name": "Priya", "accent": "hi", "tier": "premium", "description": "Best female — Hindi, Telugu, Kannada, Tamil, Marathi, Gujarati, English." }
  ]
}

The same two lists the Playground’s picker shows. tier is the price band a call is billed at — standard or premium — and accent is the voice’s own; every voice speaks every supported language, and the agent’s language decides which it uses.

Models

GET /api/v1/models

{
  "items": [
    { "id": "prana-voice", "name": "Prana [Voice]", "voice": true, "minPlan": "free", "available": true },
    { "id": "gpt-5-mini", "name": "GPT-5 Mini", "voice": true, "minPlan": "free", "available": true },
    { "id": "gpt-4.1", "name": "GPT-4.1", "voice": false, "minPlan": "payg", "available": false }
  ]
}

voice says whether it is quick enough to answer a phone call. available says whether your plan may pick it; the rest are shown so you can see what an upgrade would add.

Phone numbers

GET /api/v1/phone-numbers

{
  "items": [
    { "number": "918012345678", "label": "Sales line", "source": "rented", "agent": "ag_5c4a…", "since": "2026-08-01T00:00:00Z" }
  ]
}

Every number your workspace can call from or be called on: rented from us, or brought from your own account. agent is the agent answering on it, or null while unassigned. Renting a number and attaching it to an agent are done in the console.