# List providers (/docs/api/voice-agents/providers/listProviders)

> For the complete documentation index, see [llms.txt](https://docs.tandemcx.ai/llms.txt). Any page on this site can be fetched as Markdown by appending `.md` to its URL.

`GET /v1/agent-media/providers`

List providers

Every registered speech-to-text, language-model, and text-to-speech provider, each with the JSON Schema its slot `settings` must satisfy.

## Request

**Base URL:** `https://api.tandemcx.ai`

**Authentication:** `Authorization: Bearer <token>` — A Tandem bearer token. Requests are scoped to the organization the token belongs to; no organization header is required.

No parameters or request body.

## Responses

### 200 — The registered providers.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `providers` | array of object | No | — |
| `providers[].slot` | enum: `stt` \| `llm` \| `tts` | No | — |
| `providers[].key` | string | No | — |
| `providers[].settingsSchema` | object | No | JSON Schema the slot's `settings` must satisfy. |