Sign up freeSign in
allmodels.ioDocs
API ReferenceProviders

List providers

GET/v1/providers

Lists available providers, their default models and voices, and the TTS and STT models they support. Use GET /v1/models to browse by model instead.

Response Body

application/json

Client
Language
const response = await fetch("https://api.allmodels.io/v1/providers");if (!response.ok) throw new Error(`AllModels request failed: ${response.status}`);console.log(await response.json());
{  "providers": {    "openai": {      "defaults": {        "tts": {          "model": "gpt-4o-mini-tts",          "voice": "alloy"        },        "stt": {          "model": "gpt-realtime-whisper"        }      },      "tts": [        {          "id": "gpt-4o-mini-tts",          "canonical": "openai/gpt-4o-mini-tts",          "aliases": [],          "streaming": false,          "synchronous": true,          "formats": [            "mp3",            "opus",            "aac",            "flac",            "wav",            "pcm"          ],          "instructions": {            "mode": "native",            "honored": true,            "docs": "https://developers.openai.com/api/docs/guides/text-to-speech",            "skill": "https://api.allmodels.io/skills/openai.md"          },          "pricing": {            "currency": "usd",            "unit": "1000 characters",            "unitPrice": "0.016875"          }        }      ],      "stt": [        {          "id": "whisper-1",          "canonical": "openai/whisper-1",          "aliases": [],          "streaming": false,          "synchronous": true,          "batch": false,          "pricing": {            "currency": "usd",            "unit": "minute",            "unitPrice": "0.00633"          }        }      ]    }  }}

List models GET

Lists the TTS and STT models available through AllModels. Each model includes accepted aliases, supported providers, and whether it can be used for streaming or synchronous requests (with an orthogonal `batch` flag for STT providers that queue internally).

Get a provider's delivery skill GET

Returns a markdown guide, written for this API, on how to steer delivery with `instructions` through allmodels for one provider's TTS models: which models honor it, the tags it renders to, what to write in the text where it is not honored, and worked request examples. Every TTS binding in `GET /v1/models` and `GET /v1/providers` links its provider's guide as `instructions.skill`. The file starts with YAML frontmatter carrying `name`, `description`, `updated` (the `YYYY-MM-DD` the guide was last checked against the provider's own docs, also sent as `Last-Modified`) and `stale_after_days`. Every URL in the guide is on the host the guide was requested from.