Documentation | Models › List Models

API Reference

Models

models

Methods

List Models -> { data, first_id, has_more, 1 more... }

get/v1/models

List available models.

The Models API response can be used to determine which models are available for use in the API. More recently released models are listed first.

query Parameters

after_id: string

Optional

ID of the object to use as a cursor for pagination. When provided, returns the page of results immediately after this object.

before_id: string

Optional

ID of the object to use as a cursor for pagination. When provided, returns the page of results immediately before this object.

limit: number

Optional

(maximum: 1000, minimum: 1, default: 20)

Number of items to return per page.

Defaults to 20. Ranges from 1 to 1000.

header Parameters

anthropic-version: string

Optional

The version of the Anthropic API you want to use.

Read more about versioning and our version history here.

x-api-key: string

Optional

Your unique API key for authentication.

This key is required in the header of all API requests, to authenticate your account and access Anthropic's services. Get your API key through the Console. Each key is scoped to a Workspace.

Response fields

data: Array<{ id, created_at, display_name, 1 more... }>

first_id: string

Nullable

First ID in the data list. Can be used as the before_id for the previous page.

has_more: boolean

Indicates if there are more results in the requested page direction.

last_id: string

Nullable

Last ID in the data list. Can be used as the after_id for the next page.

Request example

curl /api/v3/v1/models

200Example

{
  "data": [
    {
      "id": "claude-3-7-sonnet-20250219",
      "created_at": "2025-02-19T00:00:00Z",
      "display_name": "Claude 3.7 Sonnet",
      "type": "model"
    }
  ],
  "first_id": "first_id",
  "has_more": true,
  "last_id": "last_id"
}

Get A Model -> { id, created_at, display_name, 1 more... }

get/v1/models/{model_id}

Get a specific model.

The Models API response can be used to determine information about a specific model or resolve a model alias to a model ID.

Get A Model -> { id, created_at, display_name, 1 more... }

get/v1/models/{model_id}?beta=true

Get a specific model.

The Models API response can be used to determine information about a specific model or resolve a model alias to a model ID.