List 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.

GET /v1/models

cURL

cURL

curl https://api.anthropic.com/v1/models \
     --header "x-api-key: $ANTHROPIC_API_KEY" \
     --header "anthropic-version: 2023-06-01"

200

{
  "data": [
    {
      "created_at": "2023-11-07T05:31:56Z",
      "display_name": "<string>",
      "id": "<string>",
      "type": "model"
    }
  ],
  "first_id": "<string>",
  "has_more": true,
  "last_id": "<string>"
}

Headers

anthropic-version · string · required

The version of the Claude API you want to use.

Read more about versioning and our version history here.

x-api-key · string · required

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.

anthropic-beta · string[]

Optional header to specify the beta version(s) you want to use.

To use multiple betas, use a comma separated list like beta1,beta2 or specify the header multiple times for each beta.

Query Parameters

before_id · string

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

after_id · string

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

limit · integer · default: 20

Number of items to return per page.

Defaults to 20. Ranges from 1 to 1000.

Required range: 1 <= x <= 1000

Response

200

application/json

Successful Response

data · ModelInfo · object[] · required

Show child attributes

data. created_at · string<date-time> · required

RFC 3339 datetime string representing the time at which the model was released. May be set to an epoch value if the release date is unknown.

data. display_name · string · required

A human-readable name for the model.

data. id · string · required

Unique model identifier.

data. type · string · default: model · required

Object type.

For Models, this is always "model".

Allowed value: "model"

first_id · string | null · required

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

has_more · boolean · required

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

last_id · string | null · required

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