Models

List the models CrossModel currently has available, or look up a single model.

Endpoint

GET https://api.crossmodel.ai/v1/models
GET https://api.crossmodel.ai/v1/models/{model}
Authorization: Bearer cm-YOUR_KEY

Both endpoints require a Bearer API key in the Authorization header.

List models

1curl https://api.crossmodel.ai/v1/models \2  -H "Authorization: Bearer $CROSSMODEL_API_KEY"

The model object

Field	Type	Notes
`id`	string	Model ID in `vendor/short_name` form, e.g. `deepseek/deepseek-v4-pro`.
`object`	string	Always `model`.
`created`	integer	When the model was added, as a Unix timestamp (seconds).
`owned_by`	string	The model's author, e.g. `deepseek`, `openai`, `anthropic`.

List models

GET /v1/models

Returns every model currently available.

curl https://api.crossmodel.ai/v1/models \
  -H "Authorization: Bearer cm-YOUR_KEY"

{
  "object": "list",
  "data": [
    {
      "id": "deepseek/deepseek-v4-pro",
      "object": "model",
      "created": 1716239400,
      "owned_by": "deepseek"
    },
    {
      "id": "anthropic/claude-sonnet-4.6",
      "object": "model",
      "created": 1716239401,
      "owned_by": "anthropic"
    }
  ]
}

Field	Type	Notes
`object`	string	Always `list`.
`data`	array	An array of model objects.

Retrieve a model

GET /v1/models/{model}

Get a single model. Use the full model ID for {model}; URL-encode the / as %2F.

curl https://api.crossmodel.ai/v1/models/deepseek%2Fdeepseek-v4-pro \
  -H "Authorization: Bearer cm-YOUR_KEY"

{
  "id": "deepseek/deepseek-v4-pro",
  "object": "model",
  "created": 1716239400,
  "owned_by": "deepseek"
}

If the model doesn't exist, the endpoint returns 404 with the code model_not_found.

Errors

Errors use one shared format:

{
  "error": {
    "message": "Model 'foo/bar' was not found or is unavailable.",
    "type": "invalid_request_error",
    "param": null,
    "code": "model_not_found"
  }
}

HTTP status	`type`	Common `code`	Notes
`401`	`authentication_error`	`missing_api_key`, `invalid_api_key`	API key missing or invalid.
`404`	`invalid_request_error`	`model_not_found`	The requested model doesn't exist or is currently unavailable.
`500`	`api_error`	`internal_error`	A CrossModel internal error.