> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# CreateAuthKeysCodeRequest

## Fields

| Field                 | Type                                                                                                                    | Required             | Description                                                                                                                            | Example                                                            |
| --------------------- | ----------------------------------------------------------------------------------------------------------------------- | -------------------- | -------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------ |
| `CallbackURL`         | `string`                                                                                                                | :heavy\_check\_mark: | The callback URL to redirect to after authorization. Supports https URLs and localhost/127.0.0.1 URLs on any port for local CLI tools. | [https://myapp.com/auth/callback](https://myapp.com/auth/callback) |
| `CodeChallenge`       | `*string`                                                                                                               | :heavy\_minus\_sign: | PKCE code challenge for enhanced security                                                                                              | E9Melhoa2OwvFrEMTJguCHaoeK1t8URWbuGJSstw-cM                        |
| `CodeChallengeMethod` | [\*operations.CreateAuthKeysCodeCodeChallengeMethod](../../models/operations/createauthkeyscodecodechallengemethod.mdx) | :heavy\_minus\_sign: | The method used to generate the code challenge                                                                                         | S256                                                               |
| `ExpiresAt`           | optionalnullable.OptionalNullable\[[time.Time](https://pkg.go.dev/time#Time)]                                           | :heavy\_minus\_sign: | Optional expiration time for the API key to be created                                                                                 | 2027-12-31T23:59:59Z                                               |
| `KeyLabel`            | `*string`                                                                                                               | :heavy\_minus\_sign: | Optional custom label for the API key. Defaults to the app name if not provided.                                                       | My Custom Key                                                      |
| `Limit`               | `*float64`                                                                                                              | :heavy\_minus\_sign: | Credit limit for the API key to be created                                                                                             | 100                                                                |
| `UsageLimitType`      | [\*operations.UsageLimitType](../../models/operations/usagelimittype.mdx)                                               | :heavy\_minus\_sign: | Optional credit limit reset interval. When set, the credit limit resets on this interval.                                              | monthly                                                            |
| `WorkspaceID`         | `*string`                                                                                                               | :heavy\_minus\_sign: | Optional workspace ID to associate the API key with                                                                                    |                                                                    |