> ## 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 ISO 8601 UTC expiration timestamp. Must include seconds (YYYY-MM-DDTHH:MM:SSZ; fractional seconds allowed); minute-precision timestamps are rejected. | 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 | |