> ## 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. # ExchangeAuthCodeForAPIKeyRequest ## Example Usage ```typescript theme={null} import { ExchangeAuthCodeForAPIKeyRequest } from "@openrouter/sdk/models/operations"; let value: ExchangeAuthCodeForAPIKeyRequest = { requestBody: { code: "auth_code_abc123def456", }, }; ``` ## Fields | Field | Type | Required | Description | Example | | --------------- | ------------------------------------------------------------------------------------------------------------------- | -------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `httpReferer` | *string* | :heavy\_minus\_sign: | The app identifier should be your app's URL and is used as the primary identifier for rankings.
This is used to track API usage per application.
| | | `appTitle` | *string* | :heavy\_minus\_sign: | The app display name allows you to customize how your app appears in OpenRouter's dashboard.
| | | `appCategories` | *string* | :heavy\_minus\_sign: | Comma-separated list of app categories (e.g. "cli-agent,cloud-agent"). Used for marketplace rankings.
| | | `requestBody` | [operations.ExchangeAuthCodeForAPIKeyRequestBody](../../models/operations/exchangeauthcodeforapikeyrequestbody.mdx) | :heavy\_check\_mark: | N/A | \{
"code": "auth\_code\_abc123def456",
"code\_challenge\_method": "S256",
"code\_verifier": "dBjftJeZ4CVP-mB92K27uhbUJU1p1r\_wW1gFWFOEjXk"
} |