# CredentialKind ```ts export declare const CredentialKind: { readonly CREDENTIAL_KIND_UNSPECIFIED: "CREDENTIAL_KIND_UNSPECIFIED"; readonly CREDENTIAL_KIND_API_KEY: "CREDENTIAL_KIND_API_KEY"; readonly CREDENTIAL_KIND_GCP_ADC: "CREDENTIAL_KIND_GCP_ADC"; }; export type CredentialKind = (typeof CredentialKind)[keyof typeof CredentialKind]; ``` [TypeScript](../../typescript.md)