export type AnthropicAuthKind = 'api-key' | 'oauth';
export interface AnthropicAuth {
    readonly token: string;
    readonly kind: AnthropicAuthKind;
    readonly sourceEnv: string;
}
export declare const ANTHROPIC_OAUTH_ENVS: ReadonlyArray<string>;
export declare const ANTHROPIC_OAUTH_BETA = "oauth-2025-04-20";
export declare function classifyAnthropicToken(token: string): AnthropicAuthKind;
export declare function resolveAnthropicAuth(env?: NodeJS.ProcessEnv): AnthropicAuth | undefined;
export declare function getAnthropicApiKey(): string | undefined;
export declare function hasAnthropicApiKey(): boolean;
//# sourceMappingURL=env.d.ts.map