import type { WebMiddleware } from "@/types/middleware";
type StaticApiKeyConfig = {
    /** The static API key to validate against */
    apiKey: string;
    /** Optional header name to read the API key from. Defaults to 'x-api-key' */
    headerName?: string;
};
type CustomValidationConfig = {
    /** Optional header name to read the API key from. Defaults to 'x-api-key' */
    headerName?: string;
    /** Custom validation function that receives the API key and returns a Promise<boolean> */
    validateApiKey: (key: string) => Promise<boolean>;
};
export declare function cloudflareApiKeyAuthMiddleware(config: StaticApiKeyConfig): WebMiddleware;
export declare function cloudflareApiKeyAuthMiddleware(config: CustomValidationConfig): WebMiddleware;
export {};