import type { AuthorizationServerMetadata, ProtectedResourceMetadata } from "./types.js";
export interface MetadataFetchDeps {
    readonly fetchImpl?: typeof fetch | undefined;
    readonly validateUrl?: ((url: string) => URL) | undefined;
}
export declare function buildProtectedResourceMetadataUrl(resource: string): string;
export declare function discoverProtectedResourceMetadata(metadataUrl: string, deps?: MetadataFetchDeps): Promise<ProtectedResourceMetadata>;
export declare function authorizationServerMetadataCandidates(issuer: string): string[];
export declare function discoverAuthorizationServerMetadata(issuer: string, deps?: MetadataFetchDeps): Promise<AuthorizationServerMetadata>;