import { AuthorizationServerMetadata } from '../types/oauth-discovery.js';
/**
 * OAuth 2.0 Authorization Server Metadata Discovery Client
 * Implements RFC 8414
 */
export declare class DiscoveryClient {
    private issuerUrl;
    constructor(issuerUrl: string);
    /**
     * Discover authorization server metadata
     * Implements RFC 8414 Section 3
     */
    discover(): Promise<AuthorizationServerMetadata>;
    /**
     * Get the registration endpoint from server metadata
     */
    getRegistrationEndpoint(): Promise<string>;
    /**
     * Get all endpoints from server metadata
     */
    getEndpoints(): Promise<{
        issuer: string;
        authorization?: string;
        token?: string;
        registration?: string;
        revocation?: string;
        introspection?: string;
        jwks?: string;
    }>;
    /**
     * Check if server supports a specific grant type
     */
    supportsGrantType(grantType: string): Promise<boolean>;
    /**
     * Check if server supports a specific response type
     */
    supportsResponseType(responseType: string): Promise<boolean>;
    /**
     * Get full authorization server metadata
     */
    getMetadata(): Promise<AuthorizationServerMetadata>;
}
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