/**
 * Dynamic Client Registration (RFC 7591) for MCP OAuth.
 *
 * When connecting to an MCP server that supports DCR, the client can
 * register itself automatically without manual pre-registration.
 *
 * Flow:
 *   1. POST to registration endpoint with client metadata
 *   2. Receive client_id (and optionally client_secret)
 *   3. Use credentials for subsequent OAuth flows
 */
export interface DcrClientMetadata {
    /** Human-readable client name. */
    clientName: string;
    /** Redirect URIs for OAuth callbacks. */
    redirectUris: string[];
    /** Grant types requested (default: ['authorization_code']). */
    grantTypes?: string[];
    /** Response types (default: ['code']). */
    responseTypes?: string[];
    /** Token endpoint auth method (default: 'none' for public clients). */
    tokenEndpointAuthMethod?: 'none' | 'client_secret_basic' | 'client_secret_post';
    /** Scopes the client may request. */
    scope?: string;
}
export interface DcrRegistrationResponse {
    /** Assigned client ID. */
    clientId: string;
    /** Assigned client secret (for confidential clients). */
    clientSecret?: string;
    /** When the credentials expire (ISO date or undefined for non-expiring). */
    clientIdIssuedAt?: number;
    clientSecretExpiresAt?: number;
    /** Echoed metadata. */
    clientName?: string;
    redirectUris?: string[];
    grantTypes?: string[];
}
/**
 * Register a client with an MCP server's DCR endpoint (RFC 7591).
 *
 * @param registrationEndpoint - The DCR endpoint URL.
 * @param metadata - Client metadata to register.
 * @param initialAccessToken - Optional bearer token for protected registration endpoints.
 */
export declare function registerClient(registrationEndpoint: string, metadata: DcrClientMetadata, initialAccessToken?: string): Promise<DcrRegistrationResponse>;
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