import type { WireChainsResponse } from './wire.js';
export type CatalogToken = {
    symbol: string;
    address: string;
    decimals: number;
};
export type ChainInfo = {
    name: string;
    testnet: boolean;
    supportedTokens: 'all' | CatalogToken[];
    wrappedNativeToken?: CatalogToken;
};
export type ChainInfoMap = Record<number, ChainInfo>;
/**
 * Read-only view over the chain facts returned by `GET /chains`. Built once per
 * client (fetched lazily) and read synchronously thereafter.
 */
export declare class ChainCatalog {
    private readonly chains;
    constructor(chains: ChainInfoMap);
    getSupportedChainIds(): number[];
    isSupported(chainId: number): boolean;
    getChainInfo(chainId: number): ChainInfo | undefined;
    /**
     * Whether the chain is a testnet, per the orchestrator's `/chains`. Uses the
     * catalog's own flag so it is authoritative for every supported chain
     * (including non-EVM and chains newer than the SDK's viem), rather than
     * viem's local chain list.
     */
    isTestnet(chainId: number): boolean;
    /** The wrapped-native (e.g. WETH) token for the chain, if advertised. */
    getWrappedNativeToken(chainId: number): CatalogToken | undefined;
    getSupportedTokens(chainId: number): 'all' | CatalogToken[] | undefined;
}
export declare function parseChains(json: WireChainsResponse): ChainInfoMap;
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