import type { MarketsResponse } from '../Client';
import { UtxoExplorer } from '../Explorer/UtxoExplorer';
import { EvmExplorer } from '../Explorer/EvmExplorer';
import { GlobalExplorer } from '../Explorer/GlobalExplorer';
import { EvmConnector } from '../Connector/EvmConnector/EvmConnector';
import { EvmRpcConnector } from '../Connector/EvmRpcConnector/EvmRpcConnector';
import { EvmRpcExplorer } from '../Connector/EvmRpcConnector/EvmRpcExplorer';
import { UtxoConnector } from '../Connector/UtxoConnector/UtxoConnector';
import { BchConnector } from '../Connector/UtxoConnector/BchConnector/BchConnector';
import { UtxoNetworkDescriptor, BchNetworkDescriptor, EvmNetworkDescriptor, EvmRpcNetworkDescriptor } from './networks';
import type { NetworkCollection } from './networks';
import type { Wallet } from '../Wallet/Wallet';
import { TTLCache } from '../utils/TTLCache';
import { UtxoLocalCache } from '../utils/UtxoLocalCache';
import { EvmNonceCache } from '../utils/EvmNonceCache';
import { RpcUrls } from './RpcUrls';
/** Shared state created by {@link ChainGate} and threaded into explorers/connectors. */
export interface ChainGateGlobal {
    marketsCache: TTLCache<MarketsResponse>;
    utxoCache: UtxoLocalCache;
    evmNonceCache: EvmNonceCache;
}
/**
 * Main client for the ChainGate blockchain API.
 *
 * Provides access to the ChainGate API for querying blockchain data
 * across EVM and UTXO networks.
 *
 * The API key is optional — without one you get a small rate limit suitable
 * for trying things out. Get a free API key at https://api.chaingate.dev for
 * a higher quota.
 *
 * @example
 * ```ts
 * import { ChainGate } from 'chaingate';
 *
 * const cg = new ChainGate();
 *
 * const btc = cg.explore(cg.networks.bitcoin);    // UtxoExplorer
 * const eth = cg.explore(cg.networks.ethereum);   // EvmExplorer
 * const avax = cg.explore(cg.networks.avalanche); // EvmExplorer
 * ```
 */
export declare class ChainGate {
    private readonly client;
    private readonly apiKey;
    private readonly _networks;
    private readonly _rpcUrls;
    /** @internal Shared state passed to explorers and connectors. */
    readonly global: ChainGateGlobal;
    /**
     * Returns a `UtxoExplorer` for the given UTXO network.
     */
    explore(network: UtxoNetworkDescriptor): UtxoExplorer;
    /**
     * Returns an `EvmExplorer` for the given EVM network.
     */
    explore(network: EvmNetworkDescriptor): EvmExplorer;
    /**
     * Returns an `EvmRpcExplorer` for a custom EVM RPC network.
     */
    explore(network: EvmRpcNetworkDescriptor): EvmRpcExplorer;
    /**
     * Returns a {@link GlobalExplorer} for querying cross-network data such as
     * market prices, fiat exchange rates, real-time network information, and
     * network logos — including networks that don't have dedicated `/evm` or
     * `/utxo` endpoints.
     *
     * @example
     * ```ts
     * const global = cg.exploreGlobal();
     *
     * const markets = await global.getMarkets();
     * const info    = await global.getNetworksInfo();
     * const logoUrl = global.getNetworkLogoUrl('berachain');
     * ```
     */
    exploreGlobal(): GlobalExplorer;
    /**
     * Returns the collection of all supported networks.
     *
     * The returned object is iterable (like an array) **and** has named
     * properties for direct access:
     *
     * ```ts
     * // Direct access
     * cg.networks.bitcoin   // UtxoNetworkDescriptor
     * cg.networks.ethereum  // EvmNetworkDescriptor
     *
     * // Iteration
     * for (const net of cg.networks) { ... }
     * ```
     */
    get networks(): NetworkCollection;
    /**
     * Pre-built JSON-RPC endpoint URLs for every network supported by the
     * ChainGate RPC proxy, with the API key already appended.
     *
     * Useful for passing to external libraries (ethers, viem, etc.) or to
     * {@link NetworkCollection.evmRpc | `cg.networks.evmRpc()`}.
     *
     * @example
     * ```ts
     * // Use with evmRpc connector
     * const polygon = cg.networks.evmRpc({
     *   rpcUrl: cg.rpcUrls.polygon,
     *   chainId: 137,
     *   name: 'Polygon',
     *   symbol: 'POL',
     * });
     *
     * // Or pass to any JSON-RPC library
     * const provider = new ethers.JsonRpcProvider(cg.rpcUrls.ethereum);
     * ```
     */
    get rpcUrls(): RpcUrls;
    /**
     * Connects a wallet to a network, returning a connector with address derivation,
     * balance queries, transaction broadcasting, and smart contract calls.
     *
     * @example
     * ```ts
     * const connector = cg.connect(cg.networks.ethereum, wallet);
     * const address = await connector.getAddress();
     * ```
     */
    connect(network: BchNetworkDescriptor, wallet: Wallet): BchConnector;
    connect(network: EvmNetworkDescriptor, wallet: Wallet): EvmConnector;
    connect(network: EvmRpcNetworkDescriptor, wallet: Wallet): EvmRpcConnector;
    connect(network: UtxoNetworkDescriptor, wallet: Wallet): UtxoConnector;
    /**
     * @param options - Optional configuration.
     * @param options.apiKey - Your ChainGate API key. Omit to use the keyless
     *   tier (small rate limit). Get a free key at https://api.chaingate.dev.
     */
    constructor({ apiKey }?: {
        apiKey?: string;
    });
}