export declare const base: {
    blockExplorers: {
        readonly default: {
            readonly name: "Basescan";
            readonly url: "https://basescan.org";
            readonly apiUrl: "https://api.basescan.org/api";
        };
    };
    contracts: {
        readonly l2OutputOracle: {
            readonly 1: {
                readonly address: "0x56315b90c40730925ec5485cf004d835058518A0";
            };
        };
        readonly multicall3: {
            readonly address: "0xca11bde05977b3631167028862be2a173976ca11";
            readonly blockCreated: 5022;
        };
        readonly portal: {
            readonly 1: {
                readonly address: "0x49048044D57e1C92A77f79988d21Fa8fAF74E97e";
                readonly blockCreated: 17482143;
            };
        };
        readonly l1StandardBridge: {
            readonly 1: {
                readonly address: "0x3154Cf16ccdb4C6d922629664174b904d80F2C35";
                readonly blockCreated: 17482143;
            };
        };
    };
    id: 8453;
    name: "Base";
    nativeCurrency: {
        readonly name: "Ether";
        readonly symbol: "ETH";
        readonly decimals: 18;
    };
    rpcUrls: {
        readonly default: {
            readonly http: readonly ["https://mainnet.base.org"];
        };
    };
    sourceId: 1;
    testnet?: boolean | undefined;
    custom?: Record<string, unknown> | undefined;
    fees?: import("../core/Types.js").ChainFees<undefined> | undefined;
    formatters?: undefined;
    serializers?: import("../core/Types.js").ChainSerializers<undefined, import("../core/TransactionEnvelope.js").TransactionEnvelope> | undefined;
};
//# sourceMappingURL=base.d.ts.map