/** Owner-selectable EVM execution environments. Listing is not production activation. */
export declare const PAYMENT_CHAINS: Readonly<{
    readonly polygon: {
        readonly chainId: 137;
        readonly label: "Polygon";
        readonly native: "POL";
        readonly gasModel: "evm";
        readonly defaultRpc: "https://polygon.drpc.org";
        readonly coingeckoId: "polygon-ecosystem-token";
        readonly maxSaneUsd: 1000;
    };
    readonly base: {
        readonly chainId: 8453;
        readonly label: "Base";
        readonly native: "ETH";
        readonly gasModel: "op";
        readonly defaultRpc: "https://mainnet.base.org";
        readonly coingeckoId: "ethereum";
        readonly maxSaneUsd: 100000;
    };
    readonly optimism: {
        readonly chainId: 10;
        readonly label: "Optimism";
        readonly native: "ETH";
        readonly gasModel: "op";
        readonly defaultRpc: "https://mainnet.optimism.io";
        readonly coingeckoId: "ethereum";
        readonly maxSaneUsd: 100000;
    };
    readonly arbitrum: {
        readonly chainId: 42161;
        readonly label: "Arbitrum";
        readonly native: "ETH";
        readonly gasModel: "nitro";
        readonly defaultRpc: "https://arb1.arbitrum.io/rpc";
        readonly coingeckoId: "ethereum";
        readonly maxSaneUsd: 100000;
    };
    readonly avalanche: {
        readonly chainId: 43114;
        readonly label: "Avalanche";
        readonly native: "AVAX";
        readonly gasModel: "evm";
        readonly defaultRpc: "https://api.avax.network/ext/bc/C/rpc";
        readonly coingeckoId: "avalanche-2";
        readonly maxSaneUsd: 100000;
    };
    readonly bnb: {
        readonly chainId: 56;
        readonly label: "BNB Chain";
        readonly native: "BNB";
        readonly gasModel: "evm";
        readonly defaultRpc: "https://bsc-dataseed1.bnbchain.org";
        readonly coingeckoId: "binancecoin";
        readonly maxSaneUsd: 100000;
    };
    readonly unichain: {
        readonly chainId: 130;
        readonly label: "Unichain";
        readonly native: "ETH";
        readonly gasModel: "op";
        readonly defaultRpc: "https://mainnet.unichain.org";
        readonly coingeckoId: "ethereum";
        readonly maxSaneUsd: 100000;
    };
    readonly xrplevm: {
        readonly chainId: 1440000;
        readonly label: "XRPL EVM";
        readonly native: "XRP";
        readonly gasModel: "evm";
        readonly defaultRpc: "https://rpc.xrplevm.org";
        readonly coingeckoId: "ripple";
        readonly maxSaneUsd: 1000;
    };
    readonly robinhood: {
        readonly chainId: 4663;
        readonly label: "Robinhood";
        readonly native: "ETH";
        readonly gasModel: "nitro";
        readonly defaultRpc: "https://rpc.mainnet.chain.robinhood.com";
        readonly coingeckoId: "ethereum";
        readonly maxSaneUsd: 100000;
    };
}>;
export type PaymentChain = keyof typeof PAYMENT_CHAINS;
/** Unknown names never fall through to a default or to the deprecated BOT network. */
export declare function paymentChain(name: string): (typeof PAYMENT_CHAINS)[PaymentChain] | undefined;
export declare function pinnedTokenDecimals(chain: string, token: string): 6 | 18 | undefined;
/** Descriptor exists only when BOTH the deployed address and its decimals are pinned. */
export declare function paymentStableAsset(chain: PaymentChain, asset: string): {
    symbol: string;
    address: `0x${string}`;
    decimals: 6 | 18;
} | undefined;
//# sourceMappingURL=paymentChains.d.ts.map