@iqai/mcp-fraxlend/dist/tools/lendTool.js

Mcp server for Fraxlend access

import { fraxtal } from "viem/chains";
import { z } from "zod";
import { formatWeiToNumber } from "../lib/format-number.js";
import { LendService } from "../services/lend.js";
import { WalletService } from "../services/wallet.js";
const lendParamsSchema = z.object({
    pairAddress: z
        .string()
        .startsWith("0x", {
        message: "Token contract must be a valid Fraxtal address starting with 0x.",
    })
        .describe("The contract address of the asset to lend."),
    amount: z
        .string()
        .regex(/^\d+(\.\d+)?$/, { message: "Amount must be a valid number." })
        .describe("The amount for the asset to lend in the FraxLend pool."),
});
export const lendTool = {
    name: "FRAXLEND_LEND",
    description: "Lend assets to a FraxLend pool",
    parameters: lendParamsSchema,
    execute: async (args) => {
        const walletPrivateKey = process.env.WALLET_PRIVATE_KEY;
        if (!walletPrivateKey) {
            throw new Error("WALLET_PRIVATE_KEY is not set in the environment. This is required to execute trades.");
        }
        console.log(`[FRAXLEND_LEND] Called with token ${args.pairAddress}, amount: ${args.amount}`);
        try {
            const walletService = new WalletService(walletPrivateKey, fraxtal);
            const lendService = new LendService(walletService);
            const result = await lendService.execute({
                pairAddress: args.pairAddress,
                amount: BigInt(args.amount),
            });
            return `
					✅ Lending Transaction Successful

					💰 Amount: ${formatWeiToNumber(args.amount)} tokens
					🔗 Transaction: ${result.txHash}

					Your assets have been successfully supplied to the FraxLend pool.
				`;
        }
        catch (error) {
            const message = error instanceof Error
                ? error.message
                : "An unknown error occurred during the transaction.";
            console.log(`[FRAXLEND_LEND] Error: ${message}`);
            throw new Error(`Failed to add collateral: ${message}`);
        }
    },
};
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