@iqai/mcp-fraxlend
Version:
Mcp server for Fraxlend access
53 lines (51 loc) • 2.13 kB
JavaScript
import { fraxtal } from "viem/chains";
import { z } from "zod";
import { formatWeiToNumber } from "../lib/format-number.js";
import { RepayService } from "../services/repay.js";
import { WalletService } from "../services/wallet.js";
const repayParamsSchema = 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 repay."),
amount: z
.string()
.regex(/^\d+(\.\d+)?$/, { message: "Amount must be a valid number." })
.describe("The amount for the asset to repay in the FraxLend pool."),
});
export const repayTool = {
name: "FRAXLEND_REPAY",
description: "Repay borrowed assets to a FraxLend pool",
parameters: repayParamsSchema,
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_REPAY] Called with token ${args.pairAddress}, amount: ${args.amount}`);
try {
const walletService = new WalletService(walletPrivateKey, fraxtal);
const repayService = new RepayService(walletService);
const result = await repayService.execute({
pairAddress: args.pairAddress,
amount: BigInt(args.amount),
});
return `
✅ Repayment Transaction Successful
🔒 Amount: ${formatWeiToNumber(args.amount)} tokens
🔗 Transaction: ${result.txHash}
Your debt has been repaid to the FraxLend pool.
`;
}
catch (error) {
const message = error instanceof Error
? error.message
: "An unknown error occurred during the transaction.";
console.log(`[FRAXLEND_REPAY] Error: ${message}`);
throw new Error(`Failed to add collateral: ${message}`);
}
},
};
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