@iqai/mcp-bamm/dist/tools/repay.js

MCP server for bamm (borrow automated market maker)

import dedent from "dedent";
import { z } from "zod";
import formatNumber from "../lib/format-number.js";
import { RepayService } from "../services/repay.js";
import { WalletService } from "../services/wallet.js";
const repayToolParams = z.object({
    bammAddress: z
        .string()
        .regex(/^0x[a-fA-F0-9]{40}$/)
        .describe("The address of the BAMM contract"),
    amount: z.string().min(1).describe("The amount to repay"),
    borrowToken: z
        .string()
        .regex(/^0x[a-fA-F0-9]{40}$/)
        .optional()
        .describe("The address of the token to repay"),
    borrowTokenSymbol: z
        .string()
        .optional()
        .describe("The symbol of the token to repay (e.g., 'IQT')"),
});
export const repayTool = {
    name: "REPAY",
    description: "Repay borrowed tokens to a BAMM position",
    parameters: repayToolParams,
    execute: async (params) => {
        try {
            if (!params.borrowToken && !params.borrowTokenSymbol) {
                return "Error: Either borrowToken address or borrowTokenSymbol is required";
            }
            const privateKey = process.env.WALLET_PRIVATE_KEY;
            if (!privateKey) {
                return "Error: WALLET_PRIVATE_KEY environment variable is not set. Please set it with your wallet's private key (without 0x prefix).";
            }
            const walletService = new WalletService(privateKey);
            const repayService = new RepayService(walletService);
            const result = await repayService.execute({
                bammAddress: params.bammAddress,
                borrowToken: params.borrowToken,
                borrowTokenSymbol: params.borrowTokenSymbol,
                amount: params.amount,
            });
            return dedent `
        ✅ Repayment Successful

        🌐 BAMM Address: ${params.bammAddress}
        💸 Amount: ${formatNumber(Number(params.amount))}
        🪙 Token: ${params.borrowTokenSymbol ?? params.borrowToken}
        🔗 Transaction: ${result.txHash}

        Tokens have been repaid to your BAMM position.
      `;
        }
        catch (error) {
            if (error instanceof Error) {
                return dedent `
          ❌ Repayment Failed

          Error: ${error.message}

          Please verify your inputs and try again.
        `;
            }
            return "An unknown error occurred while repaying tokens";
        }
    },
};
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