@iqai/mcp-fraxlend/dist/services/lending-stats.js

Mcp server for Fraxlend access

import dedent from "dedent";
import { graphql } from "gql.tada";
import { formatEther, formatUnits } from "viem";
import { client } from "../lib/graphql.js";
const LENDING_PAIRS_QUERY = graphql(`
  query GetLendingPairs {
    pairs(first: 100) {
      id
      name
      symbol
      address
      asset {
        symbol
        decimals
				address
      }
			collateral {
				symbol
				decimals
				address
			}
      dailyHistory(first: 1, orderBy: timestamp, orderDirection: desc) {
        interestPerSecond
        utilization
        totalAssetAmount
        totalBorrowAmount
        timestamp
      }
    }
  }
`);
export class LendingStatsService {
    async getStats() {
        try {
            // biome-ignore lint/suspicious/noExplicitAny: <explanation>
            const data = await client.request(LENDING_PAIRS_QUERY);
            // biome-ignore lint/suspicious/noExplicitAny: <explanation>
            return data.pairs.map((pair) => ({
                address: pair.id,
                symbol: pair.symbol,
                asset: pair.asset,
                collateral: pair.collateral,
                apr: this.calculateApr(pair.dailyHistory[0].interestPerSecond),
                utilization: pair.dailyHistory[0].utilization,
                totalSupply: pair.dailyHistory[0].totalAssetAmount,
                decimals: pair.asset.decimals,
            }));
        }
        catch (error) {
            throw new Error(`Failed to fetch lending stats: ${error.message}`);
        }
    }
    calculateApr(interestPerSecond) {
        const interestRate = Number(formatEther(BigInt(interestPerSecond)));
        const SECONDS_PER_YEAR = 365 * 24 * 60 * 60;
        const apr = interestRate * SECONDS_PER_YEAR * 100;
        return Number(apr.toFixed(2));
    }
    formatStats(stats) {
        if (stats.length === 0) {
            return dedent `
				📊 FraxLend Statistics

				No active lending pools found.
			`;
        }
        const formattedStats = stats
            // biome-ignore lint/suspicious/noExplicitAny: <explanation>
            .map((pool) => {
            const formattedSupply = Number(formatUnits(BigInt(pool.totalSupply), pool.decimals)).toFixed(3);
            const formattedUtilization = (Number(pool.utilization) / 100).toFixed(2);
            return dedent `
					🏦 ${pool.symbol}
					├ 🔗 Address: ${pool.address}
					├ 📈 APR: ${pool.apr}%
					├ 📊 Utilization: ${formattedUtilization}%
					└ 📊 Total Supply: ${formattedSupply}
					└ 🏷️ Asset symbol: ${pool.asset.symbol}
					└ 🏷️ Collateral symbol: ${pool.collateral.symbol}
					└ 🔗 Asset address: ${pool.asset.address}
					└ 🔗 Collateral address: ${pool.collateral.address}
				`;
        })
            .join("\n\n");
        return dedent `
			📊 FraxLend Pool Statistics
			═══════════════════════════

			${formattedStats}

			Last Updated: ${new Date().toLocaleString()}
		`;
    }
}
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