@securelend/sdk

Official SecureLend SDK for JavaScript and TypeScript.

Installation

npm install @securelend/sdk

Quick Start

import { SecureLend } from "@securelend/sdk";

const securelend = new SecureLend("sk_test_...");

// Compare business loans
const loans = await securelend.loans.compare({
  amount: 200000,
  purpose: "equipment",
  business: {
    revenue: 1200000,
    creditScore: 720,
    timeInBusiness: 36,
  },
});

console.log(`Found ${loans.summary.totalOffers} offers`);
console.log(`Best rate: ${loans.offers[0].terms.interestRate.rate}%`);

// Compare business banking
const banking = await securelend.banking.compare({
  accountType: "checking",
  monthlyRevenue: 100000,
  monthlyTransactions: 500,
});

// Compare business credit cards
const cards = await securelend.creditCards.compare({
  creditScore: 720,
  monthlySpend: 15000,
});

Documentation

• Full Documentation
• API Reference
• Guides

Features

• ✅ AI Native - Built on the Model Context Protocol for seamless integration with AI applications.
• ✅ Business Loans - Compare term loans, SBA loans, lines of credit
• ✅ Business Banking - Compare checking, savings, money market accounts
• ✅ Business Credit Cards - Compare rewards, cashback, and travel cards
• ✅ Insurance (coming soon) - Compare business insurance policies
• ✅ TypeScript - Full type safety with TypeScript definitions
• ✅ React Hooks - Available in @securelend/react
• ✅ Error Handling - Comprehensive error types
• ✅ Widgets - Supports interactive UI widgets from the MCP server.

Usage

Initialize Client

import { SecureLend } from "@securelend/sdk";

const securelend = new SecureLend("sk_test_...", {
  mcpURL: "https://mcp.securelend.ai/sse", // Optional
});

Compare Loans

const result = await securelend.loans.compare({
  amount: 200000,
  purpose: "working_capital",
  business: {
    revenue: 1200000,
    creditScore: 720,
    timeInBusiness: 36,
    industry: "Retail",
    entityType: "llc",
  },
  termPreferenceMonths: 60,
});

// Access best offer
const bestOffer = result.offers[0];
console.log(bestOffer.lender.name);
console.log(bestOffer.terms.interestRate.rate);
console.log(bestOffer.matching.approvalProbability);

Calculate Loan Payment

const calculation = await securelend.loans.calculate({
  amount: 200000,
  rate: 8.5,
  termMonths: 60,
  fees: {
    origination: 2000,
  },
});

console.log(`Monthly payment: $${calculation.monthlyPayment}`);
console.log(`Total interest: $${calculation.totalInterest}`);
console.log(`APR: ${calculation.apr}%`);

Error Handling

import {
  SecureLendError,
  AuthenticationError,
  RateLimitError
} from '@securelend/sdk';

try {
  // Connection can fail, or tool calls can fail
  const loans = await securelend.loans.compare({...});
} catch (error) {
  if (error instanceof AuthenticationError) {
    console.error('Invalid API key');
  } else if (error instanceof RateLimitError) {
    console.error('Rate limit exceeded, retry after:', error.retryAfter);
  } else if (error instanceof SecureLendError) {
    console.error('SecureLend error:', error.message);
    console.error('Error type:', error.type);
  } else {
    console.error('Unexpected error:', error);
  }
}

TypeScript Support

This package includes TypeScript definitions:

import type {
  LoanOffer,
  BankingAccount,
  CreditCardOffer,
  BusinessProfile,
} from "@securelend/sdk";

const business: BusinessProfile = {
  basic: {
    legalName: "Acme Corp",
    entityType: "llc",
  },
  financials: {
    revenue: {
      annual: { amount: 1200000 },
    },
  },
};

License

MIT