Jupiter API - Cryptoscan

A TypeScript wrapper for Jupiter DEX API on Solana blockchain with proxy support and rate fetching capabilities.

Current Price: $120 Contacts: https://t.me/dan_cryptoscan

What you get:

• Free setup into your hosting

• Free help to integrate app to your server

• Full access to the codebase and code updates

• Free updates for app, you can request for free updates via access to issues

• Full access to Project Time tracking by developers

Features

• Get exchange rates for Solana tokens

• Create swap transactions

• Automatic retry mechanism for failed requests

• Proxy support for requests

• Price impact and fee calculations

• Multi-route swaps support

Installation

npm install jupiter-api
# or
bun install jupiter-api

Usage

Basic Setup

import { jupiterApi } from 'jupiter-api';

// The API is pre-configured with default settings
// Including proxy support via @javeoff/proxy-fetch

Getting Exchange Rates

// Get rate for token swap
const rate = await jupiterApi.getRate({
  from: "USDC_ADDRESS", // Optional, defaults to USDC
  to: "TARGET_TOKEN_ADDRESS",
  amount: 1, // Optional, defaults to 1
  slippage: 1 // Optional, defaults to 1%
});

Creating a Transaction

const transaction = await jupiterApi.createTransaction({
  from: "SOURCE_TOKEN_ADDRESS",
  to: "TARGET_TOKEN_ADDRESS",
  amount: 1,
  walletAddress: "YOUR_WALLET_ADDRESS"
});

Rate Response Structure

The getRate method returns a Rate object with the following structure:

{
  network: "solana",
  service: "jupiter",
  price: number,
  priceUSD: number,
  amount: number,
  amountUSD: number,
  liquidityUSD: number,
  fromAddress: string,
  toAddress: string,
  fee: number,
  feeUSD: number,
  impact: number,
  routes: [
    {
      service: string,
      percentage: number,
      price: number,
      fee: number,
      feeUSD: number,
      priceUSD: number
    }
  ]
}

API Endpoints

The service exposes two HTTP endpoints:

GET /

Gets the exchange rate for specified tokens

Query Parameters:

• from (optional): Source token address (defaults to USDC)

• to: Target token address

• amount (optional): Amount to swap (defaults to 1)

• slippage (optional): Slippage tolerance in percentage (defaults to 1)

GET /createTransaction

Creates a swap transaction

Query Parameters:

• from: Source token address

• to: Target token address

• amount: Amount to swap

• walletAddress: Solana wallet address

Development

# Install dependencies
bun install

# Start the development server
bun start

Dependencies

• @cryptoscan/solana-sdk: Solana blockchain interaction

• @javeoff/proxy-fetch: Proxy support for API requests

• bs58: Base58 encoding/decoding

• hono: HTTP server framework

• p-retry: Retry mechanism for failed requests

License

ISC