ChangeNOW API with Klaytn and How Web3 Projects Can Use It

By ChangeNOW | ChangeNOW Crypto Blog | 12 Jul 2023

In the world of blockchain and cryptocurrency, the ability to quickly and easily exchange one digital asset for another is crucial. ChangeNOW is a platform that provides this service through their API, allowing businesses and individuals to swap cryptocurrencies without the need for an account or lengthy verification process. Now, with the integration of Klaytn, web3 projects can take advantage of even more benefits from using ChangeNOW API.  

Introduction to Klaytn

Klaytn is a public blockchain platform built by Ground X, a subsidiary of the South Korean tech giant, Kakao. The platform's main objective is to provide an easy-to-use and developer-friendly environment for building blockchain-based applications. Klaytn is designed to offer high performance, scalability, and security to its users.

One of the main advantages of Klaytn is its hybrid design, which combines the benefits of both public and private blockchains. Klaytn's consensus algorithm, called the Byzantine Fault Tolerance (BFT), is designed to ensure faster transaction processing while maintaining network security.


What is KLAY Token?

Klaytn (KLAY) is the native cryptocurrency of the Klaytn blockchain platform. KLAY is used to pay for transaction fees, smart contract execution fees, and other network-related expenses. KLAY can also be used as a medium of exchange for goods and services within the Klaytn ecosystem.

Overview of Klaytn Ecosystem

The Klaytn ecosystem comprises various components and services that work together to support the development and deployment of decentralized applications. These components include:

  • Klaytn mainnet: This is the main blockchain network where transactions are processed and verified.
  • Klaytn wallet: This is a digital wallet that allows users to securely store, send, and receive KLAY and other digital assets supported by the Klaytn network.
  • Klaytn API: This is a set of tools and interfaces that allow developers to interact with the Klaytn network and build decentralized applications.

Benefits of using ChangeNOW API with Klaytn

ChangeNOW is a non-custodial cryptocurrency exchange that allows users to swap one digital asset for another without having to create an account or go through a lengthy verification process. ChangeNOW's API provides a fast and secure way for developers to integrate cryptocurrency exchange functionality into their applications.

By integrating ChangeNOW API with Klaytn, Web3 projects can offer their users a seamless and hassle-free way to exchange digital assets within the Klaytn ecosystem. This can help to increase user engagement and retention, as users do not have to leave the platform to perform exchanges.

Another benefit of using ChangeNOW API with Klaytn is the ability to offer a wider range of digital assets for trading. ChangeNOW supports over 850 cryptocurrencies, which can be exchanged for KLAY or other digital assets supported by the Klaytn network. This can help Web3 projects to attract a wider user base, as users are more likely to use a platform that supports their preferred digital assets.

How Web3 projects can integrate ChangeNOW API with KLAY

Integrating ChangeNOW API with Klaytn is a straightforward process that involves the following steps:

  • Sign up for a ChangeNOW partnership account: Developers can sign up for a free API on the ChangeNOW website.
  • Generate API key: After signing up, developers can generate API key that will be used to authenticate requests to the ChangeNOW API.
  • Integrate the API: Developers can integrate the API into their web3 project using the provided documentation and code examples.

ChangeNOW API supports various programming languages, including JavaScript, Python, and Kotlin, making it easy for developers to integrate it into their preferred development stack.

Key features of ChangeNOW API

ChangeNOW API offers several key features that make it a popular choice among developers. These features include:

  1. Non-custodial exchange: ChangeNOW does not hold users' funds, which ensures that users have full control over their digital assets.
  2. Flexible fee structure: ChangeNOW's API allows partners to set their own fees, providing them with the ability to offer competitive exchange services and earn from 0.4% revenue of each transaction performed by their users.
  3. Instant exchanges: ChangeNOW's API is designed to provide instant exchanges, with most transactions completing within minutes.
  4. No limits: ChangeNOW does not impose any limits on the amount of digital assets that can be exchanged.

Use cases of ChangeNOW API with Klaytn

ChangeNOW's API can be used in various ways within the Klaytn ecosystem. Some potential use cases include:

  • Web3 wallets: Developers can integrate ChangeNOW's API into Web3 wallets to allow users to exchange digital assets within the wallet.
  • Decentralized exchanges: ChangeNOW's API can be integrated into decentralized exchanges built on the Klaytn network to provide users with a wider range of digital assets for trading.
  • Payment gateways: ChangeNOW's API can be used to facilitate cryptocurrency payments within the Klaytn ecosystem.


Integrating ChangeNOW API with Klaytn can provide numerous benefits to Web3 projects, including increased user engagement, wider asset support, and seamless exchange functionality. ChangeNOW's API is easy to integrate, supports various programming languages, and offers key features such as non-custodial exchanges and instant exchanges.

If you are a Web3 project looking to monetize your traffic, you can use KLAY to generate profit. By using KLAY token for traffic monetization, you can earn revenue by directing traffic to Klaytn-based applications and services.

In conclusion, ChangeNOW API with Klaytn offers a great opportunity for Web3 projects to enhance user experience and increase revenue potential.

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ChangeNOW is a non-custodial service created for simple and fast cryptocurrency exchanges. We strive for maximum safety, simplicity, and convenience. We do not store your funds or require any sort of account creation.

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