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    2.7.4 • Public • Published
    Moralis JS SDK

    Moralis SDK (JavaScript / TypeScript)

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    A library that gives you access to the powerful Moralis Server backend from your JavaScript app.

    WARNING: This library is dedicated to back-end projects only. You should NOT use this library for a front-end project. Keep your API key secret and don't disclose it.


    • Web3 authentication
    • Make Evm api and Solana api calls
    • Consistent data types and utilities
    • Modular package: include only what you need
    • Fully Typescript ready out-of-the box

    ... and much more. Check out the official Moralis docs for more details.

    🚀 Quick start

    If you're new to Moralis, check the quickstart guide in the official docs on how to get started.

    If you're already familiar with Moralis and have your server set up. Then follow along to connect your SDK:

    1. Install Moralis

    The easiest way to integrate the Moralis SDK into your JavaScript project is through the npm module.

    Install the package via npm:

    npm install moralis

    or yarn:

    yarn add moralis

    Import Moralis:

    import Moralis from 'moralis';

    2. Initialize Moralis

    After your dependency is added, you simply need to initialize moralis via the start method:

      apiKey: 'YOUR_API_KEY',

    After that you can use any Moralis functionalities as described in our extensive docs

    ⭐️ Star us

    If this JS SDK helps you build your dapps faster - please star this project on Github, every star makes us very happy!

    🤝 Need help

    If you need help with setting up the boilerplate or have other questions - don't hesitate to write in our community forum and we will check asap. Forum link. The best thing about this SDK is the super active community ready to help at any time! We help each other.

    🧭 Table of Contents

    ⚙️ Configuration

    When calling Moralis.start, you can include a configuration object.

    👩‍🔬 Advanced setup

    It's possible to install all functionalities of Moralis by installing moralis as a dependency. But, you may choose to only install certain modules (as listed below).

    1. Install the dependencies

    Instead of installing moralis you can need to install the packages that you want to use. You always need to install the @moralisweb3/core package. For example:

    yarn add @moralisweb3/core @moralisweb3/evm @moralisweb3/evm-api @moralisweb3/evm-wallet-connect-connector

    Then at the top of your code (before any interaction with Moralis), you need to register the modules to the core package

    import MoralisCore from '@moralisweb3/core';
    import MoralisEvmApi from '@moralisweb3/evm-api';
    const core = MoralisCore.create();
    // Register all imported modules to the @moralisweb3/core module

    Then, initialize the app the same way as when using the umbrella moralis package. You only need to provide configuration that is required by the packages. So if you don't include an api package, then you might not need to include the apiKey.

      apiKey: 'YOUR_API_KEY',
      // ...and any other configuration

    Now you can use any functionality from the installed modules. The only difference is that you need to call in your code:

    import MoralisEvmApi from '@moralisweb3/evm-api';
    const evmApi = core.getModule<MoralisEvmApi>(MoralisEvmApi.moduleName);

    Instead of

    import Moralis from 'moralis';

    Of course you are free to combine the modules in a single object, and use that in your dapp.

    // moralis.ts
    import { MoralisCore } from '@moralisweb3/core';
    import EvmApi from '@moralisweb3/evm-api';
    const core = MoralisCore.create();
    const evmApi = EvmApi.create(core);
    export const Moralis = {
      EvmApi: evmApi,
    // app.ts
    import { Moralis } from './moralis/';

    📦 Packages

    Umbrella package

    package Changelog Description
    moralis Umbrella package that includes all packages and initializes them

    Core module

    The core module is required in all applications. It will handle global dependencies and communications between other packages.

    package Changelog Description
    @moralisweb3/core Core logic, responsible for core logic and sharing state and events between packages


    package Changelog Description
    @moralisweb3/evm-utils Utility functions and datatypes for EVM chains.
    @moralisweb3/sol-utils Utility functions and datatypes for Solana networks.
    @moralisweb3/api-utils Generic functions, used in all api logic within the SDK.

    Moralis functionalities

    package Changelog Description
    @moralisweb3/evm-api Fetch data from an EVM chain
    @moralisweb3/sol-api Fetch data from a Solana network
    @moralisweb3/auth Handle authentication


    package Changelog Description
    @moralisweb3/eslint-config - Eslint configuration that is used within Moralis

    🧙‍♂️ Community


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