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Polygon zkEVM RPC

With QuickNode, you get access to our global network which always routes your API requests to the nearest available location, ensuring low latency and fastest speeds.
Beta

Overview

At QuickNode, we are currently running Polygon zkEVM RPC endpoints in Beta. In aggregate, we serve hundreds of billions of requests every month. To make it easier for developers to integrate with QuickNode, we've created this documentation that shows how to call RPC methods using cURL, JavaScript, Python, Ruby and any applicable Web3 SDKs. QuickNode-supported Polygon zkEVM APIs include:

  • Ethereum JSON-RPC API
  • Debug API
  • Polygon zkEVM JSON-RPC API
  • Marketplace Add-Ons

Polygon zkEVM Network Support

NetworkWSSHTTPS
TESTNET
MAINNET

Making Polygon zkEVM API Requests

In this documentation, you will see example requests made with various programming languages and Web3 SDKs for each supported Polygon zkEVM method. This section will explain how to execute each one of them on your machine.

QuickNode SDK

To run the QuickNode SDK code examples, you'll need to have the QuickNode SDK installed. You can find out more about the QuickNode SDK at the getting started page. If you'd like to use it, please be sure to install it like so:

npm install @quicknode/sdk

cURL

Most *nix based systems have cURL support out of the box. cURL is a command line tool and library for transferring data with URLs. Check if you have it by running the following:

curl -h

Python

To run our Python code examples, you'll need to have Python installed as well as the requests package. You can install this package with the following command:

python -m pip install requests

JavaScript

To run our JavaScript code examples, you'll need to have Node v18 and up installed. You can follow this official document to install the latest, stable version of Node globally. Check if you have it by running the following:

node -v

Ruby

To run our Ruby code examples, you'll need to have Ruby installed. You can follow this official installation document for more information. Check if you have it by running the following:

ruby -v

Web3.py

Web3.py is a Python library for interacting with Ethereum. If you'd like to use it, please be sure to install it like so:

pip install web3

Ethers.js

At QuickNode we prefer ethers.js as our JS library for interacting with JSON-RPCs when possible. Ethers aims to be a complete and compact library for interacting with the Ethereum Blockchain and its ecosystem. If you'd like to use it, please be sure to install it like so:

npm install --save ethers

WebSocket cat (wscat)

WebSocket cat (wscat) is a simple tool for connecting to WebSocket APIs in your terminal. Install it using the following command:

npm install -g wscat
info

If you're seeking an alternative to WebSocket cat (wscat), QuickNode's QuickAlerts provide a solution for setting up real-time notifications for any type of blockchain activity. To learn more about QuickAlerts, check out this QuickNode guide.

Web3.js

There is also Web3.js - it's a collection of libraries that allow you to interact with a local or remote ethereum node using HTTP, IPC or WebSocket. If you'd like to use it, please be sure to install it like so:

npm install web3

Eth.rb

Eth.rb is a comprehensive ruby library that provides a high-level interface to interact with the Ethereum blockchain, making it easier for developers to manage accounts, send transactions, and work with smart contracts. If you'd like to use it, please be sure to install it like so:

gem install eth

API Credits

Usage in our pricing plans is measured in API Credits. To learn more about the API Credits for Polygon zkEVM, please visit this page.

Endpoint Authentication Options

Token Authentication

By default, all endpoints created on QuickNode are protected by a token in the URL which looks something like this:

http://sample-endpoint-name.network.quiknode.pro/token-goes-here/

Approved Referrer List

For endpoints on the shared network, you are able to add a list of approved referrers. This requires any HTTP request to send a REFERRER header or any WebSocket request to send an ORIGIN header populated with one of the referrers you entered into our user panel.

Disabling Token Authentication

You can also disable the token authentication completely in your security settings for a given endpoint. This will allow anyone to make requests to the endpoint without the token.

JWT (JSON Web Tokens)

For additional security, you can also enable JWT for each of your deployed endpoints. JWT allows for stateless authentication between you and your endpoint. Learn how to use JWT with QuickNode in this step-by-step guide.

Multiple Authentication Tokens

Create multiple authentication tokens for each of your deployed endpoints. This allows you to revoke any tokens that may be comprised, without needing to restart your non-compromised endpoint.

To roll an individual authentication token, create an additional token and then delete the previous token. Learn more about multiple authentication tokens in this QuickNode guide.

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