# Introduction

This is the documentation for Node RPC provider. Node RPC is Cost-effective and reliable Ethereum and Polygon JSON-RPC provider, offering a competitive solution for developers seeking an affordable alternative. Currently we are supporting all standard Ethereum API methods.

Examples in this documentation use public endpoints. Ideally, for your own projects, you should use your own API endpoint, which you can generate for free when connecting with your wallet [here](https://www.noderpc.xyz/).

Our public endpoints are:

* url: `https://api.noderpc.xyz/rpc-mainnet/public`

  Public endpoint for **Ethereum mainnet**
* url: `https://api.noderpc.xyz/rpc-polygon-pos/public`

  Public endpoint for **Polygon mainnet**
* url: `https://api.noderpc.xyz/rpc-sepolia/public` 

  Public endpoint for **Sepolia testnet**

For demonstration purposes, we are using well-known web3 library [ethers](https://github.com/ethers-io/ethers.js/) in our examples.