chainlist-rpc

Research

Discover EVM chains, RPC endpoints, native currencies, block explorers, and faucets using the Chainlist registry via Nethereum.DataServices

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Chainlist RPC Discovery

Discover EVM chain metadata from the Chainlist public registry using Nethereum.DataServices.

NuGet Package: Nethereum.DataServices

Installation

dotnet add package Nethereum.DataServices

Quick Start

using Nethereum.DataServices.Chainlist;

var chainlist = new ChainlistRpcApiService();

// Get all EVM chains
var allChains = await chainlist.GetAllChainsAsync();
Console.WriteLine(quot;Total EVM chains known: {allChains.Count}");

// Get a specific chain by ID
var ethereum = await chainlist.GetChainByIdAsync(1);
Console.WriteLine(quot;{ethereum.Name} (Chain ID: {ethereum.ChainId})");
Console.WriteLine(quot;Currency: {ethereum.NativeCurrency.Symbol}");

Available Methods

Method	Returns	Description
`GetAllChainsAsync()`	`List<ChainlistChainInfo>`	Full registry of all EVM chains
`GetChainByIdAsync(long chainId)`	`ChainlistChainInfo`	Single chain by numeric chain ID

ChainlistChainInfo Model

Property	Type	Description
`Name`	`string`	Chain name (e.g., "Ethereum Mainnet")
`Chain`	`string`	Short identifier (e.g., "ETH")
`ChainId`	`long`	Numeric chain ID
`NetworkId`	`long`	Network ID
`Rpc`	`List<ChainlistRpc>`	RPC endpoints with URL, Tracking, IsOpenSource
`NativeCurrency`	`ChainlistNativeCurrency`	Name, Symbol, Decimals
`Explorers`	`List<ChainlistExplorer>`	Block explorers with Name, Url, Standard
`Faucets`	`List<string>`	Testnet faucet URLs
`Features`	`List<ChainlistFeature>`	Supported features (e.g., EIP-1559)
`InfoURL`	`string`	Chain information page
`ShortName`	`string`	Short name for display

Chain Lookup

var polygon = await chainlist.GetChainByIdAsync(137);
Console.WriteLine(quot;Name:     {polygon.Name}");
Console.WriteLine(quot;Currency: {polygon.NativeCurrency.Symbol} ({polygon.NativeCurrency.Name})");
Console.WriteLine(quot;Decimals: {polygon.NativeCurrency.Decimals}");

RPC Endpoints

var ethereum = await chainlist.GetChainByIdAsync(1);
foreach (var rpc in ethereum.Rpc)
{
    Console.WriteLine(quot;URL: {rpc.Url}, Tracking: {rpc.Tracking}, OpenSource: {rpc.IsOpenSource}");
}

Block Explorers

foreach (var explorer in ethereum.Explorers)
    Console.WriteLine(quot;{explorer.Name}: {explorer.Url} (Standard: {explorer.Standard})");

Filtering Chains

var chains = await chainlist.GetAllChainsAsync();

// Testnets
var testnets = chains.Where(c => c.Name.Contains("Sepolia", StringComparison.OrdinalIgnoreCase)).ToList();

// Chains with EIP-1559
var eip1559 = chains.Where(c => c.Features?.Any(f => f.Name == "EIP1559") == true).ToList();

// By native currency
var ethChains = chains.Where(c => c.NativeCurrency?.Symbol == "ETH").ToList();

Key Namespaces

Nethereum.DataServices.Chainlist — Service and response models