Agent skill

Chainlist Rpc

by Nethereum in Nethereum/Nethereum

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

MITAuto-check passedBackend & APIs

Install Chainlist Rpc

skills CLI
$ npx skills add Nethereum/Nethereum --skill chainlist-rpc -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Nethereum/Nethereum chainlist-rpc --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Nethereum/Nethereum.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/nethereum-skills/skills/chainlist-rpc .claude/skills/chainlist-rpc && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
chainlist-rpc
GitHub stars
2.3k
Token cost
~842 tokens
SKILL.md length
135 words
Files
1
Skills in repo
71
Repo updated
First seen
Licence
MIT

At a glance

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

  • Tasks that involve Smart contracts
  • SKILL.md covers Installation, Quick Start, Available Methods and ChainlistChainInfo Model, plus 6 more sections
  • Calls dotnet

What it does

Chainlist Rpc is an agent skill from Nethereum/Nethereum. Discover EVM chains, RPC endpoints, native currencies, block explorers, and faucets using the Chainlist registry via Nethereum.DataServices

Its SKILL.md is about 840 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Backend & APIs, covering Smart contracts. The repository describes itself as: Ethereum .Net cross platform integration library. The licence is MIT.

When your agent uses it

  • Tasks that involve Smart contracts

Example prompts

  • “/chainlist-rpc”

What it can do on your machine

Read from SKILL.md and the folder at commit 229f278. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • dotnet

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • nethereum.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Chainlist Rpc loads about 842 tokens when it runs. Until then it costs about 38 tokens; SKILL.md has 135 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~38
When it runs · the whole SKILL.md, loaded when a task matches
~842

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Nethereum/Nethereum at commit 229f278, republished under its MIT licence (© Nethereum). 135 words, ~842 tokens.

Download SKILL.mdSave it as .claude/skills/chainlist-rpc/SKILL.md (or your agent's skills folder).
name
chainlist-rpc
description
Discover EVM chains, RPC endpoints, native currencies, block explorers, and faucets using the Chainlist registry via Nethereum.DataServices
user-invocable
true

Chainlist RPC Discovery

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

NuGet Package: Nethereum.DataServices

Installation

bash
dotnet add package Nethereum.DataServices

Quick Start

csharp
using Nethereum.DataServices.Chainlist;

var chainlist = new ChainlistRpcApiService();

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

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

Available Methods

MethodReturnsDescription
GetAllChainsAsync()List<ChainlistChainInfo>Full registry of all EVM chains
GetChainByIdAsync(long chainId)ChainlistChainInfoSingle chain by numeric chain ID

ChainlistChainInfo Model

PropertyTypeDescription
NamestringChain name (e.g., "Ethereum Mainnet")
ChainstringShort identifier (e.g., "ETH")
ChainIdlongNumeric chain ID
NetworkIdlongNetwork ID
RpcList<ChainlistRpc>RPC endpoints with URL, Tracking, IsOpenSource
NativeCurrencyChainlistNativeCurrencyName, Symbol, Decimals
ExplorersList<ChainlistExplorer>Block explorers with Name, Url, Standard
FaucetsList<string>Testnet faucet URLs
FeaturesList<ChainlistFeature>Supported features (e.g., EIP-1559)
InfoURLstringChain information page
ShortNamestringShort name for display

Chain Lookup

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

RPC Endpoints

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

Block Explorers

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

Filtering Chains

csharp
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

Documentation

© Nethereum, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in plugins/nethereum-skills/skills/chainlist-rpc of Nethereum/Nethereum.

Open the folder on GitHubat commit 229f278

Compare with similar skills

Chainlist Rpc next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Chainlist Rpc compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Chainlist Rpc this skillNethereum/Nethereum2.3k—~842Automated safety check: PassMIT
Fizz Convertpashov/skills1.2k2 repos~3.7kAutomated safety check: PassMIT
Solana Devsolana-foundation/solana-dev-skill574—~3.8kAutomated safety check: PassMIT
Feynman Auditor0xiehnnkta/nemesis-auditor2431 repos~11kAutomated safety check: PassMIT
Smart Contract Auditgreatpie/smart-contract-audit-skill101—~1.1kAutomated safety check: PassNone
RadarAuditware/radar154—~2.1kAutomated safety check: PassGPL-3.0

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Categories

Questions about Chainlist Rpc

What does Chainlist Rpc do?

Discover EVM chains, RPC endpoints, native currencies, block explorers, and faucets using the Chainlist registry via Nethereum.DataServices. Chainlist Rpc is an agent skill from Nethereum/Nethereum.

When should I use Chainlist Rpc?

Chainlist Rpc fits situations like: tasks that involve Smart contracts.

How do I install Chainlist Rpc in Claude Code?

Run `npx skills add Nethereum/Nethereum --skill chainlist-rpc -a claude-code`. Or copy the skill folder (plugins/nethereum-skills/skills/chainlist-rpc in Nethereum/Nethereum) into .claude/skills/chainlist-rpc in your project. Claude Code loads it when a task matches its description.

How do I install Chainlist Rpc in Codex?

Run `npx skills add Nethereum/Nethereum --skill chainlist-rpc -a codex`. Or copy the skill folder (plugins/nethereum-skills/skills/chainlist-rpc in Nethereum/Nethereum) into .agents/skills/chainlist-rpc in your project. Codex loads it when a task matches its description.

Can I use Chainlist Rpc in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Nethereum/Nethereum --skill chainlist-rpc -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/chainlist-rpc, .gemini/skills/chainlist-rpc, .github/skills/chainlist-rpc and .opencode/skills/chainlist-rpc in your project.

What does Chainlist Rpc need to run?

Going by SKILL.md and its folder, Chainlist Rpc needs the command-line tools its instructions call (dotnet).

Does Chainlist Rpc access the network?

SKILL.md names 1 domain. As links in the text: nethereum.com. This is read from the text; nothing was executed.

Is Chainlist Rpc safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Chainlist Rpc use?

Chainlist Rpc is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Chainlist Rpc use?

About 842 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Chainlist Rpc?

Skills that share tags, products or a category with Chainlist Rpc: Fizz Convert (pashov/skills, 1.2k stars), Solana Dev (solana-foundation/solana-dev-skill, 574 stars), Feynman Auditor (0xiehnnkta/nemesis-auditor, 243 stars) and Smart Contract Audit (greatpie/smart-contract-audit-skill, 101 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Chainlist Rpc?

Nethereum (a GitHub organization) maintains it in Nethereum/Nethereum, which has 2,260 GitHub stars. The repository holds 71 skills in this directory. The repository was last updated on October 5, 2026.

Source: Nethereum/Nethereum on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.