Agent skill

Keystore

Encrypt and decrypt Ethereum private keys using Web3 Secret Storage (keystore JSON files) with Nethereum.

MITAuto-check passedBusiness, Finance & HR

Install Keystore

skills CLI

$ npx skills add Nethereum/Nethereum --skill keystore -a claude-code

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

GitHub CLI

$ gh skill install Nethereum/Nethereum keystore --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/keystore .claude/skills/keystore && 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/

Paste into Claude Code

Install the "keystore" agent skill from https://github.com/Nethereum/Nethereum/tree/master/plugins/nethereum-skills/skills/keystore into .claude/skills/keystore/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "keystore", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/Nethereum/Nethereum/tree/master/plugins/nethereum-skills/skills/keystore

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add Nethereum/Nethereum --skill keystore -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Nethereum/Nethereum keystore --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Nethereum/Nethereum.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/nethereum-skills/skills/keystore .agents/skills/keystore && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "keystore" agent skill from https://github.com/Nethereum/Nethereum/tree/master/plugins/nethereum-skills/skills/keystore into .agents/skills/keystore/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "keystore", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Nethereum/Nethereum --skill keystore -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Nethereum/Nethereum keystore --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Nethereum/Nethereum.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/nethereum-skills/skills/keystore .cursor/skills/keystore && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "keystore" agent skill from https://github.com/Nethereum/Nethereum/tree/master/plugins/nethereum-skills/skills/keystore into .cursor/skills/keystore/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "keystore", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/Nethereum/Nethereum.git --path plugins/nethereum-skills/skills/keystore

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Nethereum/Nethereum --skill keystore -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Nethereum/Nethereum keystore --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Nethereum/Nethereum.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/nethereum-skills/skills/keystore .gemini/skills/keystore && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "keystore" agent skill from https://github.com/Nethereum/Nethereum/tree/master/plugins/nethereum-skills/skills/keystore into .gemini/skills/keystore/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "keystore", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install Nethereum/Nethereum keystore

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add Nethereum/Nethereum --skill keystore -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

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

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "keystore" agent skill from https://github.com/Nethereum/Nethereum/tree/master/plugins/nethereum-skills/skills/keystore into .github/skills/keystore/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "keystore", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Nethereum/Nethereum --skill keystore -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Nethereum/Nethereum keystore --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Nethereum/Nethereum.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/nethereum-skills/skills/keystore .opencode/skills/keystore && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "keystore" agent skill from https://github.com/Nethereum/Nethereum/tree/master/plugins/nethereum-skills/skills/keystore into .opencode/skills/keystore/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "keystore", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: keystore
GitHub stars: 2.3k
Token cost: ~561 tokens
SKILL.md length: 26 words
Files: 1
Skills in repo: 71
Repo updated: Oct 5, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Encrypt and decrypt Ethereum private keys using Web3 Secret Storage (keystore JSON files) with Nethereum.

The user asks about encrypting private keys
SKILL.md covers Encrypt (Scrypt — recommended), Encrypt (PBKDF2 — legacy), Decrypt and Detect KDF Type, plus 1 more section
Calls dotnet
Web3 secret storage

What it does

Keystore is an agent skill from Nethereum/Nethereum. Encrypt and decrypt Ethereum private keys using Web3 Secret Storage (keystore JSON files) with Nethereum. Use this skill whenever the user asks about encrypting private keys, keystore files, Web3 secret storage, Scrypt encryption, PBKDF2, password-protected keys, key encryption, or loading encrypted wallets in C/.NET.

Its SKILL.md is about 560 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 Business, Finance & HR, covering Crypto and DeFi analysis. It works with C#, .NET and Ethereum. The repository describes itself as: Ethereum .Net cross platform integration library. The licence is MIT.

When your agent uses it

The user asks about encrypting private keys
Web3 secret storage
Scrypt encryption
Password-protected keys

Example prompts

“/keystore”

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):
- docs.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

Keystore loads about 561 tokens when it runs. Until then it costs about 82 tokens; SKILL.md has 26 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~82
When it runs · the whole SKILL.md, loaded when a task matches: ~561

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). 26 words, ~561 tokens.

Download SKILL.mdSave it as .claude/skills/keystore/SKILL.md (or your agent's skills folder).

name: keystore
description: Encrypt and decrypt Ethereum private keys using Web3 Secret Storage (keystore JSON files) with Nethereum. Use this skill whenever the user asks about encrypting private keys, keystore files, Web3 secret storage, Scrypt encryption, PBKDF2, password-protected keys, key encryption, or loading encrypted wallets in C#/.NET.
user-invocable: true

KeyStore Files with Nethereum

NuGet: Nethereum.KeyStore

bash

dotnet add package Nethereum.KeyStore

Encrypt (Scrypt — recommended)

csharp

using Nethereum.KeyStore;
using Nethereum.Signer;

var ecKey = EthECKey.GenerateKey();
var address = ecKey.GetPublicAddress();
var privateKeyBytes = ecKey.GetPrivateKeyAsBytes();

var keyStoreService = new KeyStoreScryptService();
var json = keyStoreService.EncryptAndGenerateKeyStoreAsJson(
    "your-strong-password", privateKeyBytes, address);

File.WriteAllText($"keystore-{address}.json", json);

Custom Scrypt Parameters

csharp

// Light: N=32 (fast — for WASM, mobile, tests)
var scryptParams = new ScryptParams { N = 32, R = 8, P = 6 };
var json = keyStoreService.EncryptAndGenerateKeyStoreAsJson(
    "password", privateKeyBytes, address, scryptParams);

Encrypt (PBKDF2 — legacy)

csharp

var keyStoreService = new KeyStorePbkdf2Service();
var json = keyStoreService.EncryptAndGenerateKeyStoreAsJson(
    "password", privateKeyBytes, address);

Decrypt

csharp

var json = File.ReadAllText("keystore-file.json");

// Auto-detect KDF type
var keyStoreService = new KeyStoreService();
var privateKeyBytes = keyStoreService.DecryptKeyStoreFromJson("your-password", json);
var account = new Nethereum.Web3.Accounts.Account(privateKeyBytes, chainId: 1);

Detect KDF Type

csharp

var kdfType = KeyStoreKdfChecker.GetKdfType(json);
// Returns "scrypt" or "pbkdf2"

Default Service

csharp

var service = new KeyStoreService();

// Encrypt (Scrypt default)
var json = service.EncryptAndGenerateDefaultKeyStoreAsJson(
    "password", privateKeyBytes, address);

// Decrypt (auto-detect)
var key = service.DecryptKeyStoreFromJson("password", json);

For full documentation, see: https://docs.nethereum.com/docs/signing-and-key-management/guide-keystore

Files

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

Open the folder on GitHubat commit 229f278

Compare with similar skills

Keystore 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.

Keystore compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Keystore this skillNethereum/Nethereum	2.3k	—	~561	Automated safety check: Pass	MIT	3 days ago
Swapper Depositswapperfinance/swapper-toolkit	852	—	~1.8k	Automated safety check: Pass	MIT	6 mo ago
SurfBlockRunAI/ClawRouter	6.6k	—	~4k	Automated safety check: Pass	MIT	3 days ago
Notebook To Strategytradingstrategy-ai/trade-executor	160	—	~1.1k	Automated safety check: Pass	Custom licence	today
Building Blocksaustintgriffith/ethskills	294	—	~2.9k	Automated safety check: Pass	None	1 mo ago
Nft Standardswshobson/agents	40k	11 repos	~1.9k	Automated safety check: Pass	MIT	3 days ago

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Works with

Questions about Keystore

What does Keystore do?

Encrypt and decrypt Ethereum private keys using Web3 Secret Storage (keystore JSON files) with Nethereum. Keystore is an agent skill from Nethereum/Nethereum. Encrypt and decrypt Ethereum private keys using Web3 Secret Storage (keystore JSON files) with Nethereum.

When should I use Keystore?

Keystore fits situations like: the user asks about encrypting private keys; web3 secret storage; scrypt encryption; password-protected keys.

How do I install Keystore in Claude Code?

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

How do I install Keystore in Codex?

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

Can I use Keystore 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 keystore -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/keystore, .gemini/skills/keystore, .github/skills/keystore and .opencode/skills/keystore in your project.

What does Keystore need to run?

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

Does Keystore access the network?

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

Is Keystore 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 Keystore use?

Keystore 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 Keystore use?

About 561 tokens (SKILL.md is roughly 2.2k 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 Keystore?

Skills that share tags, products or a category with Keystore: Swapper Deposit (swapperfinance/swapper-toolkit, 852 stars), Surf (BlockRunAI/ClawRouter, 6.6k stars), Notebook To Strategy (tradingstrategy-ai/trade-executor, 160 stars) and Building Blocks (austintgriffith/ethskills, 294 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Keystore?

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.

Install Keystore

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

KeyStore Files with Nethereum

Encrypt (Scrypt — recommended)

Custom Scrypt Parameters

Encrypt (PBKDF2 — legacy)

Decrypt

Detect KDF Type

Default Service

Files

Compare with similar skills

Similar skills

More from Nethereum/Nethereum

Related

Questions about Keystore