Ethereum Keystore Encryption MCP Server

A Model Context Protocol (MCP) server for Ethereum keystore encryption, decryption, and management following the Web3 Secret Storage Definition Version 3 standard. Its 9 documented tools cover keystore, file, encrypt.

People connecting this server to Claude, Cursor, VS Code, or another MCP client. The project is written in HTML.

One of 5 MCP servers published from nirholas/ethereum-wallet-toolkit. Stars and repository activity are shared across all of them. See all 5 →

VERIFIED ACTIVE

LAST COMMIT 2026-08-17 · VERIFIED 2026-08-25

NOASSERTION · HTML · how we verify → /methodology

01 · Install Ethereum Keystore Encryption

Claude Code

claude mcp add nirholas-ethereum-wallet-toolkit-keystor -- uvx keystore-mcp-server

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "nirholas-ethereum-wallet-toolkit-keystor": {
      "command": "uvx",
      "args": [
        "keystore-mcp-server"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license no standard license detected - usage rights unclear; check the repo before commercial use

pypi package keystore-mcp-server - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.nirholas is GitHub-verified and matches the repo owner

03 · What Ethereum Keystore Encryption can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can save keystore with standard Ethereum naming, load and validate keystore files, extract metadata without decryption, and validate keystore structure.

Capability map

Tools grouped from the project's README - what Ethereum Keystore Encryption lets an agent do.

Encrypt

1 tool - e.g. Encrypt private key to Web3 Secret Storage V3 format

encrypt_keystore

Decrypt

1 tool - e.g. Decrypt keystore to recover private key

decrypt_keystore

Save

1 tool - e.g. Save keystore with standard Ethereum naming

save_keystore_file

Load

1 tool - e.g. Load and validate keystore files

load_keystore_file

read & search

1 tool - e.g. Extract metadata without decryption

get_keystore_info

Validate

1 tool - e.g. Validate keystore structure

validate_keystore

Change

1 tool - e.g. Change password and optionally upgrade KDF

change_keystore_password

Batch

1 tool - e.g. Encrypt multiple wallets

batch_encrypt_keystores

04 · Who maintains Ethereum Keystore Encryption

Ethereum Keystore Encryption is maintained by nirholas. We track 66 MCP servers from nirholas - 65 actively maintained, 7,658 combined GitHub stars, oldest repo from Feb 2024. Full record: all servers from nirholas.

05 · Facts

repository: github.com/nirholas/ethereum-wallet-toolkit
category: other - actively maintained as of 2026-08-25.
registry: io.github.nirholas/keystore-mcp-server (active, first published 2026-01-20)
packages: pypi:keystore-mcp-server

06 · Ethereum Keystore Encryption FAQ

Is Ethereum Keystore Encryption still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-17. We re-verify nightly.

What can Ethereum Keystore Encryption do?

With this server connected, an agent can save keystore with standard Ethereum naming, load and validate keystore files, extract metadata without decryption, and validate keystore structure.

How do I install Ethereum Keystore Encryption?

Run `uvx keystore-mcp-server`. You can also paste the ready-made client config above.

Does Ethereum Keystore Encryption run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Ethereum Keystore Encryption

Alternatives to Ethereum Keystore Encryption

Maintained other servers if Ethereum Keystore Encryption isn't the fit.

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