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io.github.rog0x/crypto

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Hash, encode, UUID, password analysis for AI agents

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @rog0x/mcp-crypto-tools
Claude Code 
claude mcp add crypto -- npx -y @rog0x/mcp-crypto-tools@1.0.2
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "crypto": {
            "command": "npx",
            "args": [
                "-y",
                "@rog0x/mcp-crypto-tools@1.0.2"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. mcp-crypto-tools
  2. Tools
  3. Setup
  4. MCP Configuration
  5. Dependencies
  6. License

mcp-crypto-tools

Cryptography and encoding tools for AI agents, served via the Model Context Protocol (MCP).

Tools

hash

Hash text using MD5, SHA-1, SHA-256, SHA-512, or HMAC. Compare two hash values. Compute all algorithms at once.

Actions: hash, hmac, compare, hash_all

encode_decode

Encode and decode text using Base64, URL encoding, HTML entities, hex, or binary. Auto-detect encoding format.

Actions: base64_encode, base64_decode, url_encode, url_decode, html_encode, html_decode, hex_encode, hex_decode, binary_encode, binary_decode, detect

generate_id

Generate unique identifiers: UUID v4, nanoid, ULID, CUID, or random strings with configurable length and charset.

Types: uuid, nanoid, ulid, cuid, random

password

Generate secure passwords with configurable character sets, length, and count. Check password strength with entropy calculation and crack time estimation.

Actions: generate, check_strength

jwt

Decode JWT tokens to inspect header and payload, check expiry status, or create unsigned JWTs for testing.

Actions: decode, check_expiry, create_unsigned

Setup

npm install
npm run build

MCP Configuration

Add to your MCP client configuration:

{
  "mcpServers": {
    "crypto-tools": {
      "command": "node",
      "args": ["D:/products/mcp-servers/mcp-crypto-tools/dist/index.js"]
    }
  }
}

Dependencies

  • @modelcontextprotocol/sdk - MCP server framework
  • Node.js built-in crypto module - all cryptographic operations

No external crypto libraries required.

License

MIT

Frequently asked questions

What is io.github.rog0x/crypto?

Hash, encode, UUID, password analysis for AI agents

How do I install io.github.rog0x/crypto?

It runs on your machine. In Claude Code: claude mcp add crypto -- npx -y @rog0x/mcp-crypto-tools@1.0.2. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.rog0x/crypto need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.rog0x/crypto open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains io.github.rog0x/crypto?

It is published by rog0x. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.