MCP Cryptography

MCP server exposing cryptography library functionality

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

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Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "mcp-cryptography": {
      "command": "uvx",
      "args": [
        "mcp-cryptography"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

mcp-cryptography

MCP server exposing cryptography library functionality.

mcp-name: io.github.daedalus/mcp-cryptography

Install

Terminal

pip install mcp-cryptography

Usage

server.ts

from mcp_cryptography import mcp

# Run the MCP server
if __name__ == "__main__":
    mcp.run()

Available Tools

The server provides the following cryptographic tools:

Key Generation

generate_symmetric_key - Generate a Fernet symmetric key
generate_rsa_key - Generate an RSA key pair
generate_x25519_key - Generate an X25519 key pair

Symmetric Encryption

fernet_encrypt / fernet_decrypt - Fernet encryption
aes_encrypt / aes_decrypt - AES encryption (CBC/GCM modes)

Asymmetric Encryption

rsa_encrypt / rsa_decrypt - RSA OAEP encryption
rsa_sign / rsa_verify - RSA digital signatures

Hashing

hash_sha256 - SHA-256 hash
hash_sha512 - SHA-512 hash
hash_sha1 - SHA-1 hash

HMAC

hmac_sign - Generate HMAC
hmac_verify - Verify HMAC

Key Derivation

pbkdf2_derive - PBKDF2 key derivation
scrypt_derive - Scrypt key derivation

X.509 Certificates

generate_self_signed_cert - Generate self-signed certificate
parse_certificate - Parse X.509 certificate

Utilities

generate_random_bytes - Generate random bytes
generate_random_base64 - Generate random base64 bytes

Development

bash

git clone https://github.com/daedalus/mcp-cryptography.git
cd mcp-cryptography
pip install -e ".[test]"

# run tests
pytest

# format
ruff format src/ tests/

# lint
ruff check src/ tests/

# type check
mcp_cryptography src/

Read the full README →View source on GitHub →

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Frequently Asked Questions about MCP Cryptography

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "mcp-cryptography": { "command": "npx", "args": ["-y", "mcp-cryptography"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

35Quality signal: Fair · 35/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools15/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to MCP Cryptography →Install in Claude Desktop Install in Cursor Install in VS Code