MCP.Market

Cryptography MCP server

by daedalus·io.github.daedalus/mcp-cryptography·v0.1.1
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MCP server exposing cryptography library functionality

B82/100grade B
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Safety scan
B82/100

full report

Adoption
New

0 stars17 downloads/wk

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Cryptography tools (22, 1 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • aes_decrypt

    Decrypt AES ciphertext.

  • aes_encrypt

    Encrypt data using AES.

  • fernet_decrypt

    Decrypt Fernet ciphertext.

  • fernet_encrypt

    Encrypt data using Fernet symmetric encryption.

  • generate_random_base64

    Generate random bytes encoded as base64.

  • generate_random_bytes

    Generate random bytes.

  • generate_rsa_key

    Generate an RSA key pair.

  • generate_self_signed_cert

    Generate a self-signed X.509 certificate.

  • generate_symmetric_key

    Generate a Fernet symmetric key.

  • generate_x25519_key

    Generate an X25519 key pair for key exchange.

  • hash_sha1

    Compute SHA-1 hash.

  • hash_sha256

    Compute SHA-256 hash.

  • hash_sha512

    Compute SHA-512 hash.

  • hmac_sign

    Generate HMAC.

  • hmac_verify

    Verify HMAC.

  • parse_certificate

    Parse X.509 certificate.

  • pbkdf2_derive

    Derive key using PBKDF2.

  • rsa_decrypt

    Decrypt RSA ciphertext using private key.

  • rsa_encrypt

    Encrypt data using RSA with OAEP asymmetric_padding.

  • rsa_signwrite action

    Create RSA digital signature.

  • rsa_verify

    Verify RSA digital signature.

  • scrypt_derive

    Derive key using Scrypt.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan4 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 96 days ago8/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 82/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Cryptography compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
82/100
higher than 63% of 48,273 servers
Tools
22
the typical server has 7
Tools that change things
5%
typical: 0%. Fewer write tools means less an agent can break
Downloads a week
17
more than 5% of 11,915 servers with a package

What its tools let an agent do: 15 read · 6 create · 1 change

Install Cryptography in Claude Code, Cursor or VS Code

claude mcp add mcp-cryptography -- uvx mcp-cryptography
Add to Cursor

What the publisher says

From the Cryptography repository's README, as published. We do not edit it. Read it on GitHub

mcp-cryptography

MCP server exposing cryptography library functionality.

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

Install

pip install mcp-cryptography

Usage

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

  • generatesymmetrickey - Generate a Fernet symmetric key
  • generatersakey - Generate an RSA key pair
  • generatex25519key - Generate an X25519 key pair

Symmetric Encryption

  • fernetencrypt / fernetdecrypt - Fernet encryption
  • aesencrypt / aesdecrypt - AES encryption (CBC/GCM modes)

Asymmetric Encryption

  • rsaencrypt / rsadecrypt - RSA OAEP encryption
  • rsasign / rsaverify - 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

  • generateselfsigned_cert - Generate self-signed certificate
  • parse_certificate - Parse X.509 certificate

Utilities

  • generaterandombytes - Generate random bytes
  • generaterandombase64 - Generate random base64 bytes

Development

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/

Nothing above is checked by us. What we check is on the safety report.

Cryptography: common questions

Is Cryptography MCP server safe?
Mostly: it is graded B (82/100). Read the Cryptography safety report
How do I install Cryptography?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Cryptography need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Cryptography maintained?
The last commit was 132 days ago (2026-06-23). The latest release is v0.1.1.
How does Cryptography compare with other MCP servers?
safety score 82/100 (higher than 63% of 48,273 servers); tools 22 (the typical server has 7); tools that change things 5% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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