Where this earns its place is the everyday work of dealing with someone else's format: a base64 blob, a hash you need to compare, a payload encrypted with a key you already hold. Where it does not is real key management — anything you encrypt in a chat has had its plaintext and probably its key pass through a model's context. Treat it as a decoder ring for data you are already working with, and keep secrets out of it. Note the name: this is cryptography, not cryptocurrency, despite what the package name suggests elsewhere.
A server for cryptographic operations: encrypting and decrypting text, hashing it, and the encoding conversions that go with both.
- AES encryption and decryption, with the standard block modes available
- Hashing and algorithm helpers
- Encoding conversion alongside the cipher work
Node, run through npx. MIT licensed.
One command — npx -y @smithery/cli install @1595901624/crypto-mcp --client claude