MCP Cryptography vs MCP Hashlib
A side-by-side look at the MCP Cryptography and MCP Hashlib MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose MCP Cryptography for cryptography work as a local process; choose MCP Hashlib for cryptography as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose MCP Cryptography when
- You need dedicated capabilities in the Cryptography domain.
- You prefer a local stdio subprocess transport.
- You want tools like
generate_symmetric_key, generate_rsa_key, generate_x25519_key.
Choose MCP Hashlib when
- You need dedicated capabilities in the Cryptography domain.
- You prefer a local stdio subprocess transport.
- You want tools like
hash_md5, hash_sha1, hash_sha256.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Cryptography | Cryptography |
| Quality signal | 47/100 · Fair | 45/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | None listed | None listed |
| Verified owner |
Tools & capabilities
MCP Cryptography tools 14
generate_symmetric_keyGenerate a Fernet symmetric keygenerate_rsa_keyGenerate an RSA key pairgenerate_x25519_keyGenerate an X25519 key pairhash_sha256SHA-256 hashhash_sha512SHA-512 hashhash_sha1SHA-1 hashhmac_signGenerate HMAChmac_verifyVerify HMACpbkdf2_derivePBKDF2 key derivationscrypt_deriveScrypt key derivationgenerate_self_signed_certGenerate self-signed certificateparse_certificateParse X.509 certificate- +2 more on the listing page
MCP Hashlib tools 22
hash_md5MD5 hashhash_sha1SHA1 hashhash_sha256SHA256 hashhash_sha512SHA512 hashhash_sha224SHA224 hashhash_sha384SHA384 hashhash_sha3_224SHA3-224 hash
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
MCP Cryptography
{
"mcpServers": {
"mcp-cryptography": {
"command": "uvx",
"args": [
"mcp-cryptography"
]
}
}
}
MCP Hashlib
{
"mcpServers": {
"mcp-hashlib": {
"command": "uvx",
"args": [
"mcp-hashlib"
]
}
}
}
Frequently asked questions
MCP Cryptography is categorized under Cryptography and uses a local stdio subprocess. MCP Hashlib belongs to Cryptography and uses a local stdio subprocess. Pick MCP Cryptography for cryptography work and MCP Hashlib for cryptography.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
MCP Cryptography has no declared pricing — check the project's own site. MCP Hashlib has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add mcp-cryptography and mcp-hashlib as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, MCP Cryptography has a quality signal of 47/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. MCP Hashlib has 45/100 (Fair) with 1 views, 0 installs and 0 GitHub stars.
