Hash Identifier

Identify hash types offline: match a hex or crypt string against known algorithms, list lengths and hashcat modes - fully local.

Keyless — no signup, no API key, no environment variables.

Install

npx -y @mrfentmen/hashid-mcp

Or add it to your MCP client:

{
  "mcpServers": {
    "hashid-mcp": { "command": "npx", "args": ["-y", "@mrfentmen/hashid-mcp"] }
  }
}

Tools

| Tool | What it does | |---|---| | identify_hash | Guess which hash algorithm(s) produced a string, with hashcat mode numbers where known. | | hash_details | Parse the structure of a password hash: bcrypt cost and salt, argon2 parameters, SHA-crypt rounds and salts. | | hash_lengths | Reference table of common hash algorithms: hex length, byte length and hashcat mode. |

Data source

Pattern matching on well-known hash and password-hash formats, implemented locally