MCP Server

Checksum Validator MCP Server

com.apished/checksum-validator

What is the Checksum Validator MCP server?

Validates Luhn, IBAN, ISBN, EAN/UPC, SWIFT/BIC, and EU VAT checksums and formats.

Copy-paste configuration for popular MCP clients.

transport: http

Config generated by PluginBench — verify against the source before use.

~/.cursor/mcp.json

{
  "mcpServers": {
    "checksum-validator": {
      "url": "https://apished.com/mcp/v1/checksum"
    }
  }
}

Returns the actual current date/time in a given format and IANA timezone.

Date arithmetic: day differences, business days, age, leap years, day-of-week, add/subtract.

Computes MD5, SHA1, SHA256, SHA512, and CRC32 digests from text, base64, or hex input.

Validates Polish PESEL, NIP, and REGON checksums; PESEL also decodes birth date and sex.

Generates cryptographically random integers in a given range, using crypto/rand.

Regex matching, email/URL format validation, and JSON Schema validation.