#checksum

MCP server for generating cryptographic hashes (MD5, SHA-1, SHA-256, SHA-512, RIPEMD-160). Pay-per-use via x402 protocol (USDC on Base). Use this when you need to hash strings, verify data integrity, or generate checksums.

Veridigit

qinisolabs

Verified IBAN, payment card, ISBN-13 and VIN validation for AI agents — runs the real checksum algorithms (mod-97, Luhn, mod-10, ISO 3779) instead of letting the model guess, and returns structured results with clear errors.