MarketNow Registry / Developer Tools / checksum-validator

checksum-validator

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

Developer Tools v1.0.0 by com.apished

Trust score

85/100

Install risk

Review advised

Source

official-registry

Indexed

2026-09-10

Install

$ https://apished.com/mcp/v1/checksum

Heuristic signals advise review before installing: young package, low adoption, stale repository, or name similarity to a popular package.

How MarketNow scored this

Sentinel Index Heuristics — a security-first estimate from public signals:

Package age and release activity (stale repositories lose points)
Verified adoption: registry downloads or GitHub stars, not follower counts
Typosquat distance against the 150 most-installed MCP packages
Injection markers scanned in the package description

Heuristic, not a guarantee. For verified agent credentials and revocation, see the MarketNow Trust API.

What is checksum-validator?

Validates Luhn, IBAN, ISBN, EAN/UPC, SWIFT/BIC, and EU VAT checksums and formats. Indexed by MarketNow with trust 85/100 (Review advised).

How do I install it?

Run $ https://apished.com/mcp/v1/checksum Heuristic signals advise review before installing: young package, low adoption, stale repository, or name similarity to a popular package.

What does the trust score mean?

Security-first heuristic over public signals (age, adoption, typosquat distance, injection markers). It is not a popularity ranking and not a guarantee of safety. checksum-validator scores 85/100.