Community · Official remote MCP server

The Checksum Validator MCP server,
connected in one click.

Validates Luhn, IBAN, ISBN, EAN/UPC, SWIFT/BIC, and EU VAT checksums and formats. Connect the official Checksum Validator MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.

Connect Checksum Validator free How it works

Free to start · No credit card · No hosting needed

Use this server

Add Checksum Validator to your AI in one minute

Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.

claude mcp add --transport http checksum-validator https://apished.com/mcp/v1/checksum

Run in your terminal, then restart Claude Code.

Checksum Validator · https://apished.com/mcp/v1/checksum

What you can do

What your AI can do with Checksum Validator

Real prompts you can type the moment it's connected — no setup, no docs to read.

“Use “ean_validate”: Validates an 8-digit (EAN-8), 12-digit (UPC-A), 13-digit (EAN-13), or 14-digit (GTIN-14) barcode checksum: alternating weights 1 3 applied r.”

“Use “iban_validate”: Validates an IBAN's length for its issuing country (per the SWIFT IBAN registry) and its mod-97 checksum. Does not decompose the BBAN into a.”

“Use “isbn_validate”: Validates a 10- or 13-character ISBN. ISBN-10 uses weights 10..1 over 10 characters (last may be X, worth 10), sum mod 11 must be 0. ISBN-13.”

“Use “luhn_validate”: Validates a numeric string against the Luhn (mod-10) checksum — payment card numbers, IMEI numbers, and similar identifiers.”

Security check

How secure is the Checksum Validator MCP server?

Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Checksum Validator holds up.

✓ Verified directory serverChecksum Validator · apished.com

Official endpoint

Operated by Checksum Validator (apished.com) at its documented MCP endpoint — not a third-party mirror or community re-host.

No sign-in needed

This server only exposes public data — no account and no credentials are involved when you connect.

Scanned before it goes live

gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.

Watched for drift

If Checksum Validator adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.

Run the free scanner on Checksum Validator's server →

How it works

Connected in three steps

Connect your gate

Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.

Pick Checksum Validator

Choose Checksum Validator in the gate directory. No sign-in needed.

Use it anywhere

Checksum Validator's tools are live in every AI client you've connected — with rules and logging built in.

Connect Checksum Validator free

Free to start · No credit card · No hosting needed

Straight from the server

The actual tools Checksum Validator exposes

Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.

ean_validate — Validates an 8-digit (EAN-8), 12-digit (UPC-A), 13-digit (EAN-13), or 14-digit (GTIN-14) barcode checksum: alternating weights 1 3 applied r

iban_validate — Validates an IBAN's length for its issuing country (per the SWIFT IBAN registry) and its mod-97 checksum. Does not decompose the BBAN into a

isbn_validate — Validates a 10- or 13-character ISBN. ISBN-10 uses weights 10..1 over 10 characters (last may be X, worth 10), sum mod 11 must be 0. ISBN-13

luhn_validate — Validates a numeric string against the Luhn (mod-10) checksum — payment card numbers, IMEI numbers, and similar identifiers.

swiftbic_validate — Structural format validation only for a SWIFT/BIC code: 8 or 11 characters (4 letters bank code + 2 letters country code + 2 alphanumeric lo

vateu_validate — Format validation only (no VIES lookup) for an EU VAT number: checks the 2-letter member-state prefix (EL for Greece, XI for Northern Irelan

Author

Who runs the Checksum Validator MCP server?

apished.com

Homepage More servers from apished.com →

Own this server? Claim the listing →

Server facts

The Checksum Validator MCP server at a glance

Endpointhttps://apished.com/mcp/v1/checksum

Operated byChecksum Validator (apished.com)

CategoryCommunity

Sign-inNone — public data only

Available in gateYes — one-click connect

Works withClaude, ChatGPT, Cursor & any MCP client

FAQ

Questions, answered

Is there an official Checksum Validator MCP server?

Yes — Checksum Validator operates its own remote MCP server at apished.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.

How do I connect Checksum Validator to Claude or ChatGPT?

Add gate's gateway URL to your AI client once, then pick Checksum Validator in the directory. No account or sign-in is needed. From then on, Checksum Validator's tools are available in every client you've connected to gate.

Do I need to host anything?

No. Checksum Validator runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.

Is the Checksum Validator MCP server safe to connect?

It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.