Commerce Validators MCP server

• check_email_domainwrite actionFree

  Check whether a domain can actually receive email (has MX records) via a real DNS-over-HTTPS lookup — validate a customer/supplier email's domain before sending or invoicing. An LLM can't know current DNS; this does the live lookup.

• payout_reconciliationFree

  Explain why a payout is less than sales: walk gross -> deductions -> expected, and (if actual_deposit given) flag the unexplained gap (shortfall/surplus).

• reorder_pointFree

  Reorder point = lead-time demand + safety stock. If on_hand is given, returns whether to reorder now and the days of cover remaining.

• stripe_connect_splitFree

  Compute the Stripe Connect three-way split for one charge. Returns what the buyer pays, what Stripe takes, what the platform nets (its application fee), and what the connected seller nets — plus the platform's effective take rate. fee_bearer: 'seller' | 'platform' | 'buyer' (who absorbs the Stripe processing fee). Rates are editable; defaults are US card standard 2.9%+$0.30.

• validate_aba_routingFree

  Validate a US ABA bank routing number (9 digits) by its checksum. Catch typos before initiating an ACH/wire payout. Pure-algorithm; nothing leaves the machine.

• validate_eoriFree

  Validate an EORI number (Economic Operators Registration and Identification) against the official EU customs database (live lookup). An EORI is required for EU imports/exports — check a trading partner's or your own EORI before customs filings / freight bookings. Input e.g. 'DE1234567890123' (country code + number).

• validate_eu_vatFree

  Validate an EU VAT number against the official EU VIES service (live government lookup). Returns whether it is registered/valid and, if available, the registered trader name + address. An LLM cannot know this without the real lookup — use this before invoicing/reverse-charging an EU B2B customer. Input e.g. 'DE811569869' or 'IE6388047V' (country code + number).

• validate_gtinFree

  Validate a GTIN / UPC / EAN barcode (GTIN-8/12/13/14) by its check digit. Catches mistyped product barcodes in inventory/catalog workflows. Pure-algorithm.

• validate_ibanFree

  Validate an IBAN (International Bank Account Number) by structure + the ISO 7064 mod-97 checksum. Catches typos/invalid accounts before you initiate a transfer. Pure-algorithm; no data leaves the machine.

• vat_rate_by_countryFree

  EU VAT rates (standard / reduced / super-reduced / parking) for a country, from the maintained ibericode/vat-rates dataset (fetched live, cached 24h) — including which rate set was in force on an optional 'date' (YYYY-MM-DD) and the names of regional exceptions (e.g. Canary Islands). Input e.g. 'DE', 'FR', 'HU'.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 1070ms20/20
• Tool poisoning10 tool descriptions checked15/15
• Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
• Maintenancerepository not readable: repo not found3/15
• Maintainer identityno repository or website to verify2/10

Commerce Validators: common questions

Is Commerce Validators MCP server safe?

With care: it is graded C, so read the findings first (57/100). Read the Commerce Validators safety report

How do I install Commerce Validators?

It runs remotely at mcp.scienceswarm.org. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Commerce Validators need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Commerce Validators maintained?

The latest release is v1.1.1.

Is Commerce Validators up?

57% of our last 28 checks got an answer. We check remote servers about four times a day.

What can I use instead of Commerce Validators?

Servers from other publishers that do the same job: Email Inbox API + Sending by Sendmux MCP server, MCP Emails MCP server and emailmd MCP server. Compare all Commerce Validators alternatives.