MCP.Market

FabTally Valid MCP server

online · 100% uptime
by zvmzaretsky·io.github.zvmzaretsky/validation-suite·v1.0.0

Validation suite: EU VAT (VIES), IBAN mod-97, email (MX+disposable), geo place lookup, VIN decode.

B77/100grade B
What users say
No reviews yet
Be the first
Safety scan
B77/100

full report

Adoption
New

0 stars

Reviews

Write one

Nobody has reviewed FabTally Valid yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

FabTally Valid tools (5, 1 write)

write = sends, deletes, buys or posts
  • decode_vinFree

    PAID $0.002 (x402, USDC on Base). Decode a Vehicle Identification Number: give {vin} and get a 17-char format + North-American check-digit validation and a full decode via NHTSA's public vPIC API — make, model, year, body class, engine, plant country and more. VIN-only (never plate→owner). Without payment returns the x402 challenge; pass x_payment to settle.

  • geo_lookupFree

    PAID $0.002 (x402, USDC on Base). Resolve a place against a bundled open dataset (no per-day API limits). Give {query:"Munich, Bavaria, Germany"} OR {country, state, city} and get normalized names, ISO 3166-1/-2 codes, the country→subdivision→city hierarchy, population and coordinates, and confirmation the place exists. Without payment returns the x402 challenge; pass x_payment to settle.

  • validate_emailwrite actionFree

    PAID $0.002 (x402, USDC on Base). Validate an email address: give {email} and get RFC-ish syntax validation, a LIVE MX-record (DNS) existence check, disposable/throwaway-domain detection (bundled blocklist), and a role-address flag (info@, admin@…). STATELESS and non-PII — the address is never stored and no SMTP mailbox is probed. Without payment returns the x402 challenge; pass x_payment to settle.

  • validate_ibanFree

    PAID $0.001 (x402, USDC on Base). Validate an IBAN: give {iban} and get ISO 13616 length + mod-97 checksum validation, the country, the human-formatted grouping, and the bank identifier (e.g. German Bankleitzahl, UK bank code + sort code) extracted from the BBAN where derivable. Pure-offline. Without payment returns the x402 challenge.

  • validate_vatFree

    PAID $0.003 (x402, USDC on Base). FLAGSHIP. Validate an EU/EEA VAT number: give {country_code, vat_number} and get a per-country format + checksum pre-check AND a LIVE lookup against the official VIES service — returning valid/registered plus the registered company name & address when VIES provides them (cached ~1h to shield the flaky VIES). Without payment returns the x402 challenge; pass x_payment to settle.

Public scan report

scanner v0.1.9 · 2026-09-24 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1020ms20/20
  • Tool poisoning5 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 54 days ago12/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 77/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How FabTally Valid compares

Against every graded Email MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
77/100
higher than 50% of 916 Email servers
Tools
5
the typical Email server has 7
Tools that change things
20%
typical: 25%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote Email server answers 100%
Response time
365 ms
faster than 43% of 609 Email servers

What its tools let an agent do: 4 read · 1 change

Install FabTally Valid in Claude Code, Cursor or VS Code

claude mcp add --transport http validation-suite https://valid.fabtally.com/mcp
Add to Cursor

What the publisher says

From the FabTally Valid repository's README, as published. We do not edit it. Read it on GitHub

FabTally Valid — MCP server

A developer validation suite — the per-call utilities incumbents charge for (Vatstack $0.01–0.09/call) or lock behind subscriptions, unified. Fronts the Valid HTTP API at https://valid.fabtally.com. Holds no private key.

Tools (all paid; a call with no payment returns the decoded x402 402 challenge)

Every tool also accepts an optional x_payment (base64 x402 payload) that is forwarded as the X-PAYMENT header to settle the call and return the real result. Humans can instead prepay by card and use an X-FabTally-Key credit key against the HTTP API.

Transports

  • stdio (portable): npx fabtally-valid-mcp (bin: fabtally-valid-mcp)
  • streamable-http (hosted): https://valid.fabtally.com/mcp

Config: FABTALLYVALIDBASE (default https://valid.fabtally.com).

Read-only, keyless, stateless, non-PII. Operated by Sunstone Soft (fabtally.com). Not legal, tax, or financial advice.

Nothing above is checked by us. What we check is on the safety report.

FabTally Valid: common questions

Is FabTally Valid MCP server safe?
Mostly: it is graded B (77/100). Read the FabTally Valid safety report
How do I install FabTally Valid?
It runs remotely at valid.fabtally.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does FabTally Valid need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is FabTally Valid maintained?
The last commit was 95 days ago (2026-08-01). The latest release is v1.0.0.
Is FabTally Valid up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of FabTally Valid?
Servers from other publishers that do the same job: ParseAPI MCP server, Mailoo - Email MCP Server and emailmd MCP server.
How does FabTally Valid compare with other Email MCP servers?
safety score 77/100 (higher than 50% of 916 Email servers); tools 5 (the typical Email server has 7); tools that change things 20% (typical: 25%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to FabTally Valid

Same job from other publishers: the closest match first, then the best rated.

  • ParseAPI
    Official ParseAPI MCP. Place, IP, email, phone, weather lookups.
    A
  • Mailoo - Email MCP Server
    Email MCP server for AI agents: IMAP/SMTP, Gmail, Outlook, calendar, ManageSieve, AI triage, OAuth2.
    A
  • emailmd
    Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
    A
  • OpenOSINT
    AI-powered OSINT agent & MCP server. 21 tools: email, breach, IP, WHOIS, DNS, Shodan, GitHub & more.
    C
  • Inbox Zero
    Search Gmail and Outlook, save drafts, manage email rules, and view email stats.
    A

More from zvmzaretsky →