mcpbeat

FabTally Valid MCP Server

io.github.zvmzaretsky/validation-suite
answering

FabTally Valid is answering right now. Last checked 15 min ago. It exposes 5 tools. Last commit 1 Aug 2026.

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

Uptime history 44 hours of history
44 hours agonow
100.0%
Uptime 24h
91 of 91 checks
5
Tools
read from the server
135 ms
Response time
average over 24h
0
Stars
last commit 1 Aug 2026

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

run in your terminal
claude mcp add validation-suite --transport http https://valid.fabtally.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "validation-suite": {
      "url": "https://valid.fabtally.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.validation-suite]
url = "https://valid.fabtally.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "validation-suite": {
      "url": "https://valid.fabtally.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "validation-suite": {
      "url": "https://valid.fabtally.com/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

validate
validate_email
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_iban
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_vat
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.
decode
decode_vin
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
geo_lookup
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.

Endpoints

URLTransportStateLatencyChecked
https://valid.fabtally.com/mcp streamable-http answering 136 ms 15 min ago

FabTally Valid — questions

Answers built from our own checks of this server.

What can FabTally Valid do?
It exposes 5 tools, read directly from the server on our last check. Among them: decode_vin, geo_lookup, validate_email, validate_iban, validate_vat. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is FabTally Valid working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 135 ms. The bar chart above shows every period we have measured.
How do I connect FabTally Valid?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does FabTally Valid need an API key?
No. FabTally Valid completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is FabTally Valid?
It answers our handshake in 135 ms on average, which is faster than 77% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is FabTally Valid open source?
Yes — it is published under the MIT licence, written in JavaScript, 0 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.