io.github.zvmzaretsky/validation-suite

fabtally-valid-mcp

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

GitHub npm

No known CVEs

MIT license

Actively maintained

Last commit 23d ago

Works with most clients

Transport:

0 tools

Grade F

MCPpedia last refreshed this data 1d ago

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io.github.zvmzaretsky/validation-suite is an MCP server that validation suite: EU VAT (VIES), IBAN mod-97, email (MX+disposable), geo place lookup, VIN decode. Its tool list has not been published yet, requires no API key, and scores 47/100 on MCPpedia's security, maintenance and efficiency rubric.

Communication

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-zvmzaretsky-validation-suite": {
      "args": [
        "-y",
        "fabtally-valid-mcp"
      ],
      "command": "npx"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-zvmzaretsky-validation-suite)](https://mcppedia.org/s/io-github-zvmzaretsky-validation-suite)

Read me

What io.github.zvmzaretsky/validation-suite does

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.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'fabtally-valid-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

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Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

47/100across 5 weighted dimensions

How we score →

0255075100

−53

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked fabtally-valid-mcp against OSV.dev.

Community

Reviews

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How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.zvmzaretsky/validation-suite safe to use?: io.github.zvmzaretsky/validation-suite has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install io.github.zvmzaretsky/validation-suite?: io.github.zvmzaretsky/validation-suite supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What AI clients work with io.github.zvmzaretsky/validation-suite?: io.github.zvmzaretsky/validation-suite is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is io.github.zvmzaretsky/validation-suite actively maintained?: io.github.zvmzaretsky/validation-suite is actively maintained — last commit was 23 days ago.

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Community

Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

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

Tool	Price	What it does
`validate_vat`	$0.003	Flagship. EU/EEA VAT: `{country_code, vat_number}` → per-country format + checksum pre-check AND a live VIES lookup, returning valid/registered plus the registered company name & address when VIES has them (cached ~1h to shield the flaky VIES).
`validate_iban`	$0.001	`{iban}` → ISO 13616 length + mod-97 checksum, country, human-formatted grouping, and bank identifier (German Bankleitzahl, UK bank code + sort code, …) extracted from the BBAN where derivable. Pure-offline.
`validate_email`	$0.002	`{email}` → RFC-ish syntax + live MX-record (DNS) existence + disposable/throwaway-domain detection (bundled blocklist) + role-address flag (`info@`, `admin@`). Stateless & non-PII: the address is never stored and no SMTP mailbox is probed.
`geo_lookup`	$0.002	`{query:"Munich, Bavaria, Germany"}` or `{country,state,city}` → normalized names, ISO 3166-1/-2 codes, country→subdivision→city hierarchy, population and coordinates, over a bundled open dataset (no per-day API limits).
`decode_vin`	$0.002	`{vin}` → 17-char format + North-American check-digit validation and a full NHTSA vPIC decode: make, model, year, body class, engine, plant country. VIN-only (never plate→owner).

Tool

Price

What it does

validate_vat

$0.003

Flagship. EU/EEA VAT: {country_code, vat_number} → per-country format + checksum pre-check AND a live VIES lookup, returning valid/registered plus the registered company name & address when VIES has them (cached ~1h to shield the flaky VIES).

validate_iban

$0.001

{iban} → ISO 13616 length + mod-97 checksum, country, human-formatted grouping, and bank identifier (German Bankleitzahl, UK bank code + sort code, …) extracted from the BBAN where derivable. Pure-offline.

validate_email

$0.002

{email} → RFC-ish syntax + live MX-record (DNS) existence + disposable/throwaway-domain detection (bundled blocklist) + role-address flag (info@, admin@). Stateless & non-PII: the address is never stored and no SMTP mailbox is probed.

geo_lookup

$0.002

{query:"Munich, Bavaria, Germany"} or {country,state,city} → normalized names, ISO 3166-1/-2 codes, country→subdivision→city hierarchy, population and coordinates, over a bundled open dataset (no per-day API limits).

decode_vin

$0.002

{vin} → 17-char format + North-American check-digit validation and a full NHTSA vPIC decode: make, model, year, body class, engine, plant country. VIN-only (never plate→owner).

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: FABTALLY_VALID_BASE (default https://valid.fabtally.com).

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

Frequently Asked Questions

Is io.github.zvmzaretsky/validation-suite safe to use?

io.github.zvmzaretsky/validation-suite has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.

How do I install io.github.zvmzaretsky/validation-suite?

io.github.zvmzaretsky/validation-suite supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What AI clients work with io.github.zvmzaretsky/validation-suite?

io.github.zvmzaretsky/validation-suite is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.

Is io.github.zvmzaretsky/validation-suite actively maintained?

io.github.zvmzaretsky/validation-suite is actively maintained — last commit was 23 days ago.

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

Tool	Price	What it does
`validate_vat`	$0.003	Flagship. EU/EEA VAT: `{country_code, vat_number}` → per-country format + checksum pre-check AND a live VIES lookup, returning valid/registered plus the registered company name & address when VIES has them (cached ~1h to shield the flaky VIES).
`validate_iban`	$0.001	`{iban}` → ISO 13616 length + mod-97 checksum, country, human-formatted grouping, and bank identifier (German Bankleitzahl, UK bank code + sort code, …) extracted from the BBAN where derivable. Pure-offline.
`validate_email`	$0.002	`{email}` → RFC-ish syntax + live MX-record (DNS) existence + disposable/throwaway-domain detection (bundled blocklist) + role-address flag (`info@`, `admin@`). Stateless & non-PII: the address is never stored and no SMTP mailbox is probed.
`geo_lookup`	$0.002	`{query:"Munich, Bavaria, Germany"}` or `{country,state,city}` → normalized names, ISO 3166-1/-2 codes, country→subdivision→city hierarchy, population and coordinates, over a bundled open dataset (no per-day API limits).
`decode_vin`	$0.002	`{vin}` → 17-char format + North-American check-digit validation and a full NHTSA vPIC decode: make, model, year, body class, engine, plant country. VIN-only (never plate→owner).

Tool

Price

What it does

validate_vat

$0.003

validate_iban

$0.001

validate_email

$0.002

geo_lookup

$0.002

decode_vin

$0.002

{vin} → 17-char format + North-American check-digit validation and a full NHTSA vPIC decode: make, model, year, body class, engine, plant country. VIN-only (never plate→owner).

Transports

stdio (portable): npx fabtally-valid-mcp (bin: fabtally-valid-mcp)

streamable-http (hosted): https://valid.fabtally.com/mcp

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

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

io.github.zvmzaretsky/validation-suite

Install in your client