Is the Zvmzaretsky Validation Suite MCP server down?

• Added readOnlyHint: true (inferred from the name). (verify)

{
  "name": "geo_lookup",
  "description": "PAID $0.002 (x402, USDC on Base). Resolve a place against a bundled open dataset (no per-day API limits). Give {query:\"Munich, Bavaria, Germany\"} OR {country, state, city} and get normalized names, ISO 3166-1/-2 codes, the country→subdivision→city hierarchy, population and coordinates, and confirmation the place exists. Without payment returns the x402 challenge; pass x_payment to settle.",
  "inputSchema": {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "properties": {
      "city": {
        "type": "string",
        "description": "City name."
      },
      "query": {
        "type": "string",
        "description": "Free-text place, e.g. \"Munich, Bavaria, Germany\" or \"France\"."
      },
      "state": {
        "type": "string",
        "description": "State/province/subdivision name or code (within the country)."
      },
      "country": {
        "type": "string",
        "description": "Country name or ISO 3166-1 alpha-2/alpha-3 code."
      },
      "x_payment": {
        "type": "string",
        "description": "x402 payment payload (base64) for this PAID validation. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
      }
    },
    "additionalProperties": false
  },
  "annotations": {
    "readOnlyHint": true
  },
  "title": "Resolve a country / state / city to ISO codes (paid $0.002)"
}

• Added readOnlyHint: true (inferred from the name). (verify)

{
  "name": "validate_email",
  "description": "PAID $0.002 (x402, USDC on Base). Validate an email address: give {email} and get RFC-ish syntax validation, a LIVE MX-record (DNS) existence check, disposable/throwaway-domain detection (bundled blocklist), and a role-address flag (info@, admin@…). STATELESS and non-PII — the address is never stored and no SMTP mailbox is probed. Without payment returns the x402 challenge; pass x_payment to settle.",
  "inputSchema": {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "email"
    ],
    "properties": {
      "email": {
        "type": "string",
        "description": "The email address to validate."
      },
      "x_payment": {
        "type": "string",
        "description": "x402 payment payload (base64) for this PAID validation. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
      }
    },
    "additionalProperties": false
  },
  "annotations": {
    "readOnlyHint": true
  },
  "title": "Validate an email: syntax + MX + disposable + role (paid $0.002)"
}

• Added readOnlyHint: true (inferred from the name). (verify)

{
  "name": "validate_iban",
  "description": "PAID $0.001 (x402, USDC on Base). Validate an IBAN: give {iban} and get ISO 13616 length + mod-97 checksum validation, the country, the human-formatted grouping, and the bank identifier (e.g. German Bankleitzahl, UK bank code + sort code) extracted from the BBAN where derivable. Pure-offline. Without payment returns the x402 challenge.",
  "inputSchema": {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "iban"
    ],
    "properties": {
      "iban": {
        "type": "string",
        "description": "The IBAN (spaces/dashes tolerated), e.g. DE89 3704 0044 0532 0130 00."
      },
      "x_payment": {
        "type": "string",
        "description": "x402 payment payload (base64) for this PAID validation. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
      }
    },
    "additionalProperties": false
  },
  "annotations": {
    "readOnlyHint": true
  },
  "title": "Validate an IBAN (mod-97) + extract bank code (paid $0.001)"
}