GCC e-Invoice Preflight Oracle

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tech.noahsarch/einvoice-preflightv0.1.1 Domain verified

Validate UAE PINT AE and Saudi ZATCA e-invoices: UBL, official Schematron, QR, fix hints.

Legal & Government Finance & Payments

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https://einvoice.noahsarch.tech/mcp

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Tool list from our last check. Connect live to refresh it.

check_trn Read-only

Format check of a UAE Tax Registration Number (15 digits) and derivation of the TIN / Peppol participant identifier (scheme 0235 = first 10 digits). Free. Example: trn '100 1234 5670 0003'. Response: result with verdict (ACCEPTED | ACCEPTED_WITH_WARNINGS | REJECTED), findings[] (id, severity, message, fields, location, fix_hint, source = xsd | schematron | preflight), counts, ruleset version and timings, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. Documents are validated in memory and never stored or logged.

trnstring, required

UAE Tax Registration Number as printed (spaces/dashes allowed).

Tools (7)

check_trn

read-only

Argument	Type	Description
trn*	string	UAE Tax Registration Number as printed (spaces/dashes allowed).

Input schema (JSON)

{
  "type": "object",
  "title": "check_trnArguments",
  "required": [
    "trn"
  ],
  "properties": {
    "trn": {
      "type": "string",
      "title": "Trn",
      "description": "UAE Tax Registration Number as printed (spaces/dashes allowed)."
    }
  }
}

extract_summary

Seller/buyer (names, TRN, endpoint, legal registration, emirate), dates, currency, totals, VAT breakdown, line count, payment means, attachments and the detected rule set — without validating. Free. Response: result with verdict (ACCEPTED | ACCEPTED_WITH_WARNINGS | REJECTED), findings[] (id, severity, message, fields, location, fix_hint, source = xsd | schematron | preflight), counts, ruleset version and timings, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. Documents are validated in memory and never stored or logged.

read-only

Argument	Type	Description
xml*	string

Input schema (JSON)

{
  "type": "object",
  "title": "extract_summaryArguments",
  "required": [
    "xml"
  ],
  "properties": {
    "xml": {
      "type": "string",
      "title": "Xml",
      "description": ""
    }
  }
}

list_rules

Rule ids, severities and texts from the installed PINT AE Schematron (shared PINT rules and the -ae jurisdiction rules), filterable by severity or text, with fix hints where we have them. Free. Example: contains 'TaxPointDate'. Response: result with verdict (ACCEPTED | ACCEPTED_WITH_WARNINGS | REJECTED), findings[] (id, severity, message, fields, location, fix_hint, source = xsd | schematron | preflight), counts, ruleset version and timings, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. Documents are validated in memory and never stored or logged.

read-only

Argument	Type	Description
contains	any	Filter by text, e.g. 'TaxPointDate', 'ibr-co', 'BTAE-16'.
severity	any
jurisdiction	string

Input schema (JSON)

{
  "type": "object",
  "title": "list_rulesArguments",
  "properties": {
    "contains": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Contains",
      "default": null,
      "description": "Filter by text, e.g. 'TaxPointDate', 'ibr-co', 'BTAE-16'."
    },
    "severity": {
      "anyOf": [
        {
          "enum": [
            "fatal",
            "warning"
          ],
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Severity",
      "default": null,
      "description": ""
    },
    "jurisdiction": {
      "enum": [
        "ae",
        "ae-sb"
      ],
      "type": "string",
      "title": "Jurisdiction",
      "default": "ae",
      "description": ""
    }
  }
}

readiness_report

Batch preflight for a go-live check or an ERP regression suite: per-document verdicts, readiness percentage, the most frequent rejection rules across the batch, optional printable HTML. Charged per document. Response: result with verdict (ACCEPTED | ACCEPTED_WITH_WARNINGS | REJECTED), findings[] (id, severity, message, fields, location, fix_hint, source = xsd | schematron | preflight), counts, ruleset version and timings, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. Documents are validated in memory and never stored or logged.

read-only

Argument	Type	Description
format	string	'html' adds a self-contained printable report in result.html.
documents*	array	Up to 100 documents.
preflight	boolean
jurisdiction	string

Input schema (JSON)

{
  "type": "object",
  "$defs": {
    "DocumentIn": {
      "type": "object",
      "title": "DocumentIn",
      "required": [
        "xml"
      ],
      "properties": {
        "xml": {
          "type": "string",
          "title": "Xml",
          "maxLength": 3000000,
          "minLength": 20
        },
        "name": {
          "anyOf": [
            {
              "type": "string",
              "maxLength": 200
            },
            {
              "type": "null"
            }
          ],
          "title": "Name",
          "default": null,
          "description": "Label for the row (file name, invoice number)."
        }
      },
      "additionalProperties": false
    }
  },
  "title": "readiness_reportArguments",
  "required": [
    "documents"
  ],
  "properties": {
    "format": {
      "enum": [
        "json",
        "html"
      ],
      "type": "string",
      "title": "Format",
      "default": "json",
      "description": "'html' adds a self-contained printable report in result.html."
    },
    "documents": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/DocumentIn"
      },
      "title": "Documents",
      "description": "Up to 100 documents."
    },
    "preflight": {
      "type": "boolean",
      "title": "Preflight",
      "default": true,
      "description": ""
    },
    "jurisdiction": {
      "enum": [
        "auto",
        "ae",
        "ae-sb",
        "sa"
      ],
      "type": "string",
      "title": "Jurisdiction",
      "default": "auto",
      "description": ""
    }
  }
}

validate_invoice

Full preflight of one UBL Invoice or CreditNote: XML well-formedness, UBL 2.1 XSD, the official PINT AE Schematron (≈300 rules incl. the UAE jurisdiction overlay) or the ZATCA pre-check, plus advisory cross-checks. Returns a verdict and every finding with rule id, severity, fields, location and fix hint. Example: xml '<Invoice …>', jurisdiction 'auto'. Response: result with verdict (ACCEPTED | ACCEPTED_WITH_WARNINGS | REJECTED), findings[] (id, severity, message, fields, location, fix_hint, source = xsd | schematron | preflight), counts, ruleset version and timings, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. Documents are validated in memory and never stored or logged.

read-only

Argument	Type	Description
xml*	string	The UBL 2.1 Invoice or CreditNote XML as a string.
preflight	boolean	Also run the advisory Noah's Arch checks (nae-/nksa-: TRN/TIN consistency, emirate codes, VAT rates, totals cross-check, dates).
include_info	boolean	Include info-level notes (e.g. test-data TRNs).
jurisdiction	string	'ae' PINT AE Billing, 'ae-sb' PINT AE Self-Billing, 'sa' ZATCA (KSA), or 'auto' (from CustomizationID / ProfileID).

Input schema (JSON)

{
  "type": "object",
  "title": "validate_invoiceArguments",
  "required": [
    "xml"
  ],
  "properties": {
    "xml": {
      "type": "string",
      "title": "Xml",
      "description": "The UBL 2.1 Invoice or CreditNote XML as a string."
    },
    "preflight": {
      "type": "boolean",
      "title": "Preflight",
      "default": true,
      "description": "Also run the advisory Noah's Arch checks (nae-*/nksa-*: TRN/TIN consistency, emirate codes, VAT rates, totals cross-check, dates)."
    },
    "include_info": {
      "type": "boolean",
      "title": "Include Info",
      "default": false,
      "description": "Include info-level notes (e.g. test-data TRNs)."
    },
    "jurisdiction": {
      "enum": [
        "auto",
        "ae",
        "ae-sb",
        "sa"
      ],
      "type": "string",
      "title": "Jurisdiction",
      "default": "auto",
      "description": "'ae' PINT AE Billing, 'ae-sb' PINT AE Self-Billing, 'sa' ZATCA (KSA), or 'auto' (from CustomizationID / ProfileID)."
    }
  }
}

zatca_qr_decode

Decode the base64 TLV of a Saudi e-invoice QR into seller name, VAT number, timestamp, totals, hash, signature and key tags, with phase detection and format issues. Free. Response: result with verdict (ACCEPTED | ACCEPTED_WITH_WARNINGS | REJECTED), findings[] (id, severity, message, fields, location, fix_hint, source = xsd | schematron | preflight), counts, ruleset version and timings, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. Documents are validated in memory and never stored or logged.

read-only

Argument	Type	Description
qr*	string	Base64 TLV content of a ZATCA QR code.

Input schema (JSON)

{
  "type": "object",
  "title": "zatca_qr_decodeArguments",
  "required": [
    "qr"
  ],
  "properties": {
    "qr": {
      "type": "string",
      "title": "Qr",
      "description": "Base64 TLV content of a ZATCA QR code."
    }
  }
}

zatca_qr_encode

Encode the five phase-1 fields (plus optional phase-2 hash/signature/key tags) into the base64 TLV string that goes into the QR image and the UBL QR reference. Free. Response: result with verdict (ACCEPTED | ACCEPTED_WITH_WARNINGS | REJECTED), findings[] (id, severity, message, fields, location, fix_hint, source = xsd | schematron | preflight), counts, ruleset version and timings, plus data_confidence, estimated_items[], sources[], data_version, warnings[] and a disclaimer. Documents are validated in memory and never stored or logged.

read-only

Argument	Type	Description
timestamp*	string	ISO 8601, e.g. 2026-10-31T14:05:00Z
vat_total*	string	e.g. '150.00'
public_key	any	Base64 (phase 2).
vat_number*	string	KSA VAT number: 15 digits, starts and ends with 3.
seller_name*	string
invoice_hash	any	Base64 SHA-256 of the invoice (phase 2).
total_with_vat*	string	e.g. '1150.00'

GCC e-Invoice Preflight Oracle

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check_trn Read-only

GCC e-Invoice Preflight Oracle

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check_trn Read-only

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Tools (7)

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