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GCC e-Invoice Preflight Oracle

R0· no sign-in

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

v0.1.1 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality94new
Trust82of 100
Uptime, 30 days96%
Latency p50688 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "einvoice-preflight": {
      "type": "http",
      "url": "https://einvoice.noahsarch.tech/mcp",
      "headers": {
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}
claude mcp add --transport http einvoice-preflight https://einvoice.noahsarch.tech/mcp --header "X-API-Key: ${X_API_KEY}"
[mcp_servers.einvoice-preflight]
url = "https://einvoice.noahsarch.tech/mcp"
env_http_headers = { "X-API-Key" = "X_API_KEY" }
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "einvoice-preflight": {
      "type": "remote",
      "url": "https://einvoice.noahsarch.tech/mcp",
      "enabled": true,
      "headers": {
        "X-API-Key": "{env:X_API_KEY}"
      }
    }
  }
}
{
  "mcpServers": {
    "einvoice-preflight": {
      "type": "http",
      "url": "https://einvoice.noahsarch.tech/mcp",
      "headers": {
        "X-API-Key": "${X_API_KEY}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=einvoice-preflight&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vZWludm9pY2Uubm9haHNhcmNoLnRlY2gvbWNwIiwiaGVhZGVycyI6eyJYLUFQSS1LZXkiOiIke1hfQVBJX0tFWX0ifX0%3D"
}
{
  "servers": {
    "einvoice-preflight": {
      "type": "http",
      "url": "https://einvoice.noahsarch.tech/mcp",
      "headers": {
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}
{
  "mcpServers": {
    "einvoice-preflight": {
      "httpUrl": "https://einvoice.noahsarch.tech/mcp",
      "headers": {
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}
extensions:
  "einvoice-preflight":
    enabled: true
    name: "einvoice-preflight"
    type: streamable_http
    uri: "https://einvoice.noahsarch.tech/mcp"
    headers:
      "X-API-Key": "${X_API_KEY}"
    timeout: 300

Placeholders to fill from your own secret store: ${X_API_KEY}. The registry never accepts secret values.

Quality 94 / 100new

protocol88 · weight 25
  • pass
    protocol.modernsupports 2026-07-28 (server/discover)
  • pass
    protocol.statelessanswers without a session
  • pass
    protocol.transportstreamable HTTP
  • warn
    protocol.list_ttltools/list declares ttlMs 0, so clients re-fetch it on every use
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations7 of 7 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 2,194 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool history recorded for 6 of the 7 days needed
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

7 tools, about 2,194 tokens to load them all · tool set 6705b47ae507 · checked 2026-11-07 17:28 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 82 / 100

no-repository
provenance55
liveness98
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-96% +updated-7d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://einvoice.noahsarch.tech/mcp streamable-httpnoneyes96%688 ms2026-07-282026-11-07

Tools (7)

check_trnread-onlyFormat 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.
extract_summaryread-onlySeller/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.
list_rulesread-onlyRule 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.
readiness_reportread-onlyBatch 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.
validate_invoiceread-onlyFull 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.
zatca_qr_decoderead-onlyDecode 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.
zatca_qr_encoderead-onlyEncode 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.

Schemas: list_tools.

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Official server.json
{
  "name": "tech.noahsarch/einvoice-preflight",
  "icons": [
    {
      "src": "https://agents.noahsarch.tech/icons/noahsarch-256.png",
      "sizes": [
        "256x256"
      ],
      "mimeType": "image/png"
    },
    {
      "src": "https://agents.noahsarch.tech/icons/noahsarch-64.png",
      "sizes": [
        "64x64"
      ],
      "mimeType": "image/png"
    },
    {
      "src": "https://agents.noahsarch.tech/icons/noahsarch.svg",
      "sizes": [
        "any"
      ],
      "mimeType": "image/svg+xml"
    }
  ],
  "title": "GCC e-Invoice Preflight Oracle",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://einvoice.noahsarch.tech/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "X-API-Key",
          "isSecret": true,
          "description": "API key from [email protected] (catalogue and free tools work without it)"
        }
      ]
    }
  ],
  "version": "0.1.1",
  "websiteUrl": "https://agents.noahsarch.tech/",
  "description": "Validate UAE PINT AE and Saudi ZATCA e-invoices: UBL, official Schematron, QR, fix hints."
}