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Jithox

by jithox.com · remote · no sign-in to list tools · v1.1.0 · published by com.jithox

8 invoice/payment tools; 5 free, no login. IBAN, bank changes, Peppol. Paid VAT and invoice review.

Final · 2Changes · 3

8 tools: 2 do something that can't be undone, 3 change things and 3 only read.

Scanned Oct 21, 2026

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http jithox https://jithox.com/api/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • The server marks "check_payment_change" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The name "check_payment_change" says "payment": a word that usually means money moves, which cannot be taken back.

    What this check looks for
  • The server marks "preflight_payment" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The name "preflight_payment" says "payment": a word that usually means money moves, which cannot be taken back.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

8 tools

Can't be undone 2Claude Code: ask
  • check_payment_changeCheck a supplier's bank-detail change before the vendor record is touched: returns no_change, verify_first, stop or invalid_new_account with call-back steps.1 finding

    Why it is in this group

    • The name "check_payment_change" says "payment": a word that usually means money moves, which cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "check_payment_change" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The name "check_payment_change" says "payment": a word that usually means money moves, which cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Check a supplier's bank-detail change before the vendor record is touched: returns no_change, verify_first, stop or invalid_new_account with call-back steps. It never says an account is safe. Free, no token.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Check a supplier bank change
    • openWorldHint: false
  • preflight_paymentFor a structured invoice, call review_invoice first.Reads text others write1 finding

    Why it is in this group

    • The name "preflight_payment" says "payment": a word that usually means money moves, which cannot be taken back.
    • The input carries an amount (input.approved.amount) and a currency, so it moves money.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.

    Findings

    • Warn

      The server marks "preflight_payment" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The name "preflight_payment" says "payment": a word that usually means money moves, which cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    For a structured invoice, call review_invoice first. Before paying, compare the supplied human approval with the payment and run rail checks (invoice: IBAN, account change). Without approved: review_required or stop, never no_blockers_found. Returns checks and signed evidence. Never pays; unrun checks never pass. Free, no token.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Check before a payment
    • openWorldHint: true
Changes things 3Claude Code: ask
  • check_peppol_readyCheck your own invoice against 21 published Peppol BIS Billing 3.0 rules, and whether the customer's Peppol address is registered; each finding names the rule and the fix.Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Check your own invoice against 21 published Peppol BIS Billing 3.0 rules, and whether the customer's Peppol address is registered; each finding names the rule and the fix. A listed subset, not the official validator. Free, no token.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Check Peppol invoice readiness
    • openWorldHint: true
  • review_invoiceCheck a structured invoice: Peppol fields, totals, EU VIES VAT, fixes and UBL XML.Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Check a structured invoice: Peppol fields, totals, EU VIES VAT, fixes and UBL XML. Never sends; unanswered VAT is unknown. No receiver lookup here. If the receiver has a Peppol address, next call check_peppol_ready with this invoice. 8 credits (EUR 0.08) per review the VAT register answered; needs a bearer token.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Review an invoice
    • openWorldHint: true
  • verify_ibanCheck an IBAN's structure and check digits for 70+ countries, offline.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Check an IBAN's structure and check digits for 70+ countries, offline. It never claims the account exists or who owns it. Free, no token.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Check an IBAN
    • openWorldHint: false
Only reads 3Claude Code: allow
  • check_vat_listCheck up to 20 rows of EU VAT numbers in EU VIES, row for row; a malformed or non-EU row is judged locally (`not_covered`, never `invalid`).Reads text others writeNo findings

    Why it is in this group

    • The name "check_vat_list" says "list": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Check up to 20 rows of EU VAT numbers in EU VIES, row for row; a malformed or non-EU row is judged locally (`not_covered`, never `invalid`). UNKNOWN COSTS NOTHING, and the balance must cover the whole call (20 credits for 20 rows) before it runs. Optional requesterVatId adds a consultation number registered to you; a requester VIES refuses costs nothing. 1 credit (EUR 0.01) per answered row; needs a bearer token.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Check EU VAT numbers
    • openWorldHint: true
  • lookup_peppol_participantAsk live Peppol registers about e-invoice reception, document types and failure contacts; never guarantees delivery.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "lookup_peppol_participant" says "lookup": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "document": it reads documents.
    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Ask live Peppol registers about e-invoice reception, document types and failure contacts; never guarantees delivery. Not a VAT or company-register check; use kbo_company_search (one company) or check_vat_list (a list). Free, no token.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • title: Look up a Peppol receiver
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged outbound.

Reads private data1
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write6
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Install

Pinned to version 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http jithox https://jithox.com/api/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__jithox__kbo_company_search",
      "mcp__jithox__lookup_peppol_participant",
      "mcp__jithox__check_vat_list"
    ],
    "ask": [
      "mcp__jithox__review_invoice",
      "mcp__jithox__verify_iban",
      "mcp__jithox__check_peppol_ready",
      "mcp__jithox__check_payment_change",
      "mcp__jithox__preflight_payment"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as jithox. Review it before you use it.

Capability tags behind 6 rules
  • mcp__jithox__kbo_company_search untrusted-input
  • mcp__jithox__review_invoice untrusted-input
  • mcp__jithox__check_peppol_ready untrusted-input
  • mcp__jithox__lookup_peppol_participant private-data, untrusted-input
  • mcp__jithox__preflight_payment untrusted-input
  • mcp__jithox__check_vat_list untrusted-input