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io.github.theluckystrike/invoice-generator

io.github.theluckystrike/invoice-generatortheluckystrikestreamable-httpv0.21.1Scanned

Create PDF invoices from your AI chat: clients, numbering, VAT, overdue reports. All data is local.

13 tools: 1 can delete or cancel things, 7 change things and 5 only read.

Tools: 1 delete, 0 irreversible, 7 write, 5 read.
  • Reads private data · 3
  • Reads text others write · 2
  • Can send data out · 1
  • 2 findings

Tools listed without sign-in. Remote posture

Anlyon alternative

8 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

13 tools

Deletes or cancels 1Claude Code: deny
  • client_deleteDelete one stored client that nothing refers to.No findings

    Why it is in this group

    • The name "client_delete" says "delete": a word for removing or ending something.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    Delete one stored client that nothing refers to. A client named on any invoice, quote, credit note, purchase order, deposit, statement or schedule is refused with those documents listed.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: false
    • openWorldHint: false
Changes things 7Claude Code: ask
  • business_setThe ONE business profile for the whole suite: name, address, VAT id, bank details and defaults (currency, tax rate, terms, prefix, timezone).Can send data out1 finding

    Why it is in this group

    • The name "business_set" says "set": a word for a change.

    What it can reach

    • outboundThe input takes a destination (input.phone): what the tool writes goes there.

    Findings

    • Warn

      The description contains "other server", wording about other tools or servers.

      Matched text

      description: "...one). Saved to the shared profile every other server reads. Call it once, first."

      What this check looks for
    Description, as the server wrote it
    The ONE business profile for the whole suite: name, address, VAT id, bank details and defaults (currency, tax rate, terms, prefix, timezone). Saved to the shared profile every other server reads. Call it once, first.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • client_addStore a client so invoice_create can refer to them by name.No findings

    Why it is in this group

    • The name "client_add" says "add": a word for a change.
    Description, as the server wrote it
    Store a client so invoice_create can refer to them by name. Re-adding the same name updates the stored address, email and VAT id; a record identical to a stored one is refused, naming the id that already holds it.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • invoice_createCreate an invoice from line items and return the record with its next, never-reused number.No findings

    Why it is in this group

    • The name "invoice_create" says "create": a word for a change.
    Description, as the server wrote it
    Create an invoice from line items and return the record with its next, never-reused number. unit_price is in MAJOR units; lines are rounded then summed. One currency per invoice. Free: 3 a month.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • invoice_from_hoursShortcut for the common case: bill one client for N hours at an hourly rate.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.
    Description, as the server wrote it
    Shortcut for the common case: bill one client for N hours at an hourly rate. Creates and returns a single-line invoice, converting the rate into target_currency when you supply fx_rates, and echoing back any entry_ids.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • invoice_mark_paidRecord a payment on one invoice.No findings

    Why it is in this group

    • The name "invoice_mark_paid" says "mark": a word for a change.
    Description, as the server wrote it
    Record a payment on one invoice. amount is in MAJOR units and ADDS to what is paid, never replaces it; omit it to settle the rest. An overpayment is refused, naming the open balance.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • invoice_pdfCall this tool to write one stored invoice as an A4 PDF and return the path: issuer, BILL TO, dates, items, taxes and totals.1 finding

    Why it is in this group

    • The description's first verb is "call": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

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

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "call": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Call this tool to write one stored invoice as an A4 PDF and return the path: issuer, BILL TO, dates, items, taxes and totals. Free stamps a credit line and no logo; Pro renders it unbranded with your logo.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • license_activateTurn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle.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.
    Description, as the server wrote it
    Turn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
Only reads 5Show 5 read-only tools
  • client_listList every stored client with id, address, email and VAT id.Reads private dataReads text others writeNo findings

    Why it is in this group

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

    What it can reach

    • private-dataThe description's first sentence says "list" and "email": it reads mail.
    • untrusted-inputThe description's first sentence says "list" and "email": it reads inbound email, which other people can write.
    Description, as the server wrote it
    List every stored client with id, address, email and VAT id. No arguments, and it writes nothing. With none stored it says so: invoice_create also creates a client from the name you pass.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • invoice_getReturn the full stored record for one invoice number, including every line, tax breakdown, and the balance still open after any credit note issued against it (see credited_minor).Reads private dataNo findings

    Why it is in this group

    • The name "invoice_get" says "get": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "return" and "note": it reads notes.
    Description, as the server wrote it
    Return the full stored record for one invoice number, including every line, tax breakdown, and the balance still open after any credit note issued against it (see credited_minor).

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • invoice_listList invoices by number: client, dates, currency, subtotal, discount, tax lines, total, status, paid, credited and the balance still due after any credit note.Reads private dataNo findings

    Why it is in this group

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

    What it can reach

    • private-dataThe description's first sentence says "list" and "note": it reads notes.
    Description, as the server wrote it
    List invoices by number: client, dates, currency, subtotal, discount, tax lines, total, status, paid, credited and the balance still due after any credit note. Filter by status, client and date range.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • license_statusReport this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL.Reads text others writeNo findings

    Why it is in this group

    • The name "license_status" says "status": a word for reading.

    What it can reach

    • untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
    Description, as the server wrote it
    Report this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL. Call it to explain a free-tier refusal. No arguments, nothing changes.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • overdue_reportList every invoice not paid in full whose due date has passed, worst first, with days overdue and the amount, then a total per currency.No findings

    Why it is in this group

    • The description's first verb is "list": a word for reading.
    Description, as the server wrote it
    List every invoice not paid in full whose due date has passed, worst first, with days overdue and the amount, then a total per currency. Free. Use invoice_list for everything still open.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

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.

6 paths in this server alone from private data, through text someone else wrote, to a way out. Denying 1 outbound tool breaks every one.

Reads private data3
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write2
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out1
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
deny to break every path
{
  "permissions": {
    "deny": [
      "mcp__invoice-generator__business_set"
    ]
  }
}

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

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Tools listed without sign-in

Looked at Oct 22, 2026, 15:27 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable
yes
HTTP status of an anonymous initialize
200
tools/list served without credentials
yes
Tools that change things, listed without credentials
8
Protocol version
2025-06-18
WWW-Authenticate on 401
not observed
resource_metadata in WWW-Authenticate
not observed
RFC 9728 protected resource metadata
https://mcp.zovo.one/.well-known/oauth-protected-resource
Authorization servers
https://mcp.zovo.one
Legacy HTTP+SSE transport
no
Dynamic client registration
yes
Client ID metadata documents
no
  • HighThe whole server

    The endpoint served tools/list without credentials, and the list has 8 tools that change things (1 destructive, 7 write). Whether a call also works without credentials was not tested: tools are never called.

    Matched text

    https://mcp.zovo.one/mcp/invoice-generator: tools/list returned 13 tools to an anonymous client, including client_delete (destructive), business_set (write), client_add (write), invoice_create (write), invoice_from_hours (write) and 3 more

    What this check looks for

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warnbusiness_set

    The description contains "other server", wording about other tools or servers.

    Matched text

    description: "...one). Saved to the shared profile every other server reads. Call it once, first."

    What this check looks for
  • Warninvoice_pdf

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

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "call": a word for a change.

    What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 0.21.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http invoice-generator https://mcp.zovo.one/mcp/invoice-generator --header 'Authorization: <your-authorization>'
claude mcp add --transport http invoice-generator https://mcp.zovo.one/mcp/invoice-generator --header 'Authorization: <your-authorization>'

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__invoice-generator__client_list",
      "mcp__invoice-generator__invoice_list",
      "mcp__invoice-generator__invoice_get",
      "mcp__invoice-generator__overdue_report",
      "mcp__invoice-generator__license_status"
    ],
    "ask": [
      "mcp__invoice-generator__business_set",
      "mcp__invoice-generator__client_add",
      "mcp__invoice-generator__invoice_create",
      "mcp__invoice-generator__invoice_from_hours",
      "mcp__invoice-generator__invoice_mark_paid",
      "mcp__invoice-generator__invoice_pdf",
      "mcp__invoice-generator__license_activate"
    ],
    "deny": [
      "mcp__invoice-generator__client_delete"
    ]
  }
}

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 invoice-generator. Review it before you use it.

Capability tags behind 5 rules
  • mcp__invoice-generator__business_set outbound
  • mcp__invoice-generator__client_list private-data, untrusted-input
  • mcp__invoice-generator__invoice_list private-data
  • mcp__invoice-generator__invoice_get private-data
  • mcp__invoice-generator__license_status untrusted-input

Pin

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/io.github.theluckystrike/invoice-generator/verify?hash=ecacc34d84740fe0c5f297fa69c4d46ddd39a7c6c652817aeed39bbadb5f594f" | jq -e '.changed == false'

Pinned hash ecacc34d8474, from Oct 21, 2026, 19:36 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.theluckystrike/invoice-generator/changes.xml

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anlyon.dev badge for io.github.theluckystrike/invoice-generator
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Source: MCP Registry · repository. Synced Oct 21, 2026, 18:50 UTC.