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Alder Invoices

by alderinvoices.com · remote · no sign-in to list tools · v1.0.0 · published by com.alderinvoices

Free invoice drafts, templates and direct PDF generation for AI agents. No account needed.

Changes · 3
CompareRegistry entry

4 tools: 3 change things and 1 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 invoice-generator https://alderinvoices.com/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warnprepare_invoice_template

    The server marks "prepare_invoice_template" 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 "select": a word for a change.

    What this check looks for
  • Warnrender_invoice_pdf

    The server marks "render_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 "generate": a word for a change.

    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.

4 tools

Changes things 3Claude Code: ask
  • draft_invoicePrice an invoice (subtotal, tax after discount, shipping, total) and get a builderUrl that opens the free AI Invoice Generator builder prefilled.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
    Price an invoice (subtotal, tax after discount, shipping, total) and get a builderUrl that opens the free AI Invoice Generator builder prefilled. The human can download a PDF there, or connect Stripe to get a pay link that accepts partial payments. Nothing is stored or sent.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Draft an invoice
  • prepare_invoice_templateSelect a template by ID and add sender, customer and dates.1 finding

    Why it is in this group

    • The description's first verb is "select": 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 "prepare_invoice_template" 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 "select": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Select a template by ID and add sender, customer and dates. Returns invoice JSON, calculated totals and an editable builderUrl. Example amounts need review. Nothing stored or sent.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Prepare invoice template
  • render_invoice_pdfGenerate a downloadable PDF artifact without a browser, account or storage.1 finding

    Why it is in this group

    • The description's first verb is "generate": 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 "render_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 "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Generate a downloadable PDF artifact without a browser, account or storage. Requires sender/customer names, invoice number, dates and complete line items. Western European text only; unsupported characters or logos return an explicit error, use the web builder for those. Does not send invoices or process payments.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Render invoice PDF
Only reads 1Claude Code: allow
  • list_invoice_templatesList five editable sample invoices: hourly consulting, retainers, milestones, contractor labor/materials and deposit requests.No findings

    Why it is in this group

    • The name "list_invoice_templates" says "list": a word for reading.
    Description, as the server wrote it
    List five editable sample invoices: hourly consulting, retainers, milestones, contractor labor/materials and deposit requests. Example rates in USD cents, not pricing advice. No account needed.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: List templates

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.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http invoice-generator https://alderinvoices.com/mcp

Run in a terminal.

Claude Code permissions

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

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__invoice-generator__list_invoice_templates"
    ],
    "ask": [
      "mcp__invoice-generator__draft_invoice",
      "mcp__invoice-generator__prepare_invoice_template",
      "mcp__invoice-generator__render_invoice_pdf"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as invoice-generator. Review it before you use it.