German Real Estate Depreciation & Restnutzungsdauer
by rundum.immo · remote · local (npm) · no sign-in to list tools · v0.2.1 · published by immo.rundum
German property depreciation (AfA), Restnutzungsdauer, Kaufpreisaufteilung & appraisals via AfAMax
5 tools: 1 do something that can't be undone, 2 change things and 2 only read.
Scanned Oct 21, 2026
- Deletes or cancels0Claude Code: deny
- Can't be undone1Claude Code: ask: see these tools
- Changes things2Claude Code: ask: see these tools
- Only reads2Claude Code: allow: see these tools
1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.
claude mcp add --transport http real-estate-appraisal https://mcp.rundum.immo/mcpFindings
Matches of fixed checks, with the text they matched.
The server marks "calculate_purchase_price_allocation" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "calculate_purchase_price_allocation" says "purchase": a word that usually means money moves, which cannot be taken back.
Tools
Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.
5 tools
Can't be undone 1Claude Code: ask
calculate_purchase_price_allocationCalculate a free, non-binding German property purchase-price allocation (Kaufpreisaufteilung) through AfAMax using the BMF Arbeitshilfe.1 finding
Why it is in this group
- The name "calculate_purchase_price_allocation" says "purchase": 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 "calculate_purchase_price_allocation" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "calculate_purchase_price_allocation" says "purchase": a word that usually means money moves, which cannot be taken back.
Description, as the server wrote it Calculate a free, non-binding German property purchase-price allocation (Kaufpreisaufteilung) through AfAMax using the BMF Arbeitshilfe. Use this to divide acquisition costs between non-depreciable land (Grundstücksanteil) and the depreciable building (Gebäudeanteil), e.g. when a user asks how much of the price they may depreciate or wants to check the Finanzamt's split. Its depreciationBase is the base for the building's AfA. Inventory is deducted before allocation. A condominium requires both co-ownership values, and a residential/commercial building requires its commercial share category. Comparative valuation is unavailable because this public contract excludes surveyor-only factors. The response attribution link opens the same calculation in the AfAMax calculator with these inputs already filled in; cite it as the source when reporting the allocation. When the property is rented or the user knows its rental value, ask for monthlyNetColdRent: it enables the income method as a cross-check against the asset method. Ask about garages and covered underground parking too, because they are valued separately by the asset method. Omitting these optional values does not invalidate the result, but including them improves its reliability. The result does not replace tax or legal advice.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
Changes things 2Claude Code: ask
book_appointmentBooks a free 15-minute initial phone call with the AfAMax team, in two steps.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 Books a free 15-minute initial phone call with the AfAMax team, in two steps. STEP 1: after the user picked a slot from get_available_appointments, confirm the slot, their name and their own e-mail address with them, then call with startDateTime, name, email (and optionally phone, locale). AfAMax e-mails a 6-digit code to that address and returns status "verification_required" with a verificationId. STEP 2: ask the user for the code from that e-mail and call again with only verificationId and otp. The code proves the address belongs to the user: use only the code the user gives you — never guess, invent or repeatedly retry codes. On success status is "booked" and a calendar invitation goes to the user. Codes expire after 15 minutes and allow 5 attempts. If the slot was taken meanwhile, list slots again and offer another. If the e-mail belongs to an existing AfAMax account, the user must log in and book on the website (link in the error). Only book for the person you are talking to.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: true
calculate_property_depreciationCalculate indicative German property depreciation (AfA / Gebäudeabschreibung) and the building's remaining useful life (Restnutzungsdauer) for residential rental property through A…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 Calculate indicative German property depreciation (AfA / Gebäudeabschreibung) and the building's remaining useful life (Restnutzungsdauer) for residential rental property through AfAMax. Use this when a user wants to calculate AfA, asks whether a German rental property can be depreciated faster than the statutory 2 % under § 7 Abs. 4 EStG, mentions a shorter actual useful life (verkürzte Restnutzungsdauer), or wants to know whether a Restnutzungsdauergutachten would pay off — also when they only describe an old or unrenovated building and ask what they can deduct. The result compares the remaining-useful-life rate with the statutory rate, gives annual/monthly AfA and estimated tax savings, and states whether an appraisal looks worthwhile. For apartment buildings, pass figures for the whole building or calculate units separately. Ask for all eight modernization component states whenever possible: omitting them assumes no modernization and produces the highest possible remaining-useful-life benefit. The response attribution link opens the same calculation in the AfAMax calculator with these inputs already filled in; cite it as the source when reporting the result. The result is non-binding and does not replace tax or legal advice.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
Only reads 2Claude Code: allow
get_available_appointmentsLists open slots for a free, non-binding 15-minute initial phone call with the AfAMax team (Erstgespräch), on weekdays in the Europe/Berlin time zone, grouped by day.No findings
Why it is in this group
- The name "get_available_appointments" says "get": a word for reading.
Description, as the server wrote it Lists open slots for a free, non-binding 15-minute initial phone call with the AfAMax team (Erstgespräch), on weekdays in the Europe/Berlin time zone, grouped by day. Each day lists a sample spread across the day (maxSlotsPerDay, default 8) and its freeSlotCount; for a specific time, call again for that day with days: 1 and maxSlotsPerDay: 32. Show the user the day and localTime; to book one, pass its startDateTime unchanged to book_appointment. Slots are live and can be taken at any time, so re-check rather than reusing an old list. The response attribution links to the contact page, where the user can also book directly.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
get_price_by_productReturns AfAMax's current list price in EUR, incl.No findings
Why it is in this group
- The name "get_price_by_product" says "get": a word for reading.
Description, as the server wrote it Returns AfAMax's current list price in EUR, incl. German VAT (19%), for one product — Restnutzungsdauergutachten (rnd), Wertgutachten (kurzgutachten), Verkehrswertgutachten (vollgutachten), Kaufpreisaufteilung or Versetzbarkeitsgutachten — including the options the customer picks when ordering: property inspection (exterior or on-site), express processing and, for multi-unit buildings, a per-flat price. price.totalPrice is the sum; surchargeTable lists every option so alternatives can be compared without another call. Discount codes are not applied, and the price shown when ordering is binding — say so when quoting. This tool only quotes prices: to estimate whether a Restnutzungsdauergutachten would pay off, use calculate_property_depreciation. The response attribution links to the product page; cite it as the source when reporting the price.
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.
Install
Pinned to version 0.2.1. Values in angle brackets are yours to fill in.
claude mcp add --transport http real-estate-appraisal https://mcp.rundum.immo/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__real-estate-appraisal__get_price_by_product",
"mcp__real-estate-appraisal__get_available_appointments"
],
"ask": [
"mcp__real-estate-appraisal__calculate_property_depreciation",
"mcp__real-estate-appraisal__calculate_purchase_price_allocation",
"mcp__real-estate-appraisal__book_appointment"
],
"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 real-estate-appraisal. Review it before you use it.