Arbitragex Amazon FBA Calculator (Amazon.de)

FBA-Gebühr nach Amazon-Tarif

estimate_fba_fee

Read-onlyIdempotent

FBA-Versandgebühr (netto) je Einheit für Amazon.de, .fr, .it oder .es nach Amazons Tarifübersicht ab 01.07.2026: Größenklasse und Versandgewicht aus den Maßen, Tarif des Landes, Aufschlag (1,5 %, ab 02.11.2026 2 %), Programm Mitteleuropa, EFN, Hochsaison DE, Niedrigpreistarif (dafür sale_price und category angeben). Amazon FBA fulfilment fee for DE/FR/IT/ES from the official rate card.

Input Schema

Name	Required	Description
`category`	No	Kategorie-Schlüssel (optional)
`weight_g`	Yes	Stückgewicht verpackt in Gramm
`width_cm`	Yes	Breite der Verpackung in cm
`height_cm`	Yes	Höhe der Verpackung in cm
`length_cm`	Yes	Länge der Verpackung in cm
`sale_price`	No	Verkaufspreis brutto in EUR (optional, für den Niedrigpreistarif)
`marketplace`	No	Marktplatz: DE, FR, IT oder ES (Standard DE)
`lithium_battery`	No	Enthält Lithiumbatterie oder ist Gefahrgut: +0,10 € (Standard false)
`storage_country`	No	Land des Lagerbestands, wenn anders als marketplace (EFN-Gebühr); leer = gleiches Land/Pan-EU
`central_europe_program`	No	Programm Mitteleuropa (CEP) bei Lager in DE; ohne: +0,26 € je Einheit (Standard false)

Schema Changelog

Changes observed during successful MCP inspections.

Changed12 schema fields changedOct 26, 2026

addedInput schema / properties / category

Added value: +{
+  "description": "Kategorie-Schlüssel (optional)",
+  "enum": [
+    "zubehoer-amazon-geraete",
+    "auto-motorsport",
+    "baby",
+    "kinderwagen",
+    "rucksaecke-handtaschen",
+    "beauty-drogerie",
+    "arbeitshandschuhe",
+    "bier-wein-spirituosen",
+    "buecher",
+    "gewerbe-industrie",
+    "bekleidung",
+    "elektronik-gewerbe-energie",
+    "kompakte-elektrogeraete",
+    "computer",
+    "elektronik",
+    "fahrradzubehoer",
+    "elektronik-zubehoer",
+    "drucker-scanner-zubehoer",
+    "brillen",
+    "augenschutz",
+    "schuhe",
+    "elektrogeraete-standard",
+    "moebel",
+    "moebelzubehoer",
+    "lebensmittel",
+    "handmade",
+    "haushalt",
+    "kueche",
+    "heimtextilien",
+    "schmuck",
+    "garten",
+    "koffer-taschen",
+    "koffer-zubehoer",
+    "matratzen",
+    "musik-video-dvd",
+    "musikinstrumente",
+    "buerobedarf",
+    "verpackung",
+    "haustierbedarf",
+    "haustier-kleidung-futter",
+    "software",
+    "sport-freizeit",
+    "reifen",
+    "werkzeuge-baumarkt",
+    "tuer-fenster-dusche",
+    "kleber-kabelbinder",
+    "spielzeug",
+    "videospiele",
+    "konsolen",
+    "vitamine",
+    "uhren",
+    "andere"
+  ],
+  "type": "string"
+}

addedInput schema / properties / central_europe_program

Added value: +{
+  "description": "Programm Mitteleuropa (CEP) bei Lager in DE; ohne: +0,26 € je Einheit (Standard false)",
+  "type": "boolean"
+}

addedInput schema / properties / height_cm

Added value: +{
+  "description": "Höhe der Verpackung in cm",
+  "minimum": 0.1,
+  "type": "number"
+}

addedInput schema / properties / length_cm

Added value: +{
+  "description": "Länge der Verpackung in cm",
+  "minimum": 0.1,
+  "type": "number"
+}

addedInput schema / properties / lithium_battery

Added value: +{
+  "description": "Enthält Lithiumbatterie oder ist Gefahrgut: +0,10 € (Standard false)",
+  "type": "boolean"
+}

removedInput schema / properties / longest_side_mm

Removed value: -{
-  "description": "Längste Seite der Verpackung in mm",
-  "minimum": 1,
-  "type": "number"
-}

addedInput schema / properties / marketplace

Added value: +{
+  "description": "Marktplatz: DE, FR, IT oder ES (Standard DE)",
+  "enum": [
+    "DE",
+    "FR",
+    "IT",
+    "ES"
+  ],
+  "type": "string"
+}

addedInput schema / properties / sale_price

Added value: +{
+  "description": "Verkaufspreis brutto in EUR (optional, für den Niedrigpreistarif)",
+  "minimum": 0.01,
+  "type": "number"
+}

addedInput schema / properties / storage_country

Added value: +{
+  "description": "Land des Lagerbestands, wenn anders als marketplace (EFN-Gebühr); leer = gleiches Land/Pan-EU",
+  "enum": [
+    "DE",
+    "FR",
+    "IT",
+    "ES"
+  ],
+  "type": "string"
+}

changedInput schema / properties / weight_g / description

Previous value: -"Versandgewicht in Gramm"New value: +"Stückgewicht verpackt in Gramm"

addedInput schema / properties / width_cm

Added value: +{
+  "description": "Breite der Verpackung in cm",
+  "minimum": 0.1,
+  "type": "number"
+}

changedInput schema / required

Previous value: -[
-  "longest_side_mm",
-  "weight_g"
-]New value: +[
+  "length_cm",
+  "width_cm",
+  "height_cm",
+  "weight_g"
+]

First observedOct 9, 2026

TDQS

A4.5/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Beyond the read-only annotations, the description discloses the rate-card effective date, country tariffs, surcharge percentages, CEP, EFN, DE high-season treatment, and low-price tariff conditions. These are substantive behavioral details an agent needs to interpret the calculation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is front-loaded with the fee calculation and appropriately dense for a 10-parameter pricing tool. The single long German sentence is somewhat run-on, but almost every clause conveys relevant rate-card behavior.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The description covers the calculation target, marketplaces, rate period, and major conditional surcharges/programs, which is substantial for a complex fee tool with no output schema. It could be slightly stronger by explicitly stating the returned unit/currency and rounding assumptions.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description adds meaningful relationships, especially that the low-price tariff requires both sale_price and category, and it contextualizes EFN and CEP inputs beyond the individual schema descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific calculation: net FBA shipping fee per unit for DE/FR/IT/ES based on Amazon's official rate card. It clearly distinguishes this from referral-fee and profit-calculation siblings by focusing narrowly on the FBA fulfilment fee.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context for when conditional inputs apply, such as sale_price and category for the low-price tariff, CEP, EFN, and DE high season. It does not explicitly name alternatives or say when not to use this versus calculate_amazon_fba_profit, but the usage context is otherwise clear.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All Arbitragex Amazon FBA Calculator (Amazon.de) tools Inspect

Try in Browser

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Glama MCP Gateway

Add one secure layer between your agents and this server.

Resources

Need Help?