# Arbitragex Amazon FBA Calculator (Amazon.de)

> Free Amazon.de seller tools: referral & FBA fees, profit, margin, ROI, break-even buy price.

- name: de.arbitragex/fba-rechner
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/de.arbitragex%2Ffba-rechner
- tools: https://api.protogrid.dev/v1/servers/de.arbitragex%2Ffba-rechner/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "fba-rechner": {
      "type": "http",
      "url": "https://arbitragex.de/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-11d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (strong)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 5 of 5 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,324 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 5, about 1,324 tokens to load them all
- tool set hash: fc801ca72c74fec0ba977dd7e9e5c910
- badge: [![protogrid quality](https://protogrid.dev/badge/de.arbitragex/fba-rechner.svg)](https://protogrid.dev/servers/de.arbitragex/fba-rechner)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://arbitragex.de/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (5)

- `calculate_amazon_fba_profit`: Berechnet Gewinn, Marge, ROI und den Break-even-Einkaufspreis für einen Artikel auf Amazon.de (Verkaufsgebühr nach Kategorie, FBA-Gebühr, Umsatzsteuer). Calculates profit, margin, ROI and break-even buy price for Amazon.de FBA sellers. Ohne fba_fee wird die FBA-Gebühr aus Länge und Gewicht geschätzt.
- `estimate_fba_fee`: Schätzt die FBA-Versandgebühr (netto) auf Amazon.de aus längster Seite und Gewicht: Median, 25./75. Perzentil echter Gebühren vergleichbarer Artikel. Estimates the Amazon.de FBA fee from package size and weight.
- `get_amazon_referral_fee`: Verkaufsgebühr (Provision, netto) für einen Preis in einer Amazon.de-Kategorie, inklusive Staffel- und Mindestgebühr. Amazon.de referral fee for a price and category.
- `list_amazon_categories`: Liste aller Amazon.de-Kategorien mit Schlüssel und Gebührenregel (Quelle: offizielle Gebührenübersicht in Seller Central). Optional nach Stichwort filtern. Lists Amazon.de categories and referral fee rules.
- `read_seller_guide`: Ratgeber für Amazon-Verkäufer (Verkaufsgebühren 2026, FBA-Größenklassen, Amazon-Arbitrage in Deutschland, Umsatzsteuer und Marge, Freischaltung/Ungating). Ohne slug: Liste der Artikel. German guides for Amazon sellers.