dev.crelvo/german-tax-data

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

German municipal tax data (Hundesteuer, Zweitwohnungsteuer, Pfaendung), cited to the source

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "german-tax-data": {
      "url": "https://data.crelvo.dev/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (10)

• list_datasets

  List the available hand-verified German municipal tax/fee datasets (Hundesteuer, Zweitwohnungsteuer, Pfändung), their coverage, source sites and refresh cadence. Call this first to see what you can query.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• hundesteuer_lookup

  Look up the German dog tax (Hundesteuer) for a city: annual rate for one or more dogs, listed-dog (Listenhund) surcharge, the city's pricing model, its rank among the largest cities, plus the official source and Stand. Rates verified against each municipal Satzung.

  Parameters:

  • city (required) — string — City name or slug, e.g. "Köln", "muenchen", "Frankfurt"
  • dogs — integer — Number of dogs (default 1)
  • listed — boolean — Treat as a listed/dangerous-breed dog (Listenhund) if the city has a higher rate

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• hundesteuer_ranking

  Ranking of German cities by Hundesteuer (first dog, per year): most expensive or cheapest, plus the national average across the covered cities.

  Parameters:

  • limit — integer — How many cities to return
  • order — string

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• hundesteuer_by_state

  Average German dog tax (Hundesteuer, first dog per year) per Bundesland (federal state), aggregated over the covered largest cities — the data behind the Deutschlandkarte. Answers 'which German state has the highest/lowest dog tax'. Note: a mean over cities, not an official state rate (the tax is municipal).

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• hundesteuer_changes

  List German cities that changed their Hundesteuer (dog tax) rate in a given year — the fresh-news angle for the annual city comparison. Only 2026 is curated, and it is the default: 14 of the covered cities changed their rate, led by Köln (174 EUR), Lübeck (156 EUR), Lünen (156 EUR). Also returns outlook_2027: 5 cities that have announced or resolved an increase for 2027 but are NOT yet charging it — announced and in force are kept apart deliberately. Every entry checked individually against the municipal statute.

  Parameters:

  • year — integer

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• zweitwohnungsteuer_lookup

  Look up the German second-home tax (Zweitwohnungsteuer) for a city: whether the city levies it, the rate and its basis (net cold rent etc.), the rank among cities, official source and Stand. Optionally pass a monthly cold rent to get the annual tax. Returns state = keine_steuer | berechenbar | sondermodell.

  Parameters:

  • city (required) — string — City name or slug, e.g. "Stuttgart", "muenchen", "Konstanz"
  • monthly_rent — Monthly cold rent (Kaltmiete) in EUR, to compute the annual tax (only for computable cities)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• zweitwohnungsteuer_ranking

  Ranking of German cities by Zweitwohnungsteuer rate: highest or lowest, plus the average, count with a computable rate, and count of cities with no second-home tax.

  Parameters:

  • limit — integer — How many cities to return
  • order — string

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• zweitwohnungsteuer_changes

  List German cities that changed (raised or newly introduced) their Zweitwohnungsteuer in a given year — the fresh-news angle. Only 2026 is curated, and it is the default: 12 cities changed their rate, led by Potsdam (25 %), Borkum (22 %), Stuttgart (20 %). Every entry checked individually against the municipality's own statute.

  Parameters:

  • year — integer

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• zweitwohnungsteuer_by_state

  Average German second-home tax (Zweitwohnungsteuer) rate in percent per Bundesland (federal state), aggregated over the levying cities with a computable rate — the data behind the Deutschlandkarte. Answers 'which German state has the highest/lowest second-home tax'. Note: a mean over cities, not an official state rate (the tax is municipal).

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• pfaendung_calc

  Compute the attachable portion of monthly net income under German §850c ZPO (Pfändung / wage garnishment), using the current official Pfändungsfreigrenzenbekanntmachung. Returns attachable amount, remaining amount, exempt base and the P-Konto base. Informational, not legal advice.

  Parameters:

  • net_income_eur (required) — number — Monthly NET income in EUR
  • dependents — integer — Number of maintenance-dependent persons (0-5)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

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Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.