_ registry / mcp streamable-http · checked 5h ago

crelvo-german-tax-data

https://data.crelvo.dev

Registry code: 13e02b7ff5a20227

api record

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

from a public catalogue that lists it, not from the operator

endpoint
https://data.crelvo.dev/mcp
protocol
streamable-http ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing · is it yours? claim it
karma
0 · newcomer
_ is it live, free and safe measured by this hub
Is crelvo-german-tax-data live?
Yes — it answered the hub's last check (checked 5h ago). It answered 100% of checks over the last 30 days.
Is crelvo-german-tax-data free to use?
Yes — the hub reached it with no key and no payment.
What tools does crelvo-german-tax-data have?
10 tools: zweitwohnungsteuer_changes, pfaendung_calc, hundesteuer_lookup, list_datasets, zweitwohnungsteuer_ranking, zweitwohnungsteuer_by_state, hundesteuer_ranking, hundesteuer_by_state, ….
Is crelvo-german-tax-data safe to connect?
The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
reachable
live
uptime, 30 days
100%

90 days 99.7%· all time 99.7%

latency
295ms

last good check

priced tools
0

of 10 tools

_ answered our checks, 90 days 324 checks · signed record
  • down → live
  • degraded → live
  • live → degraded· timeout after 20000ms
  • unknown → live
_ what it is for
topic
finance & markets accounting & tax
used for
  • look up german dog tax for a city
  • look up second-home tax for a city
  • rank cities by municipal tax
  • calculate wage garnishment amount
takes → gives
text, data → data
tools
10 reads
_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts
0

through this hub

calls served
0

successful

paid through this hub
0 USDC

what callers paid

inferred, not observed

Access was read off the card rather than seen on the wire: inferred: the handshake, the tool list and a call without arguments went through with no key and no payment asked; no tool was run

_ what it can do 10 tools
10 never probed 0 of 10 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • zweitwohnungsteuer_changes reads unknown never probed

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "year": {
      "type": "integer",
      "default": 2026,
      "maximum": 2030,
      "minimum": 2020
    }
  }
}
    arguments 12 lines
  • pfaendung_calc reads unknown never probed

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "net_income_eur"
  ],
  "properties": {
    "dependents": {
      "type": "integer",
      "default": 0,
      "maximum": 5,
      "minimum": 0,
      "description": "Number of maintenance-dependent persons (0-5)"
    },
    "net_income_eur": {
      "type": "number",
      "minimum": 0,
      "description": "Monthly NET income in EUR"
    }
  }
}
    arguments 21 lines
  • hundesteuer_lookup reads unknown 26h ago

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "city"
  ],
  "properties": {
    "city": {
      "type": "string",
      "description": "City name or slug, e.g. \"Köln\", \"muenchen\", \"Frankfurt\""
    },
    "dogs": {
      "type": "integer",
      "default": 1,
      "maximum": 10,
      "minimum": 1,
      "description": "Number of dogs (default 1)"
    },
    "listed": {
      "type": "boolean",
      "default": false,
      "description": "Treat as a listed/dangerous-breed dog (Listenhund) if the city has a higher rate"
    }
  }
}
    arguments 25 lines
  • list_datasets reads unknown never probed

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}
    arguments 5 lines
  • zweitwohnungsteuer_ranking reads unknown never probed

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 120,
      "minimum": 1,
      "description": "How many cities to return"
    },
    "order": {
      "enum": [
        "expensive",
        "cheapest"
      ],
      "type": "string",
      "default": "expensive"
    }
  }
}
    arguments 21 lines
  • zweitwohnungsteuer_by_state reads unknown never probed

    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).

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}
    arguments 5 lines
  • hundesteuer_ranking reads unknown never probed

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

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 100,
      "minimum": 1,
      "description": "How many cities to return"
    },
    "order": {
      "enum": [
        "expensive",
        "cheapest"
      ],
      "type": "string",
      "default": "expensive"
    }
  }
}
    arguments 21 lines
  • hundesteuer_by_state reads unknown never probed

    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).

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}
    arguments 5 lines
  • hundesteuer_changes reads unknown never probed

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "year": {
      "type": "integer",
      "default": 2026,
      "maximum": 2030,
      "minimum": 2020
    }
  }
}
    arguments 12 lines
  • zweitwohnungsteuer_lookup reads unknown 26h ago

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "city"
  ],
  "properties": {
    "city": {
      "type": "string",
      "description": "City name or slug, e.g. \"Stuttgart\", \"muenchen\", \"Konstanz\""
    },
    "monthly_rent": {
      "anyOf": [
        {
          "type": "number",
          "minimum": 0
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "description": "Monthly cold rent (Kaltmiete) in EUR, to compute the annual tax (only for computable cities)"
    }
  }
}
    arguments 26 lines
_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

  1. Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
  2. Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
  3. Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id 13e02b7ff5a20227.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/13e02b7ff5a20227/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

measured by brick.blue

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The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we know
card completeness
100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
0
ok
0
failed
0
success rate
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median latency
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work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.