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Inflation and Rents by German Federal State (VPI, Nettokaltmieten) — Destatis, Monthly

Consumer price index (since 1995) or net rent index (Nettokaltmieten, since 2005) for each German federal state, with the change vs. same month of the previous year and vs. previous month. The rates are computed here from the published index (one decimal), the same method Destatis uses for its national rates (checked: identical for all months since 1992); state statistical offices may publish rates that differ by 0.1 in rare cases.

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/de-state-prices?state=BY&measure=cpi&compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"de-state-prices"}

Parameters

Example response (live, compact)

{
  "apiId": "de-state-prices",
  "data_freshness": "live",
  "data": {
    "state": "BY",
    "measure": "Consumer price index (2020=100)",
    "latest": {
      "period": "2026-09",
      "index": 127.1,
      "change_vs_year_ago_pct_computed": 3.2,
      "change_vs_previous_month_pct_computed": 0.6
    },
    "history": [
      {
        "period": "2025-09",
        "index": 123.2,
        "change_vs_year_ago_pct_computed": 2.4,
        "change_vs_previous_month_pct_computed": 0.4
      },
      {
        "period": "2025-10",
        "index": 123.6,
        "change_vs_year_ago_pct_computed": 2.2,
        "change_vs_previous_month_pct_computed": 0.3
      },
      {
        "period": "2025-11",
        "index": 123.3,
        "change_vs_year_ago_pct_computed": 2.2,
        "change_vs_previous_month_pct_computed": -0.2
      },
      {
        "period": "2025-12",
        "index": 123.3,
        "change_vs_year_ago_pct_computed": 1.7,
        "change_vs_previous_month_pct_computed": 0
      },
      {
        "period": "2026-01",
        "index": 123.3,
        "change_vs_year_ago_pct_computed": 2.1,
        "change_vs_previous_month_pct_computed": 0
      },
      {
        "period": "2026-02",
        "index": 123.6,
        "change_vs_year_ago_pct_computed": 1.9,
        "change_vs_previous_month_pct_computed": 0.2
      },
      {
        "period": "2026-03",
        "index": 125.1,
        "change_vs_year_ago_pct_computed": 2.8,
        "change_vs_previous_month_pct_computed": 1.2
      },
      {
        "period": "2026-04",
        "index": 125.7,
        "change_vs_year_ago_pct_computed": 2.9,
        "change_vs_previous_month_pct_computed": 0.5
      },
      {
        "period": "2026-05",
        "index": 125.5,
        "change_vs_year_ago_pct_computed": 2.6,
        "change_vs_previous_month_pct_computed": -0.2
      },
      {
        "period": "2026-06",
        "index": 125.2,
        "change_vs_year_ago_pct_computed": 2.5,
        "change_vs_previous_month_pct_computed": -0.2
      },
      {
        "period": "2026-07",
        "index": 126,
        "change_vs_year_ago_pct_computed": 2.8,
        "change_vs_previous_month_pct_computed": 0.6
      },
      {
        "period": "2026-08",
        "index": 126.3,
        "change_vs_year_ago_pct_computed": 2.9,
        "change_vs_previous_month_pct_computed": 0.2
      },
      {
        "period": "2026-09",
        "index": 127.1,
        "change_vs_year_ago_pct_computed": 3.2,
        "change_vs_previous_month_pct_computed": 0.6
      }
    ],
    "computed": "Rates computed from the published index rounded to one decimal (Destatis method); may differ by 0.1 from state office publications in rare cases",
    "attribution": "Source: Statistisches Bundesamt (Destatis), GENESIS-Online, dl-de/by-2-0"
  },
  "source": "Statistisches Bundesamt (Destatis), GENESIS-Online",
  "license": "Destatis GENESIS-Online, Datenlizenz Deutschland – Namensnennung – Version 2.0"
}

Source & license