Roundhouse

teuerung.halowerk.com

Compare food-category HICP rates across reporting countries with an explicit reference period. Example: category CP0114, geos DE and AT. Missing source observations are never replaced by zero.

SearchLiveeip155:8453Exactvia cdp
https://teuerung.halowerk.com/v1/food-inflation/compare
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far.
$22.11
Verified settled volume
A floor: summed over 5,000 of 6,901 verified settlements.
$0.0020
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-20 21:16Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "docs": "https://teuerung.halowerk.com/llms.txt",
  "name": "food_inflation_compare",
  "error": "payment_required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "asset": "USDC",
        "version": "2",
        "eip712Domain": {
          "name": "USD Coin",
          "chainId": 8453,
          "version": "2",
          "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        },
        "network_name": "Base Mainnet",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "pricing": "https://teuerung.halowerk.com/pricing",
  "resource": {
    "url": "https://teuerung.halowerk.com/v1/food-inflation/compare",
    "mimeType": "application/json",
    "description": "Places the harmonised annual inflation rate of one food category side by side for up to twelve EU member states (plus EU27_2020 and EA20 as reference). Because every value comes from the same harmonised index with the same classification, the figures are comparable, unlike national consumer price indices. Returns per country the latest period, annual and monthly rate and index, then the spread between highest and lowest and which countries sit at each end."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "geos": [
              "DE",
              "AT",
              "FR",
              "IT",
              "EU27_2020"
            ],
            "category": "CP011"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "category",
                  "geos"
                ],
                "properties": {
                  "geos": {
                    "type": "array",
                    "items": {
                      "type": "string",
                      "maxLength": 9,
                      "minLength": 2
                    },
                    "maxItems": 12,
                    "minItems": 2,
                    "description": "EU member state codes, EU27_2020 or EA20."
                  },
                  "category": {
                    "type": "string",
                    "maxLength": 60,
                    "minLength": 2,
                    "description": "COICOP 2018 code or English keyword."
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "price_usdc": "0.002",
  "description": "Places the harmonised annual inflation rate of one food category side by side for up to twelve EU member states (plus EU27_2020 and EA20 as reference). Because every value comes from the same harmonised index with the same classification, the figures are comparable, unlike national consumer price indices. Returns per country the latest period, annual and monthly rate and index, then the spread between highest and lowest and which countries sit at each end. Countries without a published value are listed with null and the reason.",
  "inputSchema": {
    "type": "object",
    "required": [
      "category",
      "geos"
    ],
    "properties": {
      "geos": {
        "type": "array",
        "items": {
          "type": "string",
          "maxLength": 9,
          "minLength": 2
        },
        "maxItems": 12,
        "minItems": 2,
        "description": "EU member state codes, EU27_2020 or EA20."
      },
      "category": {
        "type": "string",
        "maxLength": 60,
        "minLength": 2,
        "description": "COICOP 2018 code or English keyword."
      }
    },
    "additionalProperties": false
  },
  "price_model": "per_call",
  "x402Version": 2,
  "instructions": "Sign the accepted terms with an x402 client and repeat the request with the payment header.",
  "payment_header": "PAYMENT-SIGNATURE",
  "capability_request": {
    "url": "https://bedarf.halowerk.com/capabilities/request",
    "cost": "free",
    "method": "POST",
    "description": "Missing a capability, or does the scope not fit? Report the need here - no payment required. Similar reports are bundled; the response returns an id you can check back on.",
    "body_example": {
      "max_price": 0.01,
      "description": "what exactly is needed",
      "requested_capability": "short label"
    }
  }
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.002USDC≈ $0.002 USD
on Base · exact scheme

Pay 0.002 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.

Paid to
0x2880…C4E5E
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
2000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "asset": "USDC",
      "version": "2",
      "eip712Domain": {
        "name": "USD Coin",
        "chainId": 8453,
        "version": "2",
        "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
      },
      "network_name": "Base Mainnet",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "geos": [
            "DE",
            "AT",
            "FR",
            "IT",
            "EU27_2020"
          ],
          "category": "CP011"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "category",
                "geos"
              ],
              "properties": {
                "geos": {
                  "type": "array",
                  "items": {
                    "type": "string",
                    "maxLength": 9,
                    "minLength": 2
                  },
                  "maxItems": 12,
                  "minItems": 2,
                  "description": "Reporting country with published data: EU, EFTA or official candidate; for example DE or AT."
                },
                "category": {
                  "type": "string",
                  "maxLength": 60,
                  "minLength": 2,
                  "description": "COICOP 2018 code or English keyword."
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-20 21:16Z
Last indexed by Roundhouse
2026-10-26 22:10Z
Last enriched (probe, favicon, geo)
2026-10-20 09:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service teuerung.halowerk.com and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=teuerung.halowerk.com'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://teuerung.halowerk.com/v1/food-inflation/compare, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.