SU
Developer Tool · x402 · early usage

Mean SoilGrids cation exchange capacity for the 0-5 cm layer

Mean SoilGrids cation exchange capacity for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Italy; results outside it are rejected before payment.

by suedland.halowerk.com · discovered, not yet claimed by its owner · updated 2026-09-03

30d calls1
30d payers1
MethodHTTP
Outputjson schema

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Mean SoilGrids cation exchange capacity for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Italy; results outside it are rejected before payment.

Tags: bazaar · payment-identifier

Call contract

Method
HTTP
Input
HTTP request
Output
json schema
Last paid call
2026-09-03
No input exampleProvider did not publish one in Bazaar metadata.
No output exampleProvider did not publish one in Bazaar metadata.

Use with an agent

  1. Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
  2. Inspect. Fetch /resources/11184.json for the price and payment options.
  3. Pay. Call GET https://suedland.halowerk.com/v1/it-soil-cec. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
  4. Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price
$0.001 / request
Protocol
x402 v2
Auth
No account or API key. Pay per request.
Networks
Base
Demand
1 calls · 1 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

SchemeNetworkAssetAmountPay toTimeout
exactBase
eip155:8453
USDC$0.0010x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E300s
accepts[] (raw JSON)
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "amountUsd": 0.001,
    "maxTimeoutSeconds": 300
  }
]

Schemas

Output schema (JSON Schema)
{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "latitude": 41.9028,
          "longitude": 12.4964
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "authoritative_status": "preliminary_non_binding",
          "category": "country",
          "caveats": [
            "Preliminary geodata assessment; not a legally binding property, cadastral, planning, environmental or title search.",
            "Raster resolution and model uncertainty can be larger than the submitted site geometry.",
            "Material decisions require a current verification by the competent national or regional authority."
          ],
          "charged": true,
          "checked_at": "2026-09-03T00:00:00.000Z",
          "confidence": 0.73,
          "confidence_method": "Conservative minimum source-family baseline plus a bounded sample-count bonus; multi-source results receive a fixed integration penalty.",
          "data_date": "2020-05-01T00:00:00.000Z",
          "evidence": {
            "soil-cec": {
              "method": "documented source raster sample",
              "metric": "soil-cec",
              "name": "Topsoil cation exchange capacity",
              "sample_count": 1,
              "unit": "cmolc_per_kg",
              "value": 1
            }
          },
          "evidence_classification": "derived_from_open_geodata",
          "facts": {
            "measurements": {
              "soil-cec": {
                "method": "documented source raster sample",
                "metric": "soil-cec",
                "name": "Topsoil cation exchange capacity",
                "sample_count": 1,
                "unit": "cmolc_per_kg",
                "value": 1
              }
            }
          },
          "generated_at": "2026-09-03T00:00:00.000Z",
          "geometry": null,
          "limitations": [
            "Preliminary geodata assessment; not a legally binding property, cadastral, planning, environmental or title search.",
            "Raster resolution and model uncertainty can be larger than the submitted site geometry.",
            "Material decisions require a current verification by the competent national or regional authority."
          ],
          "payment": {
            "price_usdc": 0.001,
            "settled": true
          },
          "recommended_next_steps": [
            "Verify material findings with current cadastral, planning and environmental records from the competent authority.",
            "Commission a qualified on-site survey where parcel-scale conditions affect the decision."
          ],
          "result": "measurement_available",
          "risk_level": "not_applicable",
          "service": "it-soil-cec",
          "service_id": "eli-0566",
          "sources": [
            {
              "access_documentation": "https://docs.isric.org/globaldata/soilgrids/wcs.html",
              "attribution": "SoilGrids data © ISRIC — World Soil Information, licensed under CC BY 4.0.",
              "authority": "ISRIC — World Soil Information",
              "cache_policy": "Fixed 0.25 degree WCS tiles cached locally; source TIFFs remain attributable CC BY data.",
              "caveats": [
                "Modelled predictions, not a site survey or laboratory result.",
                "WCS is used; the paused beta REST API is not used.",
                "Local variability below 250 m is not resolved."
              ],
              "commercial_use": true,
              "commercial_use_allowed": true,
              "coverage": "Global modelled soil predictions; valid cells are checked for each submitted geometry.",
              "data_date": "2020-05-01T00:00:00.000Z",
              "data_period": "SoilGrids 2.0 release vintage; not a live soil survey.",
              "dataset": "SoilGrids 2.0 WCS",
              "freshness": "Pinned SoilGrids 2.0 mean layers at 0-5 cm.",
              "id": "soilgrids-2-wcs",
              "license": "CC BY 4.0",
              "license_status": "verified",
              "license_verified_at": "2026-09-03",
              "name": "SoilGrids 2.0 WCS",
              "provider": "ISRIC — World Soil Information",
              "purpose": "Topsoil property estimates and derived USDA texture class.",
              "rate_limit": "QA and cache warming are throttled to at most one new WCS tile request per 12.5 seconds.",
              "redistribution": true,
              "resolution": "250 metres",
              "retrieved_at": "2026-09-03T00:00:00.000Z",
              "source_url": "https://maps.isric.org/",
              "terms_url": "https://docs.isric.org/globaldata/soilgrids/SoilGrids_faqs_04.html",
              "update_interval": "Provider model release based.",
              "url": "https://maps.isric.org/",
              "version": "SoilGrids 2.0 mean, 0-5 cm"
            }
          ],
          "status": "success",
          "summary": "Italy: Topsoil cation exchange capacity: source-backed screening evidence was calculated successfully."
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "additionalProperties": false,
              "properties": {
                "latitude": {
                  "description": "WGS84 latitude inside the published European coverage.",
                  "maximum": 72.5,
                  "minimum": 34,
                  "type": "number"
                },
                "longitude": {
                  "description": "WGS84 longitude inside the published European coverage.",
                  "maximum": 40.5,
                  "minimum": -31.5,
                  "type": "number"
                }
              },
              "required": [
                "longitude",
                "latitude"
              ],
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "additionalProperties": false,
              "properties": {
                "authoritative_status": {
                  "const": "preliminary_non_binding",
                  "type": "string"
                },
                "category": {
                  "const": "country",
                  "type": "string"
                },
                "caveats": {
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                },
                "charged": {
                  "type": "boolean"
                },
                "checked_at": {
                  "type": "string"
                },
                "confidence": {
                  "maximum": 1,
                  "minimum": 0,
                  "type": "number"
                },
                "confidence_method": {
                  "minLength": 20,
                  "type": "string"
                },
                "data_date": {
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "evidence": {
                  "additionalProperties": false,
                  "properties": {
                    "soil-cec": {
                      "additionalProperties": true,
                      "properties": {
                        "method": {
                          "type": "string"
                        },
                        "metric": {
                          "type": "string"
                        },
                        "name": {
                          "type": "string"
                        },
                        "sample_count": {
                          "minimum": 1,
                          "type": "integer"
                        },
                        "unit": {
                          "type": "string"
                        },
                        "value": {
                          "type": "number"
                        }
                      },
                      "required": [
                        "metric",
                        "name",
                        "unit",
                        "value",
                        "sample_count",
                        "method"
                      ],
                      "type": "object"
                    }
                  },
                  "required": [
                    "soil-cec"
                  ],
                  "type": "object"
                },
                "evidence_classification": {
                  "const": "derived_from_open_geodata",
                  "type": "string"
                },
                "facts": {
                  "type": "object"
                },
                "generated_at": {
                  "type": "string"
                },
                "geometry": {
                  "type": [
                    "object",
                    "null"
                  ]
                },
                "limitations": {
                  "items": {
                    "type": "string"
                  },
                  "minItems": 1,
                  "type": "array"
                },
                "meta": {
                  "type": "object"
                },
                "payment": {
                  "additionalProperties": true,
                  "required": [
                    "settled",
                    "price_usdc"
                  ],
                  "type": "object"
                },
                "recommended_next_steps": {
                  "items": {
                    "type": "string"
                  },
                  "minItems": 1,
                  "type": "array"
                },
                "result": {
                  "minLength": 1,
                  "type": "string"
                },
                "risk_level": {
                  "type": "string"
                },
                "service": {
                  "const": "it-soil-cec",
                  "type": "string"
                },
                "service_id": {
                  "const": "eli-0566",
                  "type": "string"
                },
                "sources": {
                  "items": {
                    "additionalProperties": true,
                    "properties": {
                      "authority": {
                        "type": "string"
                      },
                      "dataset": {
                        "type": "string"
                      },
                      "license": {
                        "type": "string"
                      },
                      "retrieved_at": {
                        "type": "string"
                      },
                      "url": {
                        "type": "string"
                      }
                    },
                    "required": [
                      "authority",
                      "dataset",
                      "url",
                      "license",
                      "retrieved_at"
                    ],
                    "type": "object"
                  },
                  "minItems": 1,
                  "type": "array"
                },
                "status": {
                  "enum": [
                    "success",
                    "no_finding",
                    "warning",
                    "high_risk",
                    "not_applicable",
                    "insufficient_coverage",
                    "source_temporarily_unavailable"
                  ],
                  "type": "string"
                },
                "summary": {
                  "minLength": 20,
                  "type": "string"
                }
              },
              "required": [
                "service_id",
                "service",
                "category",
                "status",
                "result",
                "summary",
                "facts",
                "geometry",
                "risk_level",
                "confidence",
                "confidence_method",
                "checked_at",
                "data_date",
                "evidence",
                "sources",
                "limitations",
                "recommended_next_steps",
                "evidence_classification",
                "authoritative_status",
                "generated_at",
                "caveats",
                "charged",
                "payment"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  },
  "payment-identifier": {
    "info": {
      "required": false
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "id": {
          "maxLength": 128,
          "minLength": 16,
          "pattern": "^[a-zA-Z0-9_-]+$",
          "type": "string"
        },
        "required": {
          "type": "boolean"
        }
      },
      "required": [
        "required"
      ],
      "type": "object"
    }
  }
}
Example shape — generated from the schema, not a captured live response
null

Examples

curl
curl -X GET 'https://suedland.halowerk.com/v1/it-soil-cec'
# -> 402 Payment Required; read PAYMENT-REQUIRED
# retry the identical request with PAYMENT-SIGNATURE
JavaScript
const res = await fetch("https://suedland.halowerk.com/v1/it-soil-cec", {
  "method": "GET"
});
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}
Python
import httpx
res = httpx.request("GET", "https://suedland.halowerk.com/v1/it-soil-cec")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider
suedland.halowerk.com
Endpoint
https://suedland.halowerk.com/v1/it-soil-cec
Machine-readable
/resources/11184.json