Official drinking-water file for an address or lat/lng (relocation / lodging due diligence

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xA3897b8E871569C1b619B0739d110a5B678EE2Fc",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "address": "2150 Shattuck Ave, Berkeley, CA"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "citations": [
            {
              "agency": "U.S. Environmental Protection Agency",
              "id": "echo-dfr",
              "name": "EPA ECHO detailed facility report (CA0110001)",
              "url": "https://echo.epa.gov/detailed-facility-report?fid=110001189632"
            }
          ],
          "compliance": {
            "currentViolation": false,
            "extractDate": null,
            "healthBasedViolation": false,
            "lastSanitarySurvey": "11/18/2025",
            "monitoringViolation": false,
            "seriousViolator": false,
            "trippedFlags": []
          },
          "data": {
            "coverage": "utility"
          },
          "decision": {
            "basedOn": "epa-sdwis-echo",
            "outcome": "clear",
            "reason": "EPA SDWIS/ECHO lists no health-based, current, monitoring/reporting, or serious-violator flags for this utility."
          },
          "evidence": {
            "ccr": "https://www.epa.gov/ccr",
            "echoDfr": "https://echo.epa.gov/detailed-facility-report?fid=110001189632",
            "sdwis": "https://sdwis.epa.gov/ords/sfdw_pub/r/sfdw/sdwis_fed_reports_public/200"
          },
          "limits": {
            "coverageNote": "Utility file is not a tap sample for this address.",
            "known": [
              "Utility-level EPA SDWIS/ECHO compliance flags"
            ],
            "unknown": [
              "Street-level lab panel",
              "Private wells (not in SDWIS)"
            ]
          },
          "next_actions": [
            {
              "action": "cite",
              "detail": "Link the ECHO DFR and CCR in your answer."
            },
            {
              "action": "note_limits",
              "detail": "Tell the user this is utility-file coverage, not a kitchen-tap lab result."
            }
          ],
          "place": {
            "city": "Berkeley",
            "country": "United States",
            "countryCode": "us",
            "displayName": "Berkeley, Alameda County, California, United States",
            "lat": 37.8708393,
            "lon": -122.272863
          },
          "summary": "EPA SDWIS/ECHO shows a clean compliance file for ALAMEDA COUNTY WATER DISTRICT (CA0110001). Last sanitary survey 11/18/2025. This is utility-level coverage, not a street lab panel.",
          "utility": {
            "name": "ALAMEDA COUNTY WATER DISTRICT",
            "populationServed": 344000,
            "pwsId": "CA0110001",
            "stateCode": "CA",
            "systemType": "Community water system"
          },
          "verdict": {
            "call": "hell-yes",
            "headline": "Clear EPA compliance file",
            "meetsLabel": "No health-based, current, or monitoring flags",
            "meetsStandards": "yes"
          },
          "via": "via Would Zini Drink It"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "description": "Provide address (GET also accepts q), or both lat and lng. lon is accepted as an alias for lng.",
              "oneOf": [
                {
                  "required": [
                    "address"
                  ]
                },
                {
                  "required": [
                    "q"
                  ]
                },
                {
                  "required": [
                    "lat",
                    "lng"
                  ]
                },
                {
                  "required": [
                    "lat",
                    "lon"
                  ]
                }
              ],
              "properties": {
                "address": {
                  "description": "Street address, city, or postal code. Required unless lat and lng are both set. GET also accepts q.",
                  "type": "string"
                },
                "lat": {
                  "description": "Latitude. Must be paired with lng (or lon).",
                  "type": "number"
                },
                "lng": {
                  "description": "Longitude. Must be paired with lat.",
                  "type": "number"
                },
                "lon": {
                  "description": "HTTP alias for lng.",
                  "type": "number"
                },
                "q": {
                  "description": "HTTP GET alias for address.",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://zini-x402.wouldzini.workers.dev/v1/lookup"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://zini-x402.wouldzini.workers.dev/v1/lookup");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://zini-x402.wouldzini.workers.dev/v1/lookup")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header