WaterPulse

Live 402 challenge

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

{
  "error": "X-PAYMENT header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://waterpulse.theaslangroupllc.com/api/water/aquifer",
      "description": "Aquifer system analysis for water and investor agents. Returns depletion rates, recharge capacity, agricultural dependency, regulatory outlook, and sustainability for Ogallala, Central Valley, Floridan, and 30+ US aquifers.",
      "maxAmountRequired": "150000",
      "maxTimeoutSeconds": 300
    }
  ],
  "x402Version": 1
}

Accepts

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

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc",
    "amount": "150000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
    },
    "payTo": "985iFjbnGQ3dJcwXnfRCMSrH4Jnc3kW1N6msR64B5KX1",
    "amount": "150000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "lang": "en | es | fr | de | ja | zh | ko | pt | ar (default: en)",
          "state": "Two-letter US state code for USGS data enrichment — e.g. KS | TX | CA",
          "aquifer": "Aquifer name — e.g. \"Ogallala\" | \"Central Valley\" | \"Floridan\" | \"Edwards\" | \"High Plains\""
        }
      },
      "output": {
        "type": "json",
        "example": {
          "query_summary": {
            "aquifer": "Ogallala",
            "also_known_as": "High Plains Aquifer",
            "states_overlying": [
              "SD",
              "WY",
              "NE",
              "CO",
              "KS",
              "OK",
              "NM",
              "TX"
            ]
          },
          "aquifer_profile": {
            "total_area_sq_mi": 174000,
            "estimated_volume_km3": 3608,
            "recharge_deficit_ratio": "43:1",
            "depletion_since_1950_pct": 9,
            "annual_depletion_rate_km3": 26,
            "recharge_rate_km3_per_year": 0.6
          },
          "depletion_hotspots": [
            {
              "state": "TX",
              "region": "Texas Panhandle",
              "depth_decline_ft_since_1950": 250,
              "years_remaining_at_current_rate": 28
            },
            {
              "state": "KS",
              "region": "Southwest Kansas",
              "depth_decline_ft_since_1950": 158,
              "years_remaining_at_current_rate": 45
            }
          ],
          "regulatory_outlook": "Kansas GMD5 mandating 20% reduction in withdrawals by 2040. Texas lacks comprehensive state groundwater regulation — rule of capture still dominant.",
          "sustainability_score": {
            "max": 100,
            "note": "Recharge deficit makes long-term depletion mathematically certain absent major conservation or managed recharge programs.",
            "score": 18,
            "rating": "Critical"
          },
          "agricultural_dependency": "30% of US groundwater used for irrigation comes from Ogallala. Supports $35B in annual crop production.",
          "investment_implications": "Ogallala-dependent farmland in TX panhandle faces 30-50% value haircut within 20 years as water availability declines."
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema"
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_gxy6qn5p"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "a": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "App builder code"
        },
        "s": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$"
          },
          "description": "Service builder codes"
        },
        "w": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "Wallet builder code"
        }
      },
      "additionalProperties": false
    }
  }
}

Provenance

Seen in the source catalog

2026-07-01 04:25Z

Last indexed by Roundhouse

2026-07-30 16:00Z

Last enriched (probe, favicon, geo)

2026-09-11 08:45Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402