Water Aquifer

{
  "agricultural_dependency": "30% of US groundwater used for irrigation comes from Ogallala. Supports $35B in annual crop production.",
  "aquifer_profile": {
    "annual_depletion_rate_km3": 26,
    "depletion_since_1950_pct": 9,
    "estimated_volume_km3": 3608,
    "recharge_deficit_ratio": "43:1",
    "recharge_rate_km3_per_year": 0.6,
    "total_area_sq_mi": 174000
  },
  "depletion_hotspots": [
    {
      "depth_decline_ft_since_1950": 250,
      "region": "Texas Panhandle",
      "state": "TX",
      "years_remaining_at_current_rate": 28
    },
    {
      "depth_decline_ft_since_1950": 158,
      "region": "Southwest Kansas",
      "state": "KS",
      "years_remaining_at_current_rate": 45
    }
  ],
  "investment_implications": "Ogallala-dependent farmland in TX panhandle faces 30-50% value haircut within 20 years as water availability declines.",
  "query_summary": {
    "also_known_as": "High Plains Aquifer",
    "aquifer": "Ogallala",
    "states_overlying": [
      "SD",
      "WY",
      "NE",
      "CO",
      "KS",
      "OK",
      "NM",
      "TX"
    ]
  },
  "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.",
    "rating": "Critical",
    "score": 18
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://waterpulse.theaslangroupllc.com/api/water/aquifer?aquifer=Ogallala&lang=en&state=KS'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://waterpulse.theaslangroupllc.com/api/water/aquifer?aquifer=Ogallala&lang=en&state=KS' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.15 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.15" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.15 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwaterpulse.theaslangroupllc.com%2Fapi%2Fwater%2Faquifer
const res = await pay("https://waterpulse.theaslangroupllc.com/api/water/aquifer?aquifer=Ogallala&lang=en&state=KS");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.15 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.15"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://waterpulse.theaslangroupllc.com/api/water/aquifer?aquifer=Ogallala&lang=en&state=KS")
    print(res.status_code, res.text)