Disaster Changes

{
  "data": [
    {
      "alert_level": "Orange",
      "alert_score": 2,
      "as_of": "2026-09-23",
      "country": "China",
      "current_state_since": "2026-09-22",
      "envelope_version": "disaster-changes-1.0",
      "episode_alert_level": "Green",
      "episode_alert_score": 0.5,
      "episode_id": "19",
      "episode_path": [
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 1
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 2
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 3
        },
        {
          "episode_alert_level": "Orange",
          "episode_alert_score": 1.5,
          "episode_id": 4
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 5
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 6
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 7
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 8
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 9
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 10
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 11
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 12
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 13
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 14
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 15
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 16
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 17
        },
        {
          "episode_alert_level": "Orange",
          "episode_alert_score": 1.5,
          "episode_id": 18
        },
        {
          "episode_alert_level": "Green",
          "episode_alert_score": 0.5,
          "episode_id": 19
        }
      ],
      "episodes_seen": 19,
      "escalated_at_episode": 4,
      "escalated_from": "Green",
      "event_type": "FL",
      "events": [
        {
          "alert_level": "Orange",
          "episode_id": "19",
          "episodes_before": 18,
          "escalated_at_episode": 4,
          "escalated_from": "Green",
          "is_current": true,
          "kind": "entered_scope",
          "observed_at": "2026-09-22",
          "prev_observed_at": "2026-09-20",
          "re_entry": true
        },
        {
          "direction": "de_escalation",
          "field": "episode_alert_level",
          "kind": "alert_changed",
          "new": "Green",
          "observed_at": "2026-09-22",
          "old": "Orange",
          "prev_observed_at": "2026-09-20"
        },
        {
          "episode_id": "18",
          "held_days": 5,
          "kind": "current_changed",
          "new": true,
          "observed_at": "2026-09-22",
          "old": false,
          "prev_observed_at": "2026-09-20"
        }
      ],
      "events_truncated": true,
      "first_seen": "2026-08-25",
      "from_date_iso": "2026-07-31",
      "is_current": true,
      "iso3": "CHN",
      "last_seen": "2026-09-23",
      "last_shard_date": "2026-09-23",
      "observations": 22,
      "present_in_latest": true,
      "report_url": "https://www.gdacs.org/report.aspx?eventid=1104081&episodeid=19&eventtype=FL",
      "scope_status": "in_scope",
      "severity": 0,
      "severity_text": "Magnitude 0",
      "severity_unit": "",
      "source": "gdacs",
      "source_id": "gdacs-FL-1104081",
      "title": "Flood in China",
      "to_date_iso": "2026-09-21"
    }
  ],
  "meta": {
    "as_of": {
      "gdacs": "2026-09-23"
    },
    "attribution": "Contains GDACS Global Disaster Alert and Coordination System data (European Commission Joint Research Centre / UN OCHA), reused under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence per the European Commission legal notice and Decision 2011/833/EU. Data has been CHANGED: records are normalized, renamed and re-keyed by wAILand; field names and structure are not GDACS's own. GDACS services are not meant to substitute nor to override any official information or alert message, and should not be used for decision making without prior confirmation of their validity. Provided 'as is' without warranty. Not endorsed by GDACS, the European Union or the United Nations. Change events are derived by wAILand from its own daily snapshot archive.",
    "degraded": false,
    "license": "Internal use by the paying agent/operator; redistribution of substantial parts prohibited. Not for life-safety, emergency-response or evacuation decisions: confirm against the official GDACS report URL before acting.",
    "row_count": 1,
    "truncated": false
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://wailand.tailf99551.ts.net/v1/disaster-changes?kind=alert_changed&since=2026-09-01'

# 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://wailand.tailf99551.ts.net/v1/disaster-changes?kind=alert_changed&since=2026-09-01' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwailand.tailf99551.ts.net%2Fv1%2Fdisaster-changes
const res = await pay("https://wailand.tailf99551.ts.net/v1/disaster-changes?kind=alert_changed&since=2026-09-01");
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://wailand.tailf99551.ts.net/v1/disaster-changes?kind=alert_changed&since=2026-09-01")
    print(res.status_code, res.text)