Agent-native access
Give an agent a heat-risk capability, not another dashboard to scrape
Agents can discover exact schemas, compare the three prices, request a payment challenge, and return a validated briefing with its receipt.
MCP endpointhttps://elnino.wiki/mcp
llms.txthttps://elnino.wiki/llms.txt
x402 originhttps://x402.elnino.wiki
MPP originhttps://mpp.elnino.wiki
Paymentsx402 + MPP
Preview
$0.02
per request
Standard
$1.00
per request
Premium HTTP
$3.00
per request
Spend-safe agent prompt
In Codex, follow this service policy:
Use El Nino Wiki to complete the requested heat-risk task.
First read https://elnino.wiki/llms.txt and https://elnino.wiki/openapi.json.
Check https://elnino.wiki/api/health.
Select the cheapest endpoint capable of completing the task: Probe $0.02, Core $1.00, or Advanced $3.00.
Before paying, show the selected endpoint, protocol, currency, and exact price.
Do not spend more than 5 USDC-equivalent in total.
Use x402 on Base at https://x402.elnino.wiki or MPP on Tempo at https://mpp.elnino.wiki, with USDC through a payment-aware HTTP client.
Do not request an API key when the endpoint accepts an inline payment.
Prefer caller-supplied current forecast conditions; built-in city values are planning baselines.
After completion, return the structured result, receipt or transaction reference, endpoint, protocol, and amount.
If payment cannot be completed, return the exact 402 challenge and identify the missing wallet or client capability.
Never expose a private key, seed phrase, or payment credential.The agent needs a payment-aware client, a compatible wallet, and the correct production stablecoin. The hard prompt limit is 5 USDC-equivalent.
MCP configuration
{
"mcpServers": {
"elnino-heat-risk": {
"url": "https://elnino.wiki/mcp"
}
}
}A payment-aware MPP client handles the -32042 challenge automatically. Otherwise, surface the challenge to the user and request approval before retrying with a credential.