Frost Risk

{
  "asOf": "2026-10-11T20:20:02.999Z",
  "averageLastFrostThisYear": "2026-05-01",
  "belowThreshold": true,
  "dateIsDaysBeforeAverageLastFrost": 11,
  "degraded": false,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "freezeBand": "29-32 F",
  "freezeClass": "LIGHT_FREEZE",
  "hardiness": "tender",
  "lowC": -0.6,
  "lowF": 31,
  "notChecked": [
    "your microclimate: low spots, cold air drainage, nearby buildings, water and wind change the night's low by 5 F or more from the forecast",
    "the actual hardiness of the variety and stage (seedlings, blossoms and new growth are far more sensitive than mature leaves)",
    "…2 more"
  ],
  "protectionAdvice": "cover with frost cloth or sheets before sunset, water the soil, or bring containers inside",
  "reasons": [
    "light freeze (29 to 32 F, almanac convention).",
    "tender plants (tomato, pepper, basil, squash, cucumber, beans) are hurt by frost and killed by a freeze (typical examples; varieties differ).",
    "…1 more"
  ],
  "source": "computed locally",
  "springPosition": "BEFORE_AVERAGE_LAST_FROST",
  "summary": "A low of 31 F (-0.6 C) is light freeze (29 to 32 F, almanac convention). For tender plants: damage likely. 11 days before the average last frost (2026-05-01).",
  "typicalDamageThresholdF": 33,
  "verdict": "DAMAGE_LIKELY"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://garden-calc.x402tookit.com/frost-risk?averageLastFrost=2026-05-01&date=2026-04-20&hardiness=tender&lowTemp=31&unit=f'

# 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://garden-calc.x402tookit.com/frost-risk?averageLastFrost=2026-05-01&date=2026-04-20&hardiness=tender&lowTemp=31&unit=f' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fgarden-calc.x402tookit.com%2Ffrost-risk
const res = await pay("https://garden-calc.x402tookit.com/frost-risk?averageLastFrost=2026-05-01&date=2026-04-20&hardiness=tender&lowTemp=31&unit=f");
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://garden-calc.x402tookit.com/frost-risk?averageLastFrost=2026-05-01&date=2026-04-20&hardiness=tender&lowTemp=31&unit=f")
    print(res.status_code, res.text)