Planting Dates

{
  "asOf": "2026-10-11T20:20:03.798Z",
  "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.",
  "earliest": "2027-03-20",
  "frostDate": "2027-05-01",
  "latest": "2027-05-15",
  "notChecked": [
    "the weeks themselves: they come from you or your seed packet (this calculator does not know when to plant a crop)",
    "the real frost date: the average is the median, so a frost after it happens in about half of years",
    "…2 more"
  ],
  "reasons": [
    "Each date is the frost date plus (weeks x 7) days; the list is sorted by date.",
    "Tender plants usually go out about one to two weeks after the average last frost; hardy crops can go in several weeks before it."
  ],
  "schedule": [
    {
      "date": "2027-03-20",
      "daysFromFrost": -42,
      "relation": "before the frost date",
      "task": "tomato seeds indoors",
      "weekday": "Saturday",
      "weeksFromFrost": -6
    },
    {
      "date": "2027-04-03",
      "daysFromFrost": -28,
      "relation": "before the frost date",
      "task": "lettuce seeds outdoors",
      "weekday": "Saturday",
      "weeksFromFrost": -4
    }
  ],
  "source": "computed locally",
  "spanDays": 56,
  "summary": "Frost date 2027-05-01: tomato seeds indoors 2027-03-20; lettuce seeds outdoors 2027-04-03; bean seeds 2027-05-08; tomato transplant 2027-05-15.",
  "verdict": "COMPUTED"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://garden-calc.x402tookit.com/planting-dates?frostDate=2027-05-01&tasks=tomato+seeds+indoors%3A-6%3B+lettuce+seeds+outdoors%3A-4%3B+tomato+transplant%3A2%3B+bean+seeds%3A1'

# 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/planting-dates?frostDate=2027-05-01&tasks=tomato+seeds+indoors%3A-6%3B+lettuce+seeds+outdoors%3A-4%3B+tomato+transplant%3A2%3B+bean+seeds%3A1' \
  | 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%2Fplanting-dates
const res = await pay("https://garden-calc.x402tookit.com/planting-dates?frostDate=2027-05-01&tasks=tomato+seeds+indoors%3A-6%3B+lettuce+seeds+outdoors%3A-4%3B+tomato+transplant%3A2%3B+bean+seeds%3A1");
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/planting-dates?frostDate=2027-05-01&tasks=tomato+seeds+indoors%3A-6%3B+lettuce+seeds+outdoors%3A-4%3B+tomato+transplant%3A2%3B+bean+seeds%3A1")
    print(res.status_code, res.text)