Harvest Cost

{
  "bottom_line": "Local/organic can reach cost parity with conventional when waste reduction and quality are factored in.",
  "budget_optimization_strategy": "Buy the Dirty Dozen organic locally, save on the Clean Fifteen conventionally.",
  "cost_comparison": [
    {
      "conventional_grocery": "$3.50/lb",
      "csa_equivalent": "$3.00/lb (estimated)",
      "farmers_market_local": "$4.00/lb",
      "item": "Strawberries",
      "organic_grocery": "$5.50/lb",
      "verdict": "CSA or farmers market offers the best value for freshness and price."
    }
  ],
  "hidden_costs_of_cheap_food": [
    "environmental cost",
    "health externalities",
    "supply chain fragility"
  ],
  "hidden_value_of_local": [
    "freshness = less waste",
    "relationship with grower",
    "seasonal flavor peak"
  ],
  "items_compared": "strawberries tomatoes lettuce",
  "macro_context": "FRED CPI data shows food-at-home inflation trends relative to overall inflation.",
  "pulse_suggestions": [],
  "search_context": "Live search context on current prices and cost comparisons.",
  "waste_factor": "Fresher local produce lasts longer, reducing effective cost through less waste."
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://harvestpulse.theaslangroupllc.com/api/harvest/cost?items=space-separated+list+of+produce+items+to+compare+%28default%3A+strawberries+tomatoes+lettuce%29&lang=en+%7C+es+%7C+fr+%7C+de+%7C+pt+%7C+zh+%7C+ko+%28default%3A+en%29&location=city%2C+state%2C+or+country+for+pricing+context+%28default%3A+US%29'

# 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://harvestpulse.theaslangroupllc.com/api/harvest/cost?items=space-separated+list+of+produce+items+to+compare+%28default%3A+strawberries+tomatoes+lettuce%29&lang=en+%7C+es+%7C+fr+%7C+de+%7C+pt+%7C+zh+%7C+ko+%28default%3A+en%29&location=city%2C+state%2C+or+country+for+pricing+context+%28default%3A+US%29' \
  | 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 $0.1 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.1" });
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 $0.1 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fharvestpulse.theaslangroupllc.com%2Fapi%2Fharvest%2Fcost
const res = await pay("https://harvestpulse.theaslangroupllc.com/api/harvest/cost?items=space-separated+list+of+produce+items+to+compare+%28default%3A+strawberries+tomatoes+lettuce%29&lang=en+%7C+es+%7C+fr+%7C+de+%7C+pt+%7C+zh+%7C+ko+%28default%3A+en%29&location=city%2C+state%2C+or+country+for+pricing+context+%28default%3A+US%29");
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 $0.1 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.1"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://harvestpulse.theaslangroupllc.com/api/harvest/cost?items=space-separated+list+of+produce+items+to+compare+%28default%3A+strawberries+tomatoes+lettuce%29&lang=en+%7C+es+%7C+fr+%7C+de+%7C+pt+%7C+zh+%7C+ko+%28default%3A+en%29&location=city%2C+state%2C+or+country+for+pricing+context+%28default%3A+US%29")
    print(res.status_code, res.text)