Time Blocks

{
  "asOf": "2026-10-12T01:41:14.410Z",
  "blockCount": 3,
  "blockMinutes": 50,
  "blocks": [
    {
      "block": 1,
      "end": "9:50 AM",
      "endDayOffset": 0,
      "start": "9:00 AM",
      "startDayOffset": 0
    },
    {
      "block": 2,
      "end": "10:50 AM",
      "endDayOffset": 0,
      "start": "10:00 AM",
      "startDayOffset": 0
    }
  ],
  "breakMinutes": 10,
  "breakMinutesTotal": 20,
  "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.",
  "focusMinutesTotal": 150,
  "leftoverMinutes": 10,
  "notChecked": [
    "fixed meetings or meals inside the window",
    "whether the blocks suit the task (this is arithmetic, not a productivity study)",
    "…1 more"
  ],
  "reasons": [
    "Breaks sit between blocks only, never after the last block.",
    "A window end at or before the start is read as ending on the next day."
  ],
  "source": "computed locally (whole blocks that fit, breaks only between blocks)",
  "summary": "3 block(s) of 50 min with 10 min breaks fit in 180 min; 10 min left over.",
  "verdict": "COMPUTED",
  "windowMinutes": 180
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://focus-sleep-calc.x402tookit.com/time-blocks?blockMinutes=50&breakMinutes=10&windowEnd=12%3A00+PM&windowStart=9%3A00+AM'

# 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://focus-sleep-calc.x402tookit.com/time-blocks?blockMinutes=50&breakMinutes=10&windowEnd=12%3A00+PM&windowStart=9%3A00+AM' \
  | 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%2Ffocus-sleep-calc.x402tookit.com%2Ftime-blocks
const res = await pay("https://focus-sleep-calc.x402tookit.com/time-blocks?blockMinutes=50&breakMinutes=10&windowEnd=12%3A00+PM&windowStart=9%3A00+AM");
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://focus-sleep-calc.x402tookit.com/time-blocks?blockMinutes=50&breakMinutes=10&windowEnd=12%3A00+PM&windowStart=9%3A00+AM")
    print(res.status_code, res.text)