Discover / home-energy-calc.x402tookit.com

Home Energy Calculators

■ Challenge detected

Estimate a monthly electricity bill from kWh with block-tier rates, a fixed monthly charge and a tax or fee percentage.

Listed price
$0.02
Challenge detected
1 of the last check
Median response
200 ms
Last checked
21 Oct, 00:26 UTC
In our index since
21 Oct 2026

Endpoint

curl -i https://home-energy-calc.x402tookit.com/bill-estimate
# 402 Payment Required: pay with an x402 client (USDC on Arbitrum),
# then send the same request again with the payment attached.
9 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://home-energy-calc.x402tookit.com

  • GET/ev-chargingNo price listedElectric vehicle charging time, cost and range added from battery size, charge levels, charger power or circuit, and price.
  • GET/bill-estimateNo price listedEstimate a monthly electricity bill from kWh with block-tier rates, a fixed monthly charge and a tax or fee percentage.
  • GET/hvac-sizingNo price listedRoom air-conditioner BTU from floor area (ENERGY STAR chart), tons, and an under- or over-sizing check against a load.
  • GET/household-loadNo price listedTotal a list of appliances (watts, hours a day, quantity) into kWh and cost per day, month and year, with each one's share.
  • GET/heat-lossNo price listedHeat loss of a building in BTU/h and watts from surface areas and R-values plus air leakage, and yearly energy from degree-days.
  • GET/water-heaterNo price listedWater heater recovery rate (gallons an hour), tank heat-up time and energy cost from input power, efficiency and rise.
  • GET/insulation-r-valueNo price listedR-value and U-factor of a wall or roof assembly from layers and thickness, with a framing-fraction correction and heat flow.
  • GET/solar-sizingNo price listedSize a rooftop solar system from annual kWh and peak sun hours: kW, panel count, yearly output, savings and simple payback.
  • GET/heating-cost-compareNo price listedCost per million BTU of delivered heat for resistance, heat pump, gas, propane and heating oil furnaces, from your prices.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 9 of 9 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/home-energy-calc.x402tookit.com

Recent checks

21 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.21 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
21 Oct, 00:26 UTCChallenge detected402200ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 21 Oct, 00:26 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Home Energy Calculators?

Its listed price is $0.02.

What payment terms does Home Energy Calculators advertise?

The listing advertises x402, Arbitrum, Base, Polygon, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Home Energy Calculators listed?

In x402 Bazaar. Superstables first indexed it on 21 Oct 2026.

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