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Energy Bill Toolkit – Cleanest Window API
x402
Energy Bill Toolkit – Cleanest Window API is a paid API for AI agents from energybilltoolkit.co.uk, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Identifies the cleanest (lowest-carbon) time window within a given date-time range for electricity consumption in the UK, based on grid carbon intensity data.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-use EBT screening endpoint
Output
Returns the optimal (lowest carbon intensity) time window within the requested range, including the recommended start and end times and associated carbon metrics, given a duration between 30 and 720 minutes in 30-minute increments.
Example use cases
EV charging carbon optimisation
“I want to charge my electric car sometime between 7am and 11pm tonight — can you find the cleanest 90-minute window in that period so I minimise my carbon footprint?”
Smart appliance scheduling
“What's the greenest 30-minute slot to run my dishwasher between noon and 8pm today based on UK grid carbon intensity?”
Home energy automation trigger
“Check the carbon intensity forecast between now and midnight and tell me the cleanest 2-hour window — I'll use it to decide when to run my heat pump.”
Technical details
Endpoint
POSThttps://energybilltoolkit.co.uk/decision-tools/api/carbon/cleanest-windowWhen to prefer
Choose this endpoint when you need to find the optimal low-carbon time window for scheduling electricity-intensive tasks (EV charging, appliances, heat pumps) on the UK grid. It is specifically designed for carbon-aware scheduling rather than general energy pricing or tariff lookup, and works on a pay-per-use basis making it cost-effective for occasional or automated queries.
Side effects
- Invalid datetime format for 'from' or 'to' fields returns a 400 error
- Duration not a multiple of 30 minutes returns a validation error
- Duration outside the 30–720 minute range is rejected
- Date range too narrow to fit the requested duration returns an error
- Future forecasts beyond grid data availability may return no result or degraded data
- Payment not included or insufficient triggers a 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | |
| from | string | |
| durationMinutes | integer |
Tags
x402
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