API

GET/api/<region>/standard-unit-rates/

Half-hourly prices for yesterday, today and tomorrow (as far as published), most recent first, in the standard Octopus/Kraken tariff-rates format used by home-automation tools such as predbat.

Example: /api/G/standard-unit-rates/

{
  "count": 140,
  "next": null,
  "previous": null,
  "results": [
    {
      "value_exc_vat": 21.34,
      "value_inc_vat": 21.34,
      "valid_from": "2026-10-27T00:00:00Z",
      "valid_to": "2026-10-27T00:30:00Z",
      "payment_method": null,
      "source": "Octopus"
    },
    ...
  ]
}

GET/api/<region>/rates/

Half-hourly prices in time order, for pulling into Excel or similar. With no parameters it returns today (UK local day). Add start and end for a date range.

Parameters

• start — start date, YYYY-MM-DD (optional)
• end — end date, YYYY-MM-DD (optional)
• local — set to 1 to get valid_from and valid_to as plain UK local time, with no UTC/BST conversion needed on your end. Leave it out for UTC (the default).

Examples

• /api/G/rates/ — today, UTC
• /api/G/rates/?local=1 — today, UK local time
• /api/G/rates/?start=2026-10-01&end=2026-10-15 — a date range, UTC

{
  "count": 48,
  "results": [
    {
      "valid_from": "2026-10-27T00:00:00Z",
      "valid_to": "2026-10-27T00:30:00Z",
      "value_exc_vat": 23.96,
      "value_inc_vat": 23.96,
      "source": "Octopus"
    },
    ...
  ]
}