API coverage

Infrastructure (implemented)

Capability	Status
REST HTTP transport	Implemented
REST pagination (next following)	Implemented
Typed exception hierarchy	Implemented
API-key HTTP Basic authentication	Implemented
Configurable base URL (default UK host)	Implemented
DateTimeOffset models; Europe/London default (OctopusEnergyTime)	Implemented
Tariff code parse/format (TariffCode)	Implemented
GSP group id mapping (GridSupplyPoint, GridSupplyPointParser)	Implemented
Tariff rates service (TariffRatesService; TariffCode.GetRelativeChargePath obsolete)	Implemented
Product catalogue lookup helpers (ProductDetail.TryGetTariff, ParsedTariffCode)	Implemented
Consumption meter-point overloads (ConsumptionService)	Implemented
Consumption–rate join helper (ConsumptionPricePeriodMatching; overlap/containment match)	Implemented

v1 resources

Area	Upstream	SDK
Products	REST /v1/products/	Implemented
Product / tariffs	REST /v1/products/{code}/	Implemented
Unit rates / standing charges	REST tariff charge URLs	Implemented (TariffRatesService)
Grid supply points	REST /v1/industry/grid-supply-points/	Implemented (IndustryService)
Electricity meter-point	REST /v1/electricity-meter-points/{mpan}/	Implemented (IndustryService)
Account	REST /v1/accounts/{number}/	Implemented
Consumption	REST electricity/gas consumption	Implemented (ConsumptionService)

How-to guides: consumption, tariff rates, industry lookups. See also getting started and units, VAT, and time.

v2 (planned)

GraphQL customer operations listed in SCOPE.md. None started.

Explicitly not covered

Partner quotes, account creation, data-import, and operations GraphQL. See customer vs partner.