University of Twente Energy API
The university's own API, and the only contract in this profile it wrote. A public, unauthenticated REST service on the university's own network (energyapi.utwente.nl, 130.89.3.170, ASP.NET Core / Kestrel) returning historical metered energy for 103 campus resources — individual buildings such as bastille and boortoren plus the campus-wide universiteit-twente roll-up — across electricity, gas, heat, water and solar, at hour, day, week, month or year resolution, back to at least 2019. Setting co2=true returns the series in kg CO2e against the Dutch national energy-mix emission factor. An OpenAPI 3.0.1 document and a Swagger UI are published at the host. Two contract defects were measured and are recorded in errors/: the spec declares RFC 7807 ProblemDetails on 400 but the service returns a bespoke {error, results} envelope, and GET /api/Dashboard is documented as 200 but returned 400 when probed. info.contact names Realised, the contracted developer, rather than the university.
University of Twente Energy API is one of 9 APIs that University of Twente publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
This API exposes 1 JSON Schema definition.
Tagged areas include Energy, Open Data, Sustainability, Campus, and Metering. The published artifact set on APIs.io includes an OpenAPI specification, an API reference, API documentation, authentication docs, and 1 JSON Schema.
This API exposes 3 operations across 3 paths, organized into 2 resource areas, and defines 9 schemas. It is described by OpenAPI 3.0.1, at version v1.
Requests are made against a single base URL, https://energyapi.utwente.nl.
Metadata
The identity and technical contract details declared by the specification.
Paths & Operations 3
Across 3 paths, the API surfaces 3 operations — 3 GET. They span 2 resource areas: Dashboard, Energy. Each is listed below with its method, path, parameters, and response codes.
Aggregate campus dashboard figures — year-over-year savings percentage and photovoltaic generation.
Historical metered consumption and generation per campus resource (building or campus-wide) and energy type.
Schemas 9
The contract defines 9 schemas that model the data the API accepts and returns. The most detailed are Saving (5 properties), ProblemDetails (5 properties), DataPoint (3 properties), Dashboard (3 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from University of Twente 8
Other APIs University of Twente publishes across the network.
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