Caliper Analytics is the 1EdTech standard for describing learning events — a student viewing a resource, starting an assessment, submitting work, completing a module. It defines a metric profile vocabulary and a sensor API that emits events to a downstream analytics store.
Caliper Analytics
Caliper is a standardised event surface for education, which makes its adoption profile one of the more frustrating findings in this research. The specification exists, the vocabulary is settled, and the domain — terms, deadlines, cohorts, completions — is nothing but scheduled state change.
- Metric profiles - Typed event vocabularies per activity: assessment, media, reading, forum, tool use.
- A sensor API - A defined way for a platform to emit events rather than each vendor inventing a webhook shape.
- Actor, action, object - An event model close enough to xAPI to invite comparison, and different enough to fragment adoption.
- Downstream analytics - Designed to feed a learning record store rather than to be queried directly.
In The State of Education & EdTech APIs, event surface description sits at 10.8% of the market’s leaders — below the whole-catalog rate, in the sector that has a purpose-built event standard. Caliper is the strongest evidence in that report for a pattern the series keeps finding: a market can have exactly the specification it needs and still not publish against it, because nothing in its commercial model rewards doing so.
Referenced in API Evangelist papers
This standard shows up in my published research. These reports read the machine-readable evidence provider by provider — and put this standard in the context of a real sector.
The State of Education & EdTech APIs
A purpose-built learning-event standard, in a market describing an event surface at 10.8% of its leaders — below the whole-catalog rate.
