Caterpillar's Cat Digital Marketplace now lists a NextGen version of its ISO 15143-3 (AEMP 2.0) API, which provides a time-series view of data from individual machines. It sits alongside the existing ISO 15143-3 API, which offers a snapshot view of a fleet or a single piece of equipment.
The catalog does not say when the NextGen API first became available, and its listings show recent update dates rather than a launch date.
Snapshots versus history
The difference matters to anyone building on Cat machine data. A snapshot answers where a machine is now and what its hour meter reads. Time-series data shows how those readings changed, which is what utilization analysis, idle tracking and fuel trend reporting depend on.
Caterpillar's documentation lists NextGen time-series endpoints for location, switch status, cumulative operating hours, cumulative idle hours, cumulative fuel used, engine condition and fuel remaining. The original API covers fleet and equipment snapshots plus a time series of fault codes. The documentation also sets usage limits: a shared quota of 50,000 requests per client ID per day, with the NextGen time-series endpoints throttled to 30 calls per second.
Why Caterpillar backs the standard
ISO 15143-3, the standard formerly known as AEMP 2.0, gives equipment owners one common format for machine data across manufacturers. In its API FAQ, Caterpillar says it chose the standard so customers and dealers would not have to consume a proprietary Caterpillar API or write custom code for their systems.
The intended uses it lists include keeping a historical record for bidding and utilization tracking, combining several brands into one fleet view, and using a third-party application "without having to purchase new hardware."
The fine print for integrators
The FAQ sets out several limits. The API only returns assets on a paid telematics subscription, not the free Cat Daily tier, and the data available depends on each machine's Product Link device and subscription level. New data appears about every five minutes when a machine reports.
Customers can request up to 24 months of historical data through Cat Digital Support, which takes three to seven business days. Access requires a subscription request and an onboarding call, which the customer must attend even when a third party handles the integration. Caterpillar does not provide integration services itself, and for richer data than the standard covers it points users to its own VisionLink API.
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