The OSIsoft PI Web API reads the time-series values and asset model held in a PI System, so an application can pull sensor and process data and browse the assets it belongs to. It exposes PI points and streams whose recorded, interpolated, and current values can be read over a time range, and an asset framework of elements and attributes that can be searched and browsed. Event frames capture periods of interest such as a batch or a downtime, and calculation endpoints summarise values over a window. This page targets the public PI Web API sample server, which serves read-only demonstration data.
PI Web API exposes the OSIsoft (now AVEVA) PI System over REST, giving programmatic access to the historian, asset framework, analyses, event frames, batch records, and notifications stored across an industrial deployment. With 413 endpoints, it covers reading and writing time-series tags, navigating asset hierarchies, running search across element templates, and configuring security on every PI object. Operators in manufacturing, energy, and utilities use PI Web API to push real-time sensor data into analytics, MES, and digital twin pipelines.
Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fosisoft.com" | shStep 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fosisoft.com" | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
BOOK A DEMO
Browse thousands of APIs and connect them all to your agent with Jentic One. One layer, one credential — every API your agent needs.