# Proficy Historian REST API

**Canonical:** https://apis.io/apis/ge-vernova/ge-vernova-proficy-historian-rest-api/  
**Provider:** GE Vernova — https://apis.io/providers/ge-vernova/  
**Base URL:** https://{historian-web-client-host}/historian-rest-api/v1  
**Documentation:** https://www.gevernova.com/software/documentation/historian/version2025/c_historian_apis_overview.html

Proficy Historian REST API is one of 4 APIs that [GE Vernova](https://apis.io/providers/ge-vernova/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Historian, Time Series, Industrial, and Energy. The published artifact set on APIs.io includes API documentation, an API reference, and authentication docs.

Manage Proficy Historian systems, collectors, collector instances, data stores, tags, the Historian model and alarms and events, and query time-series tag samples with a choice of sampling, calculation and filter modes. REST constrained by HATEOAS, JSON responses, OAuth2 bearer tokens issued by Proficy Authentication. Runs on the customer's own Historian web-based-client host; a Swagger UI is served from the same installation. No machine-readable contract is published by GE Vernova.

## Machine-readable artifacts (7)

- **Documentation** — https://www.gevernova.com/software/documentation/historian/version2025/index.html
- **APIReference** — https://www.gevernova.com/software/documentation/historian/version2025/c_historian_apis_overview.html
- **Authentication** — https://www.gevernova.com/software/documentation/historian/version2025/t_historian_swagger_documentation.html
- **Conventions** — https://www.gevernova.com/software/documentation/historian/version2025/c_standards.html
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/ge-vernova/refs/heads/main/errors/ge-vernova-error-codes.yml
- **Console** — https://www.gevernova.com/software/documentation/historian/version2025/t_historian_swagger_documentation.html
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/ge-vernova/refs/heads/main/apis.yml

## Other GE Vernova APIs (3)

- [Proficy Plant Applications REST API](https://apis.io/apis/ge-vernova/ge-vernova-proficy-plant-applications-rest-api/)
- [Proficy Operations Hub REST APIs](https://apis.io/apis/ge-vernova/ge-vernova-proficy-operations-hub-rest-api/)
- [APM Data Extraction OData API](https://apis.io/apis/ge-vernova/ge-vernova-apm-data-extraction-odata-api/)

## Tags

Historian, Time Series, Industrial, Energy

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/ge-vernova/ge-vernova-proficy-historian-rest-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/ge-vernova/.