# Proficy Plant Applications REST API

**Canonical:** https://apis.io/apis/ge-vernova/ge-vernova-proficy-plant-applications-rest-api/  
**Provider:** GE Vernova — https://apis.io/providers/ge-vernova/  
**Base URL:** https://{plant-applications-web-client-host}:5059  
**Documentation:** https://www.gevernova.com/software/documentation/proficy-plant-applications/version2025/pa_rest_api/c_rest_api_pa_introduction.html

Proficy Plant Applications 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 Manufacturing Execution Systems, Industrial, Work Orders, and ISA-95. The published artifact set on APIs.io includes an API reference.

The MES surface of Proficy Plant Applications, delivered as 37 documented microservices on port 5059 of the Web Client host — activities, work orders, process orders, routes, downtime, OEE and production metrics, non-conformance, e-signature, labor, waste, document management and ERP import/export among them. Each service publishes its own Swagger UI on the installation. ERP integration accepts and emits B2MML (ANSI-ISA-95) documents alongside JSON.

## Machine-readable artifacts (4)

- **APIReference** — https://www.gevernova.com/software/documentation/proficy-plant-applications/version2025/pa_rest_api/c_pa_rest_api_endpoints_documentation.html
- **Console** — https://www.gevernova.com/software/documentation/proficy-plant-applications/version2025/pa_rest_api/c_swagger_urls_of_rest_services_restapi.html
- **EventTypes** — https://www.gevernova.com/software/documentation/proficy-plant-applications/version2025/kafka/pa_webclient_Kafkaservices_topics.html
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/ge-vernova/refs/heads/main/errors/ge-vernova-error-codes.yml

## Other GE Vernova APIs (3)

- [Proficy Historian REST API](https://apis.io/apis/ge-vernova/ge-vernova-proficy-historian-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

Manufacturing Execution Systems, Industrial, Work Orders, ISA-95

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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-plant-applications-rest-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/ge-vernova/.