OPC Unified Architecture (OPC-UA)

OPC-UA (IEC 62541) is the industrial interoperability standard for secure, reliable data exchange in industrial automation and IoT environments. It provides a platform-independent, service-oriented architecture for accessing real-time and historical data from PLCs, sensors, and SCADA systems. OPC-UA supports both client/server and pub/sub communication models.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/opc-ua"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑
aid: scada:opc-ua
name: OPC Unified Architecture (OPC-UA)
description: OPC-UA (IEC 62541) is the industrial interoperability standard for secure, reliable data
  exchange in industrial automation and IoT environments. It provides a platform-independent, service-oriented
  architecture for accessing real-time and historical data from PLCs, sensors, and SCADA systems. OPC-UA
  supports both client/server and pub/sub communication models.
humanURL: https://opcfoundation.org/about/opc-technologies/opc-ua/
tags:
- IEC 62541
- Industrial Interoperability
- OPC UA
- Real-Time Data
tags_raw:
- IEC 62541
- Industrial Interoperability
- OPC-UA
- Real-Time Data
properties:
- type: Documentation
  url: https://opcfoundation.org/about/opc-technologies/opc-ua/
- type: Specification
  url: https://reference.opcfoundation.org/Core/Part1/v105/docs/