Kepware (PTC) Industrial Connectivity API
Kepware (PTC KEPServerEX) REST Configuration API for industrial connectivity and protocol gateway platform. Enables AI agents to manage OPC-UA and OPC-DA server configuration and tag management for industrial data access, handle channel and device configuration for protocol connectivity (Modbus, DNP3, EtherNet/IP, Siemens S7), access real-time tag value read/write for industrial data integration, retrieve diagnostic and connectivity status data for industrial network monitoring, manage IoT gateway configuration for cloud and MQTT data routing, handle event log and communication diagnostic data for troubleshooting, access tag browse and tag group management for OPC namespace organization, retrieve license and server status information for infrastructure management, manage redundancy and failover configuration for high-availability deployments, and integrate industrial device data with SCADA, historian, and IIoT platforms.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Industrial OPC connectivity. IEC62443. Basic auth. On-premise. Industrial control data.
⚡ Reliability
Best When
A manufacturer or utility using Kepware wants AI agents to automate OPC tag management, industrial device connectivity configuration, real-time data integration, and IT/OT data routing.
Avoid When
SAFETY RISK: Kepware writes to industrial device registers that control physical processes — automated tag write without safety validation and process engineer authorization causes equipment damage and safety incidents. OPC-UA server configuration changes that disconnect devices create gaps in safety monitoring. Industrial network configuration automation requires network engineer review.
Use Cases
- • Reading OPC-UA tag values from industrial data integration agents
- • Configuring device connections from industrial network automation agents
- • Monitoring connectivity status from OT network management agents
- • Routing industrial data to cloud from IIoT integration agents
Not For
- • Cloud-native IoT without industrial device connectivity and protocol translation
- • Consumer IoT without OPC-UA and industrial protocol requirements
- • Enterprise IT applications without industrial OT device connectivity
Interface
Authentication
Kepware uses basic authentication and API key for REST Configuration API. On-premise Windows-based installation. No cloud native — runs on Windows industrial server. REST Configuration API for server management. OPC-UA and OPC-DA protocols for real-time data. No webhooks — polling for data changes. Portland, Maine origin (acquired by PTC 2016). KEPServerEX is flagship product.
Pricing
Portland, Maine. Kepware founded 1995. Acquired by PTC (2016, $100M). Industrial connectivity market. KEPServerEX supports 150+ protocols (Modbus, DNP3, EtherNet/IP, Siemens S7, Allen-Bradley). On-premise Windows only. Strong in utilities, oil & gas, and manufacturing. Competes with Matrikon and Cogent DataHub for OPC connectivity.
Agent Metadata
Known Gotchas
- ⚠ SAFETY RISK: Kepware tag writes modify industrial device registers controlling physical processes; all automated writes require process engineer safety review and interlock validation
- ⚠ Windows-only on-premise — Kepware runs only on Windows Server; no cloud or Linux deployment; AI agent must have network access to Windows server running KEPServerEX
- ⚠ OPC-UA vs. REST Configuration API — OPC-UA is the real-time data protocol; REST API is for server configuration management; use OPC-UA client libraries for real-time data access
- ⚠ Driver licensing — each Kepware device driver (Modbus, EtherNet/IP, Siemens S7) requires separate license; verify driver license for your industrial device
- ⚠ Scan rate limitations — industrial device data scan rates are limited by device response time and Kepware polling configuration; real-time data latency is device-dependent
- ⚠ OPC-UA client requirement — real-time tag data requires OPC-UA client library (not REST); REST Configuration API only manages server configuration, not real-time data
Alternatives
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Scores are editorial opinions as of 2026-03-07.