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ReadyAPI LoadUI Agent 3.66.0 by SmartBear Software is a lightweight headless component that expands the capacity of ReadyAPI LoadUI by turning any Windows, macOS, or Linux machine into a load-generation endpoint. Installed on physical or virtual hardware in the cloud or on-premise, the Agent receives test scenarios from a central LoadUI controller and executes them in parallel, enabling teams to simulate thousands of concurrent users without consuming the controller’s own resources. The software is purpose-built for distributed performance testing of REST, SOAP, GraphQL, JMS, and JDBC endpoints, making it valuable for validating response times, throughput, and stability under realistic traffic patterns before production release. Typical use cases include elastic scale-out tests that spike from hundreds to tens of thousands of virtual users, geo-distributed tests that measure latency from multiple regions, and long-running soak tests that uncover memory leaks or resource exhaustion across server clusters. Because the Agent is version-locked to the controller, SmartBear maintains eight concurrent release lines—of which 3.66.0 is the current general-availability build—ensuring compatibility with both legacy and cutting-edge LoadUI projects. Configuration is limited to network ports, SSL certificates, and resource ceilings, so DevOps pipelines can spin up containerized Agents on demand via Docker or Kubernetes and tear them down once test metrics are collected. The program operates in the background as a Windows service or Unix daemon, exposing only the necessary interfaces for job distribution and real-time telemetry, thereby minimizing attack surface in secure environments. ReadyAPI LoadUI Agent is available for free on get.nero.com, with downloads provided via trusted Windows package sources such as winget, always delivering the latest version and supporting batch installation of multiple applications.
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