How can you access the Dynatrace OneAgent metric API?

The Dynatrace OneAgent metric API can be accessed via the endpoint that begins with "localhost:14499/ingest/metric." This is the specific port designated for the OneAgent to handle metric ingestion, which is crucial for performance monitoring and data collection in an application.

When using the correct endpoint, it allows users to send custom metrics to Dynatrace for monitoring and troubleshooting. Users utilize this API to push data related to application performance, resource utilization, or any other custom metrics that help with insight into system behavior.

The other options, while they may appear to suggest valid endpoints, do not align with the defined architecture and API specifications of Dynatrace OneAgent. Each of those unused ports refers to different services or functions, making them inappropriate for metric ingestion tasks. Therefore, selecting the endpoint with port 14499 ensures the proper data flow into the Dynatrace environment for effective monitoring and analysis.