This documentation is provided as a reference for users who may wish to evaluate or explore OTLP Metrics as it’s being developed.

The OpenTelemetry project calls for an API and SDK to be available in languages that must emit data in the OpenTelemetry Protocol (OTLP). Lightstep Observability natively supports ingesting OTLP 0.5.0 or newer.

For more information on our OpenTelemetry metrics SDK support, please see our documentation on the OpenTelemetry Metrics Protocol.

This protocol and specification is still undergoing development. File any issues with the appropriate OpenTelemetry community.


  • OpenTelemetry SDK supporting OTLP 0.5+


You must have a Lightstep Observability access token for the project to report metrics to.


Configuration options vary per OpenTelemetry SDK, so please refer to the upstream documentation for your language. In general, you will need the following information:

  • Endpoint:
  • Secure: true
  • Headers: Use a key of lightstep-access-token with a value set to your project access token