# OpenTelemetry

> Start sending metrics, logs, and trace data from your applications using OpenTelemetry for a correlated single pane.

Source: https://last9.io/docs/integrations/observability/opentelemetry/

## Send data using OpenTelemetry

Last9 is fully [OpenTelemetry](https://opentelemetry.io/) compatible. OpenTelemetry is an open-source observability framework. It provides a standardized way to collect and export telemetry data — metrics, logs, and traces — from your applications and infrastructure.

If you are instrumenting code for the first time, we recommend using OpenTelemetry. You can either run OpenTelemetry Collector or send the telemetry directly from applications using the SDKs. Last9 supports both gRPC and HTTP endpoints for OpenTelemetry.

## Using OTel Collector

If your code is already instrumented using Prometheus, statsD, Influx, Jaeger, Zipkin, etc, please refer to [OpenTelemetry Collector documentation](/docs/integrations/observability/opentelemetry-collector/). OTel Collector supports sending metrics, logs, and trace data irrespective of source.

## Using OTel SDKs

## Obtain OTLP Endpoint & Credentials

1. Visit the [Integrations](https://app.last9.io/integrations/) page
2. Select [OpenTelemetry](https://app.last9.io/integrations?integration=OpenTelemetry)
3. Copy the Endpoint URL and the Authorization Header

![Obtain OTLP Credentials](../../../../../../assets/content/docs/integrations/observability/opentelemetry/otlp-creds-capture.png)

Last9's OTLP compatible endpoint formats are as follows:

    #### HTTP

    ```yaml
    https://otlp.last9.io #for US-EAST-1 region
    https://otlp-aps1.last9.io #for AP-SOUTH-1 region
    ```

    #### gRPC

    ```yaml
    otlp.last9.io:443 #for US-EAST-1 region
    otlp-aps1.last9.io:443 #for AP-SOUTH-1 region
    ```

:::note
The endpoints are region specific. Please refer to the [Integration](https://app.last9.io/integrations?integration=OpenTelemetry) page for your specific region.
:::

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## Troubleshooting

Please get in touch with us on [Discord](https://discord.com/invite/Q3p2EEucx9) or [Email](mailto:support@last9.io) if you have any questions.