OpenTelemetry.Exporter.Prometheus.HttpListener 1.16.0-beta.1

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.6.2 This package targets .NET Framework 4.6.2. The package is compatible with this framework or higher.
This is a prerelease version of OpenTelemetry.Exporter.Prometheus.HttpListener. 
dotnet add package OpenTelemetry.Exporter.Prometheus.HttpListener --version 1.16.0-beta.1
                    


                    

                
NuGet\Install-Package OpenTelemetry.Exporter.Prometheus.HttpListener -Version 1.16.0-beta.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="OpenTelemetry.Exporter.Prometheus.HttpListener" Version="1.16.0-beta.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="OpenTelemetry.Exporter.Prometheus.HttpListener" Version="1.16.0-beta.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="OpenTelemetry.Exporter.Prometheus.HttpListener" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add OpenTelemetry.Exporter.Prometheus.HttpListener --version 1.16.0-beta.1
                    


                    

                
#r "nuget: OpenTelemetry.Exporter.Prometheus.HttpListener, 1.16.0-beta.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package OpenTelemetry.Exporter.Prometheus.HttpListener@1.16.0-beta.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=OpenTelemetry.Exporter.Prometheus.HttpListener&version=1.16.0-beta.1&prerelease
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=OpenTelemetry.Exporter.Prometheus.HttpListener&version=1.16.0-beta.1&prerelease
                    


                            Install as a Cake Tool

Prometheus Exporter HttpListener for OpenTelemetry .NET

NuGet NuGet

An OpenTelemetry Prometheus exporter that configures an HttpListener instance for Prometheus to scrape.

This component is intended for dev inner-loop, there is no plan to make it production ready. Production environments should consider using OpenTelemetry.Exporter.OpenTelemetryProtocol. Refer to the Getting Started with Prometheus and Grafana tutorial for more information.

The Prometheus scraping endpoint is not secured by default, so it is important to consider the security implications of exposing this endpoint in your application.

Refer to the Prometheus Security model and the HttpListener class documentation for more information and guidance on securing the Prometheus scraping endpoint to ensure only authorized users can access the information exposed by it.

Prerequisite

Installation

Step 1: Install Package

dotnet add package --prerelease OpenTelemetry.Exporter.Prometheus.HttpListener

Step 2: Add PrometheusHttpListener

var meterProvider = Sdk.CreateMeterProviderBuilder()
    .AddMeter(MyMeter.Name)
    .AddPrometheusHttpListener()
    .Build();

Configuration

You can configure the PrometheusHttpListener through PrometheusHttpListenerOptions and environment variables. The PrometheusHttpListenerOptions setters take precedence over the environment variables.

Configuration using Properties

  • Host: The host used by the Prometheus exporter (default localhost).
  • Port: The port used by the Prometheus exporter (default 9464).
  • ScrapeEndpointPath: Defines the Prometheus scrape endpoint path. (default "/metrics").
  • DisableTotalNameSuffixForCounters: Whether to disable the _total suffix for counter metrics (default false).
  • DisableTimestamp: Whether to disable the timestamp for metrics (default false).

Configuration using Dependency Injection

This exporter allows easy configuration of PrometheusHttpListenerOptions from the dependency injection container, when used in conjunction with OpenTelemetry.Extensions.Hosting.

For example:

var meterProvider = Sdk.CreateMeterProviderBuilder()
    .AddMeter(MyMeter.Name)
    .AddPrometheusHttpListener(options =>
    {
        options.Host = "localhost";
        options.Port = 9464;
    })
    .Build();

Configuration using Environment Variables

The following environment variables can be used to override the default values of the PrometheusHttpListenerOptions.

Environment variable PrometheusHttpListenerOptions property
OTEL_EXPORTER_PROMETHEUS_HOST Host
OTEL_EXPORTER_PROMETHEUS_PORT Port

ScrapeResponseCacheDurationMilliseconds

Configures scrape endpoint response caching. Multiple scrape requests within the cache duration time period will receive the same previously generated response. The default value is 300. Set to 0 to disable response caching.

Troubleshooting

This component uses an EventSource with the name "OpenTelemetry-Exporter-Prometheus" for its internal logging. Please refer to SDK troubleshooting for instructions on seeing these internal logs.

References

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (17)

Showing the top 5 NuGet packages that depend on OpenTelemetry.Exporter.Prometheus.HttpListener:

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Version Downloads Last Updated
1.16.0-beta.1 0 6/10/2026
1.15.3-beta.1 381,597 4/21/2026
1.15.2-beta.1 32,494 4/8/2026
1.15.1-beta.1 17,151 3/27/2026
1.15.0-beta.1 366,283 1/21/2026
1.14.0-beta.1 748,962 11/12/2025
1.13.1-beta.1 90,176 10/10/2025
1.13.0-beta.1 9,228 10/1/2025
1.12.0-beta.1 1,471,690 5/6/2025
1.11.2-beta.1 925,598 3/5/2025
1.11.0-beta.1 188,201 1/16/2025
1.10.0-beta.1 179,555 11/12/2024
1.9.0-beta.2 1,483,031 6/24/2024
1.9.0-beta.1 775,483 6/14/2024
1.9.0-alpha.2 83,359 5/29/2024
1.9.0-alpha.1 8,988 5/20/2024
1.8.0-rc.1 1,022,884 3/27/2024
1.8.0-beta.1 16,153 3/14/2024
1.7.0-rc.1 790,027 11/30/2023
1.7.0-alpha.1 16,605 10/17/2023
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For highlights and announcements see: https://github.com/open-telemetry/opentelemetry-dotnet/blob/coreunstable-1.16.0-beta.1/RELEASENOTES.md.

       For detailed changes see: https://github.com/open-telemetry/opentelemetry-dotnet/blob/coreunstable-1.16.0-beta.1/src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md.