# SkyAPM/SkyAPM-dotnet

The .NET/.NET Core instrument agent for Apache SkyWalking

Repository: https://github.com/SkyAPM/SkyAPM-dotnet
Canonical: https://ross.abutalabs.com/products/skyapm-dotnet
Homepage: https://skyapm.github.io/SkyAPM-dotnet/
Language: C#
License: Apache-2.0
License Family: permissive
Topics: skywalking, csharp, dotnet, apm, distributed-tracing, observability, metric
Last push: 2026-08-01T23:50:20+00:00

## Health v2 (maintenance only)
Score: 83/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 95, release rhythm 58, longevity 100
- inputs: {"age_days": 3130, "days_push": 32, "days_rel": 66, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1658, forks 332 (observed 2026-08-28T04:05:18.237758+00:00)

## What it is
SkyAPM-dotnet is an open-source auto-instrumentation agent for .NET and ASP.NET Core applications that provides distributed tracing, service topology, and metrics. It reports telemetry to an Apache SkyWalking backend over the sw8/v8 protocol via gRPC or Kafka transports.

## Use cases
- add distributed tracing to ASP.NET Core apps
- monitor .NET microservices with SkyWalking
- visualize service topology across .NET services
- collect metrics from .NET applications
- trace requests across microservices
- instrument .NET apps without code changes

## When to choose
- you use Apache SkyWalking as your APM backend
- you need auto-instrumentation for ASP.NET Core or .NET hosts
- you want distributed tracing, topology, and metrics with minimal code changes

## When to avoid
- you use a different APM backend like Jaeger or Datadog
- you need OpenTelemetry-native instrumentation
- your runtime is not net8.0 or net10.0

## Facets
- artifact type: library
- maturity: active
- function: tracing, monitoring, middleware
- domain: monitoring, backend, developer-tools, microservices
- platform: dotnet, cross-platform
- tags: apm, observability, skywalking, auto-instrumentation, aspnetcore, distributed-tracing, metrics, docker, kubernetes

## Member repositories
- SkyAPM/SkyAPM-dotnet (main) score 83

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:18.237758+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:44:44.305960+00:00, confidence not recorded.
  - readme: https://github.com/SkyAPM/SkyAPM-dotnet (fetched 2026-08-28T04:05:18.237758+00:00, sha 74e1a4115905)
  - homepage: https://skyapm.github.io/SkyAPM-dotnet/ (fetched 2026-08-29T11:17:15.387550+00:00, sha 22149f758f07)
- Data as of 2026-08-30T08:39:29.467469+00:00.