# dotnet/yarp

A toolkit for developing high-performance HTTP reverse proxy applications.

Repository: https://github.com/dotnet/yarp
Canonical: https://ross.abutalabs.com/products/yarp
Homepage: https://yarp.dot.net
Language: C#
License: MIT
License Family: permissive
Last push: 2026-08-24T05:07:04+00:00

## Health v2 (maintenance only)
Score: 70/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 16, longevity 100
- inputs: {"age_days": 2372, "days_push": 9, "days_rel": 552, "gap_med": 177, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 9603, forks 933 (observed 2026-08-28T04:10:36.172325+00:00)

## What it is
YARP (Yet Another Reverse Proxy) is a .NET library and toolkit for building high-performance, customizable HTTP reverse proxy servers on ASP.NET. It supports config-file or programmatic configuration, load balancing, health checks, and protocols like HTTP/2, HTTP/3, gRPC, and WebSockets.

## Use cases
- build a reverse proxy in .NET
- route traffic to backend services with load balancing
- create an API gateway with custom routing rules
- proxy gRPC and WebSocket traffic
- customize proxy behavior programmatically
- front microservices with a configurable gateway

## When to choose
- you need a reverse proxy deeply customized in .NET code
- you want an API gateway integrated with ASP.NET middleware
- you need high-performance proxying with HTTP/2, HTTP/3, gRPC, or WebSockets support
- you want configuration driven by your own backend config system

## When to avoid
- you just need a simple static reverse proxy without custom code (nginx or Caddy may suffice)
- your stack is not .NET and you don't need programmatic customization
- you need a full-featured edge proxy with extensive plugin ecosystems out of the box

## Facets
- artifact type: library
- maturity: stable
- function: http-server, proxy, routing, middleware, load-testing
- domain: web-development, backend, networking, apis, microservices
- platform: dotnet, cross-platform, windows
- tags: reverse-proxy, aspnet-core, load-balancing, http2, http3, grpc, websockets, gateway, docker, linux, macos

## Member repositories
- dotnet/yarp (main) score 70

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:36.172325+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 2026-08-29T17:21:53.591483+00:00, confidence not recorded.
  - readme: https://github.com/dotnet/yarp (fetched 2026-08-28T04:10:36.172325+00:00, sha 6808e025cf9c)
  - homepage: https://yarp.dot.net (fetched 2026-08-29T08:21:22.112329+00:00, sha 3ce2f8d58831)
- Data as of 2026-08-30T08:39:29.467469+00:00.