# SuaveIO/suave

Suave is a simple web development F# library providing a lightweight web server and a set of combinators to manipulate route flow and task composition.

Repository: https://github.com/SuaveIO/suave
Canonical: https://ross.abutalabs.com/products/suave
Homepage: https://suave.io
Language: F#
License: NOASSERTION
License Family: other
Topics: webserver, fsharp, suave, dotnet, functional, async, http-server
Last push: 2026-08-26T17:54:37+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 99, longevity 100
- inputs: {"age_days": 5905, "days_push": 7, "days_rel": 7, "gap_med": 10.0, "n_releases_24m": 11}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1349, forks 197 (observed 2026-08-28T04:04:27.818093+00:00)

## What it is
Suave is a lightweight F# web server library with composable WebPart combinators for routing and request handling, targeting .NET 8/9. It supports HTTP/2, WebSockets, Server-Sent Events, HTTPS/TLS, rate limiting, and non-blocking I/O with low-allocation internals.

## Use cases
- build a REST API in F#
- embed a web server in an existing F# application
- serve WebSockets and REST from one port
- write a small microservice with a tiny footprint
- compose HTTP handlers functionally with >=> and choose
- serve static files with SPA fallback
- add HTTPS/TLS to an F# web app

## When to choose
- you're an F# developer who wants a lightweight, type-safe, composable web server
- you need HTTP/2, WebSockets, or SSE without a heavy framework
- you want to embed web server capabilities in your own application
- you value low-allocation, non-blocking I/O for steady latency under load

## When to avoid
- you need a batteries-included MVC framework with views, auth, and ORM out of the box
- your team works primarily in C# rather than F#
- you need a huge ecosystem of third-party middleware and plugins
- you require .NET Framework or older .NET runtime support

## Facets
- artifact type: library
- maturity: active
- function: http-server, web-framework, routing, websocket, middleware, rate-limiting, templating
- domain: web-development, backend, apis
- platform: dotnet, windows, cross-platform
- tags: fsharp, functional-programming, http2, server-sent-events, webparts, combinators, non-blocking-io, tls, linux, macos, docker

## Member repositories
- SuaveIO/suave (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:27.818093+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 2026-08-30T04:42:20.011669+00:00, confidence not recorded.
  - readme: https://github.com/SuaveIO/suave (fetched 2026-08-28T04:04:27.818093+00:00, sha 03b2f3f82a2f)
  - homepage: https://suave.io (fetched 2026-08-29T12:01:21.020966+00:00, sha aabf6a83c7cd)
  - site_page: https://suave.io/docs/faq.html (fetched 2026-08-29T12:01:21.033449+00:00, sha a931087610e0)
  - site_page: https://suave.io/docs/getting-started.html (fetched 2026-08-29T12:01:21.035999+00:00, sha 09648cbbc067)
- Data as of 2026-08-30T08:39:29.467469+00:00.