# go-fuego/fuego

Golang Fuego - Web framework generating OpenAPI 3 spec from source code - Pluggable to existing Gin & Echo APIs

Repository: https://github.com/go-fuego/fuego
Canonical: https://ross.abutalabs.com/products/fuego
Homepage: https://go-fuego.dev/
Language: Go
License: MIT
License Family: permissive
Topics: golang, http-server, openapi, fuego, echo, gin-gonic, openapi3
Last push: 2026-08-24T20:18:03+00:00

## Health v2 (maintenance only)
Score: 74/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 40, longevity 75
- inputs: {"age_days": 1051, "days_push": 9, "days_rel": 574, "gap_med": 12.5, "n_releases_24m": 5}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1767, forks 127 (observed 2026-08-28T04:05:33.593211+00:00)

## What it is
Fuego is a production-ready Go web API framework that automatically generates OpenAPI 3 documentation from typed handler code using generics, built on top of net/http. It also supports HTML templating and can be plugged into existing Gin or Echo servers to add OpenAPI generation.

## Use cases
- generate openapi docs from go code
- build rest apis in go with automatic documentation
- add openapi spec to existing gin or echo server
- api framework with validation and error handling
- server-rendered html pages in go with templ
- centralized rfc 9457 error responses in go

## When to choose
- you want OpenAPI 3 specs generated from Go handler signatures instead of comments or YAML
- you want a modern net/http-compatible router with generics-based serialization and validation
- you need to retrofit OpenAPI docs onto an existing Gin or Echo API

## When to avoid
- you need a framework with a huge middleware ecosystem or non-Go runtimes
- your project targets Go versions older than 1.22
- you prefer spec-first (OpenAPI YAML) workflows rather than code-first

## Facets
- artifact type: framework
- maturity: active
- function: web-framework, api-framework, http-server, routing, serialization, middleware, templating, api-documentation
- domain: web-development, backend, apis, documentation
- platform: go, windows, cross-platform
- tags: openapi3, generics, net-http, gin-adapter, echo-adapter, rfc9457, validation, html-templating, linux, macos

## Member repositories
- go-fuego/fuego (main) score 74

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:33.593211+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 2026-08-30T03:26:24.579163+00:00, confidence not recorded.
  - readme: https://github.com/go-fuego/fuego (fetched 2026-08-28T04:05:33.593211+00:00, sha aaaaf2ec49c5)
  - homepage: https://go-fuego.dev/ (fetched 2026-08-29T11:04:46.630440+00:00, sha 3407e4061e7f)
  - site_page: https://go-fuego.dev/docs (fetched 2026-08-29T11:04:46.639908+00:00, sha 0e29f3924c96)
- Data as of 2026-08-30T08:39:29.467469+00:00.