FlexDoc is Prauga's open-source, self-hosted OpenAPI documentation renderer and API explorer. It ships one canonical browser renderer and thin ecosystem adapters so supported backends expose the same documentation, Try It, and API Client behavior.
No FlexDoc account, hosted dashboard, telemetry service, or runtime CDN is required.
- JavaScript/TypeScript: Express, Fastify, NestJS, Hono
- C#/.NET: ASP.NET Core
- JVM: Spring Boot, Jakarta/JAX-RS, Quarkus, Micronaut, Guice/Governator-style services, Kotlin Ktor
- Python: FastAPI/Starlette/ASGI, Flask/WSGI, Django
- PHP: generic PHP host, Laravel, Symfony
- Ruby: Rack, Rails
- Go:
net/http, Gin, Chi, Echo v5, Fiber v3 - Rust: Axum, Actix Web
- Elixir: Plug, Phoenix
The backend-coverage program shipped in 2.3.0. API Client development then continued through internal 2.4–2.7 milestones without publishing artificial intermediate FlexDoc package releases. The next coordinated product release is 2.8.0; see docs/api-client-roadmap.md for the milestone mapping and definition of done.
| Ecosystem | Package | Source version |
|---|---|---|
| npm | @prauga/flexdoc-client |
2.8.0 |
| npm | @prauga/flexdoc-backend |
2.8.0 |
| npm | @prauga/flexdoc-core |
0.3.0 |
| npm | @prauga/flexdoc-cli |
0.4.0 |
| NuGet | Prauga.FlexDoc.AspNetCore |
0.3.0 |
| Maven | com.prauga.flexdoc:flexdoc-jvm |
0.6.0 |
| Maven | com.prauga.flexdoc:flexdoc-jaxrs |
0.6.0 |
| Maven | com.prauga.flexdoc:flexdoc-spring-boot-starter |
0.6.0 |
| PyPI | prauga-flexdoc |
0.5.0 |
| Composer | prauga/flexdoc |
0.3.0 |
| RubyGems | prauga-flexdoc |
0.3.0 |
| crates.io | prauga-flexdoc-axum |
0.4.0 |
| crates.io | prauga-flexdoc-actix |
0.3.0 |
| Hex | prauga_flexdoc |
0.3.0 |
| Go | github.com/prauga/flexdoc/adapters/go |
0.4.0 |
Ecosystem package versions are intentionally independent. Renderer contract v1 is the cross-language compatibility boundary.
The package table reflects the versions encoded by the current source commit. Release-preparation commits update these source versions only when the matching release candidate is ready; source version numbers alone do not mean an artifact has been published.
canonical browser renderer
+-- Node backend -> Express / Fastify / NestJS / Hono
+-- ASP.NET Core
+-- JVM host -> Spring / Jakarta REST / Quarkus / Micronaut / Guice-Governator / Ktor
+-- Python host -> ASGI / WSGI / FastAPI / Flask / Django
+-- PHP host -> Laravel / Symfony
+-- Ruby host -> Rack -> Rails
+-- Go net/http -> Gin / Chi / Echo / Fiber v3
+-- Rust -> Axum / Actix Web
+-- Elixir Plug -> Phoenix
Adapters serve version-matched local renderer assets and do not reimplement schemas, request serialization, code samples, Try It, API Client behavior, navigation, or theming.
See examples/, docs/framework-coverage-roadmap.md, docs/api-client-roadmap.md, and docs/distribution.md.
FlexDoc is licensed under AGPL-3.0-or-later. See LICENSE.