* [ID-based RAG FastAPI v0.9.0](https://github.com/danny-avila/rag_api) – Integration of Langchain with FastAPI for document indexing and retrieval using PostgreSQL/pgvector.

* [Hoppscotch 2026.7.0](https://github.com/hoppscotch/hoppscotch) – Lightweight API development ecosystem with real-time request sending and customizable theming.

* [ServeRest v3.2.2](https://github.com/ServeRest/ServeRest) – REST API simulating an online store for learning manual and automated API testing.

* [NestHttpProblemDetails v1.9.0](https://github.com/Fcmam5/nest-problem-details) – NestJS HTTP exceptions filter that returns RFC 9457-compliant Problem Details JSON with application/problem+json, including optional Retry-After and Swagger support.

* [OKAPI v0.11.0-rc.2](https://github.com/jkaninda/okapi) – Minimalist Go web framework with OpenAPI 3 and Swagger UI, fast routing, automatic request binding, and built-in auth.