> Markdown version of [/events/world-congress-2026-europe/sessions/1224-rest-api](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1224-rest-api). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Rest API Antipatterns - **Date:** Friday, Jul 10, 2026 - **Time:** 09:40–10:10 (30 min) - **Room:** Stage 7 - **Event:** World Congress 2026 Europe ## Recording [Watch recording](https://www.wearedevelopers.com/videos/100208-rest-api-antipatterns) ## Description Every API is a story of two developers, one who creates and one who consumes the API. There are API's that are very easy and intuitive for both of them. This talk is not about those API's. This is a talk about those other API's - where best intentions result with unusable and maintainable messes. We will take a look from both sides to analyze and hopefully avoid those pitfalls that await us. ## Speaker ### [Wekoslav Stefanovski](https://www.wearedevelopers.com/@wekoslav-stefanovski) Head Of Development at Sourcico ## Related talks at this congress - [An Opinionated Guide to Bulletproof APIs](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1209-an-opinionated-guide) — Rustam Mehmandarov - [How to mess up JWT's - a practitioner's guide](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1287-how-to-mess-up-jwt-s) — Wekoslav Stefanovski - [Building APIs for Agents vs Systems. Is MCP the answer?](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1322-building-apis-for) — Adam Bird - [REST, GraphQL, gRPC, and more: A comparison of modern API styles](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1278-rest-graphql-grpc) — Florian Bader