FastAPI tutorials
Discover how to build, deploy and run FastAPI applications in production on Koyeb. The fastest way to deploy applications globally.


Minette Kaunismäki
Using Dia 1.6B to Build a Text-to-Speech Application on Serverless GPUs
Learn how to build a text-to-speech application using Dia 1.6B and deploy it on Koyeb Serverless GPUs.
Jul 09, 2025
14 min read


Nuno Bispo
Using PydanticAI to Build AI Agents for Data Analysis
Learn how build AI agents and intelligent data workflows using PydanticAI, FastAPI, and Koyeb.
Jun 30, 2025
22 min read


Nuno Bispo
Build a Video Processing Pipeline with AssemblyAI on Koyeb
Learn how to build a powerful video processing pipeline with AssemblyAI and deploy it to Koyeb
May 17, 2024
24 min read


Justin Ellingwood
Using LangServe to build REST APIs for LangChain Applications
Learn how to build and serve an API for LangChain applications with LangServe.
Feb 15, 2024
9 min read


Nuno Bispo
Use MistralAI, FastAPI, and FastUI to Build a Conversational AI Chatbot
This tutorial walks through how to build a chatbot powered by MistralAI, with FastAPI as the backend and FastUI as the front end.
Feb 07, 2024
18 min read