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How To Build an API with Python (LLM Integration, FastAPI, Ollama & More)

2025-02-21 Education
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Tech With Tim
Tech With Tim
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Description

AI models are powerful tools, and in order to use them securely, you need to control them using an API. I'm going to teach you how to write a very simple Python API to control access to a LLM or an AI model Download PyCharm and use it for free forever with one month of Pro included: https://www.jetbrains.com/pycharm/ Want to make real money with coding? I share high-signal insights on careers, monetization, and leverage in my free newsletter. Join here and get my guide How to Make Money With Coding instantly: https://techwithtim.net/newsletter 🎞 Video Resources 🎞 Code in this video: https://github.com/techwithtim/API-For-Your-LLM/tree/main Ollama Download: https://ollama.com/download Postman Download: https://www.postman.com/ FastAPI Auth Video: https://www.youtube.com/watch?v=5GxQ1rLTwaU Ollama Full Tutorial: https://www.youtube.com/watch?v=UtSSMs6ObqY ⏳ Timestamps ⏳ 00:00 | Why Do You Need an API? 02:29 | Setting Up Ollama (Free & Local) 04:15 | Environment Setup 07:05 | Writing a Simple FastAPI Endpoint 09:53 | Testing the API 12:35 | Securing the API 17:57 | Testing the Secured API 19:22 | Calling the API From Python Hashtags #howtousellmasapi, #python #hostingllm #llmapi #llm #api #pythonapi

Top Comments (10)

@TechWithTim 2025-02-19

Download PyCharm and use it for free forever with one month of Pro included: https://www.jetbrains.com/pycharm/

3 2 replies
@GrishmantM 2025-02-21

This is exactly the video I was looking for since I wanted to do an llm integration side project and voila there's a new video posted by Tim

10
@rocketrobin3393 2025-02-21

Very clear and simple to follow. Makes total sense of why the LLM access could/should be done with an API in the middle. Cost savings/controls. Thanks Tim.

5
@amentor-u7w 2025-07-12

love this approach I actually started doing the same with genum ai to wrap my models it’s so much safer and easier to scale when you build that API layer early

1
@henroljeogutierrez1294 2025-02-22

Another day, another good content by Tim! I've been your subscriber way back you only have only 3k+, I am not surprised you have now 1M+ subscribers! Kudos!

4
@TheMMAVOICE 2025-02-21

Excellent. Great pacing, clearly spoken and communicated. Thanks, Tim!

4
@wimgielis8802 2025-02-21

Well done, very clear (for someone with the expected level of background).

4
@Gloomess 2025-02-21

I love this kind of videos with longer explanations. Great one Tim

1
@youngzproduction7498 2025-10-18

This is new to me. Thanks so much, Tim.

1
@ibnalrefai 2026-01-07

Love it tim! my only issue with that is storing keys in a dict is a problem since it's still in memory, so for production needs it needs to be stored in a place with long term storage, I don't know if it "feels right" storing tokens in a db. but If you do have a neat solution, I'm happy to hear.

1

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