How do you manage your site's SEO data?

Hey, y'all 👋
I'm working on a super-simple meditation timer and want to start SEO-ing.
Any tool to make my life easier when writing Open-Graph, meta-tags & such? Preferably, something with an API that I can use from my code and set things dynamically when needed.

Thanks much for the help!

Trending on Indie Hackers
After many failed product attempts I bootstrapped a file uploading service to 1K MRR in 6 months - AMA! 36 comments The world's fastest startups are working on just ONE metric... 21 comments Twitter 101 for Indie Hackers 13 comments Catching up to my main competitor Veed 9 comments I built an NFT Guide site. Feedback welcome! 5 comments Do you crosspost your articles on multiple platforms? 5 comments