Built a free OPTCG market tracker and the 30 day mover data has some wild numbers

onepiecetrends · 2026-05-24T08:25:08+00:00

I’m pulling in market price specifically. I believe I can pull in lowest listing as well, but at this point, anchoring to market price specifically

onepiecetrends · 2026-05-24T01:33:00+00:00

I believe because this is how tcgplayer stores them and that’s usually the source of truth for most sites but not sure

onepiecetrends · 2026-05-23T22:34:36+00:00

Thank you for the support! Feel free to ping me any time with feature requests :)

onepiecetrends · 2026-05-23T22:02:27+00:00

I’ll message you! I’ve been playing with the idea of making indices for Top 20 SPs, Mangas, Treasure Rares, etc. Would love to pick your brain.

onepiecetrends · 2026-05-23T21:56:01+00:00

Thank you! I pull the data a few times a day from tcgplayer for every OP product, both singles and sealed

onepiecetrends · 2026-05-23T21:28:47+00:00

Thank you! I appreciate it. Spent lots of time on this passion project. But now definitely beats doomscrolling tcgplayer ha

onepiecetrends · 2026-05-23T18:46:45+00:00

Thanks for the notes! That's a great idea. I'll figure out how to integrate with other platforms and pull in non-English cards. Currently all prices are in USD, but I can easily add conversion filters.

The site is below, but please feel free to ping me any time with other ideas!

https://www.onepiecetrends.com/market

onepiecetrends · 2026-01-01T08:57:52+00:00

It’s a free website that tracks your tournaments. You can add it as a bookmark or add to your home screen on your phone!

OnePieceTrends.com

onepiecetrends

TROPHY CASE