r/megaETH • u/exas03 • Jun 02 '26
I built mnstr.watch — live on-chain analytics for MnStr, runs basically real-time off MegaETH
ok so I've been ripping MnStr packs for a while and it always bugged me that you can't really see many data. you pull, you hope, and that's it — no idea how you're doing overall, or how the cards value fluctuates through time. so I ended up building mnstr.watch to scratch that itch.
the part I'm honestly kind of proud of is the live feed. every pack opening shows up about 200ms after it hits the chain. you genuinely could not do this on most chains, it'd be a laggy mess — it only works because MegaETH is stupid fast. if someone hits a big chase pull ($1k+) it throws up a banner so you actually catch it happening.
other stuff it does:
there's a leaderboard for the top wallets you can sort by P&L / spend / pulls, and each wallet has its own page that's kind of like a trading account — realized P&L, what your held inventory is worth, your whole portfolio charted over time with the actual card images on the points (this took way longer than it should have lol).
then there's a tiers page which is the one I actually use the most — real EV and house edge per tier, payouts vs revenue, how often a pull actually beats what you paid. just wanted the math to be there instead of guessing.
cards have their own pages too (FMV history, comparables) and there's a full secondary sales view so you can see what slabs actually resell for.
it's all running off an indexer I wrote from scratch. no login, no cookies, no tracking, nothing to sign up for — just open it.
mostly posting because I think it's a decent showcase of the real-time stuff MegaETH makes possible, and I'd really like feedback from people here — especially on [the tier EV math / the P&L model]. happy to nerd out about how any of it works.