[StackPilot] - a tiny tool that pings me before my n8n workflows quietly burn through my api budget

context: I run a few client automations in n8n. one of them got stuck in a loop and burned about $80 in api calls in a single day before anyone noticed, because the workflow was technically "succeeding" every run. none of the normal failure alerts would've caught that.

that annoyed me enough to build stackpilot over a weekend. you add one http step to the end of your workflow, set a cost limit, and it pings your slack the second a run goes over. it also does the boring stuff, catches failures and workflows that go quiet too.

it's live at stackpilot.io, free up to 3 monitors, no signup form, no credit card, just paste a url into your workflow and go.

honestly launched it yesterday and traction so far is pretty quiet. a couple people started setting it up but nobody's finished yet, not sure if that's a positioning thing or just needs more time. if you run n8n/make/zapier stuff and have 2 minutes, i'd genuinely love blunt feedback on whether this solves a real problem for you or if i'm overthinking a niche issue.