The Cost Ledger: How I Gave Every n8n Workflow Run a Price Tag
This story is from 2026-10-14. It is preserved in the archive; the latest stories are on the live feed.
Eleven workflows calling LLMs, one monthly API bill, and nothing in between. When a prompt change tripled my model spend overnight, I found out thirty days later -- from the invoice. So I built a cost ledger: every LLM call in every workflow logs its tokens and its dollar cost, and a daily query te…
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- 2026-10-14 21:40 · DEV Community — AI
The Cost Ledger: How I Gave Every n8n Workflow Run a Price Tag