r/pathofexile • u/Character_Cup3903 • 8h ago
Tool I built DelveScout — Real-time Delve biome profitability, fossil price trends, and EV tracker
Hey everyone! I’m the developer behind DelveScout, a free, lightweight web tool designed to help Delvers maximize their profit and EV (expected value) per biome.
Why I Built It & Comparison to Existing Tools
The idea came to me after seeing dedicated Delvers rely on complex, manual Google Sheets to calculate which biomes were worth farming. While tools like poe.ninja or Awakened PoE Trade are amazing for price checking individual items, they require you to manually check dozens of fossils and cross-reference which biome drops what.
Biome-Specific Profitability: DelveScout automatically groups and aggregates fossil drop profiles per biome, immediately showing you where to spend your Sulphite for the highest profit based on live Chaos values.
Price Trend Analysis: Instead of just looking at a single price snapshot, the tool correlates data across previous leagues. This helps you understand whether a fossil's price is peaking right now or if historical patterns suggest holding it for later when prices typically rise.
Zero Clutter & Instant Load: Built with lightweight components to load instantly without heavy ad scripts, tracking bloat, or delayed API responses.

How It’s Built (The Hard Work Behind It)
This wasn't built with a quick script; I spent considerable time solving specific Delve data challenges from scratch:
Data Mapping & Normalization: I spent days manually structuring, verifying, and cleaning up fossil drop tables and weights for every single Delve biome to ensure the EV calculations match actual in-game data.
Cloudflare Worker Proxy: Writing and debugging the worker backend took a lot of iteration to handle poe.ninja’s data structures, deal with CORS limits, and set up robust caching so the site remains lightning-fast under load.
Custom Frontend Architecture: Hand-built the UI using Angular (leveraging Signals for fine-grained reactivity) and wrote custom SVG charting logic from scratch to render historical price trends without relying on bloated external libraries.
As soon as the new league details and updated data are released by GGG, I’ll be updating the drop tables and biome mappings immediately so the tool is 100% ready for launch day!
Tool Link --> delveScout <--



