SellFi
Decentralize your hustle in 30 seconds or less.
About
The problem it solves Listing something for sale online is still slow, clunky, and built for desktop-era workflows. On most marketplaces, sellers have to fumble through dozens of fields, upload images manually, and navigate poorly designed forms -> just to post a basic listing. Hopscotch’s listing agent flips that. It turns the listing process into a fast, friendly conversation -> so anyone can list an item for sale in under 30 seconds, right from their phone. It’s the fastest way to turn a photo into a deal.
How it's made
Challenges we ran into 1. Asynchronous, Multi-Step Conversations -> Users don’t submit listings in one go—they send an image, then add text, then react to confirm. 2. Image Upload & Transformation Pipeline -> You receive image data over XMTP, need to validate it, upload it to two different S3 buckets, and potentially sign it for temporary access. 3. AI Text Interpretation with Fallback -> Users may send vague or inconsistent text. The AI needs to parse price, description, inventory, etc., and the bot must fail gracefully when this breaks.