Jev in production › Agent tool and action selection

Hearth

Browser agent built on Jev Ultrafast drives a local Chrome across Craigslist, Facebook Marketplace, Redfin and Zillow from one plain-language rental request, with Jev deciding each step, and returns one shortlist; it only reads pages.

Open on GitHub ↗

The source publishes no measured number.
Use
Agent tool and action selection
Industry
E-commerce and retail
Form
Open-source tool
Stage
Beta
Plugs into
Chrome
Listed
2026-09-22
Found via
github
Repository
Nancy-Chauhan/hearth-jev-rental-search
Stars
8
Forks
4
Last push
2026-09-21
Language
JavaScript
License
MIT

The README opens with

Hearth drives a real Chrome browser to search Craigslist, Facebook Marketplace, Redfin and Zillow from one plain-language request, and returns a single shortlist of matching rentals. You watch every click it makes as it goes.

It never messages a seller, saves a listing or starts a transaction. It only reads pages and reports what it found.

https://github.com/user-attachments/assets/ba58c178-1367-4e83-b77f-0f0476652ff1

- uv to run the app and install everything - Google Chrome. Hearth drives it, and voice search needs it - A TypeSafe API key. A search costs a fraction of a cent

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For the project's own README, linking back here:

Listed in Jev in production

Also used for agent tool and action selection