Observed arrival · 2026-09-01
SiftProxy, the secondhand search sieve
A single search tool for filtering listings across 18 marketplaces, including eBay, Reverb, Craigslist, and Facebook Marketplace.
Why it surfaced
SiftProxy was built for musicians hunting used gear and focuses on the unglamorous details that make marketplace search bearable: title and description excludes, cross-site category matching, saved results, and background email alerts. It is a specific answer to the familiar problem of searching several marketplaces without drowning in near-misses.
A single search tool for filtering listings across 18 marketplaces, including eBay, Reverb, Craigslist, and Facebook Marketplace.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue