Data Sources

Where the Observatory's data comes from, how each source is treated, and what we deliberately exclude.

Active sources

Platform Country Category Integration Notes
Hispasonic Spain Instruments & accessories Daily crawler Spain's largest musician community marketplace. Full listing detail collected.
Noiz.gr Greece Instruments & accessories Daily crawler Leading Greek music gear marketplace.
Soundsmarket Spain / EU Instruments Daily crawler Aggregator with pan-European coverage.
Audiofanzine France / EU Instruments & accessories Daily crawler French music community with active classifieds section.
eBay EU (multi) Instruments Selected via API Only completed/sold listings used for pricing signals. Images are not displayed (eBay ToS); listing URLs link out to eBay directly.

Deliberately excluded platforms

Platform Reason for exclusion
Wallapop Terms of service prohibit automated data collection. No public API available.
Facebook Marketplace Requires authentication to browse; scraping violates Meta ToS.
Reverb US-centric pricing; ToS restricts bulk data extraction. May be added via official API in a future version.

Compliance principles

  • We only collect data from sources that allow crawling in their robots.txt or do not prohibit it in their ToS.
  • Crawls are rate-limited and run once per day to minimise load on source servers.
  • We store structured price signals (price, currency, condition, date) — not full listing text, personal seller data, or private contact details.
  • Images from platforms that block hotlinking are either served via server-side proxy or not displayed.
  • Any platform operator can request removal of their data via the Takedown page.
  • All published data is released under CC BY 4.0.

Questions or concerns? contact@intellisynthprices.com