Is MarketApp P2P safe?

Clean risk

Adds Market.CSGO P2P trading tools to Steam trade offers and CS2 inventory pages.

This extension integrates with Steam to show profile and trade information, create or accept Market.CSGO-initiated trade offers, and add a custom interface on Steam trade offer pages. It enhances CS2 inventory pages with item details such as Float values and trade restrictions, plus quick-sell, instant-sell, and multiple-item sale tools for the Steam marketplace.

CRYSTAL FUTURE OÜFirefox Add-ons
0Risk
Who publishes it

CRYSTAL FUTURE OÜ - no other listings under this identity, 7 shared hostnames

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
CRYSTAL FUTURE OÜ

Shared hosts - 7 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

api.marketapp.online
Also called by 1 other listing: MarketApp P2P
dota2.net
Also called by 1 other listing: MarketApp P2P
market.dota2.net
Also called by 1 other listing: MarketApp P2P
cs2.fastcup.net
Also called by 3 other listings, including Fastcup Helper, Fastcup Enhancer
hasura.fastcup.net
Also called by 3 other listings, including MarketApp P2P, Fastcup Helper
support.steampowered.com
Also called by 3 other listings, including SIH
avatars.fastly.steamstatic.com
Also called by 4 other listings, including Steam Artwork Helper, ByNoGame Auto Trader

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Where it sends data

Destinations our analysis observed MarketApp P2P contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • steamcommunity.com

    MarketApp P2P sends data to steamcommunity.com. 13 other extensions we have analysed send data here.

  • api.steampowered.com

    MarketApp P2P sends data to api.steampowered.com. 4 other extensions we have analysed send data here.

  • api.marketapp.online

    MarketApp P2P sends data to api.marketapp.online. No other extension we have analysed sends data here.

  • market.csgo.com

    MarketApp P2P sends data to market.csgo.com. No other extension we have analysed sends data here.

Updated 15 October 2026amo-2829081