Registration/Login

To register and login, you can use self-custodial Lightning wallet (Phoenix, Blixt, BlueWallet, Breez, …).

By scanning the QR code for the first time, your account will be created. Scanning the QR next time, with the same wallet, will log you in.

After registration we suggest to set your real email (like protonmail.com) for the communication purposes with buyers.

If you are serious about selling, provide a real phone number and email address (or mail alias) so that potential buyers can contact you.

New: You can provide your Signal link and potential buyer can contact you with Signal app and your phone number will be not revealed

How to create and share Username in Signal

We recommend to use email alias and link to your Signal username

Submit add/listing

Registered users can submit their products and/or services for free for 60 days. After this period your listing will expire.

You will be notified by e-mail about expiration and you can renew the listing in your dashboard.

When submitting new listing, please select appropriate ad type, category and subcategory. Select desired “Price type” and add your price in your currency. Euro is default currency on twentyone.market.

Please consider entering all texts in English, especially if you plan to sell outside your country. If it is necessary to use your native language, please do so at the end of the text of your offer

You can upload up to 8 images

A place on map can be selected but it’s not mandatory.
When selecting the place, wait for maps suggestions and select from list. Otherwise the marker will be placed in center of the world map.

If you are planning submit more listings, it’s recommended to set your location in your Profile. This way your location will be prefilled in every submission.

Communication

Buyer and seller can communicate in different ways.

Chat – The buyer can write to the seller via chat directly on the website. This communication is deleted after 30 days.
In case you are offline a mail notification will be sent to your mailbox.
(Chat is disabled. Use Signal)

E-mail message – buyer is able to sent you a mail message through our server (working mail address in your profile is needed)

Paid services

If you want to highlight your listing, you can do it in User’s dashboard (3 dots -> Promote) and select “Top” services for your listing.

At checkout, fill your name and e-mail and continue with payment through our BTCPay Server.

How many listings I can publish?

You can publish as many as you want

How many images can be submitted?

You can submit 8 images, each up to 5MB of size, with every listing,