Track the next Relay visit, arrival timer, departure window, and Ducat inventory.
Arrives in
Inventory appears when Baro arrives.
Baro Ki'Teer is headed to Larunda Relay (Mercury). The arrival timer above shows when the Void Trader opens his shop.
In-game, Baro appears in the Concourse area mid area of a Tenno Relay. You can also type "when baro" in Region or Relay chat if you want a chat bot to answer this question.
The inventory above lists the current Baro Ki'Teer rotation with their Ducat and Credit pricing. Use the filters for Mods, Weapons, Appearance, and Misc located on the top if you only want to view only certain items.
Always start with Primed Mods, then buy the weapons for mastery. Buy the cosmetics or collectibles after you have all the important items.
Baro arrives in any of the game relay every two weeks on Friday for a 48 hour visit. Ducat Kiosks in Relays show the next arrival timer before he appears, then switch to the departure timer while he is active.
Baro's Relay icon appears on the Star Chart around 24 hours before he arrives. Once he appears, every player gets an inbox message with the location.
Answers for common questions about Baro Ki'Teer.
The Hero section of this page has this exact info, where he is currently and when will he depart or arrive (depending on the day you're visiting this page).
Baro Ki'Teer arrives every two weeks on Friday and stays for around 48 hours. The rotation is always the same, goodies and locations change.
Baro sells a lot of stuff; Primed Mods, Prisma, Wraith and Vandal weapons, Baro specific cosmetics, decorations, boosters, beacons (stalker, zanuka etc), relics (Aklex), glyphs, and quest items like Sands of Inaros.
When you open void relics, you get prime parts, some of these prime parts that you don't need can be easily sold for ducats at any Ducat Kiosk in the relays. There is no limit on this, you can buy and sell as much as you want.
Yes, this is baked in the Warframe Chat. You can type "when baro" in Region or Relay chat and a bot will reply with the answer.
No, that's why keeping an eye on his inventory is important. His inventory changes every single visit, sometimes some weapons or cosmetics might take months to return. However, during TennoCon any ticket buyers can get full access to Baro's whole inventory with a special access pass.
Do the small prep before Baro leaves.
Confirm when Baro is arriving and prepare accordingly.
Set aside prime junk that you want to sell for ducats.
Always buy important mods first, then get limited weapons, and cosmetics last (remember that cosmetics are the real end-game).