Demand
Advertisers enter as bids.
Advertisers and demand-side platforms request a demand seat, then return prices against inventory they are permitted to buy. Reach is whatever connected supply will clear — not a promised universe.
Advertiser path →
Global marketplace / International scale
Where advertising demand meets publisher supply.
Sivora Exchange is a live advertising exchange. Advertisers bid. Publishers offer inventory. A real-time auction clears the trade.
New York London Singapore Dubai Tokyo · Labels of geography, not operational markets
Global Exchange
Demand meets supply in one venue.
The marketplace sits between advertising demand and publisher supply. It does not buy media for a client and it does not sell a seat as software. It clears a trade.
Demand Advertisers bid Eligible demand returns a price against an impression. Exchange The market clears Sivora matches those bids to offered publisher supply. Publisher supply Inventory is offered Publishers and SSPs present inventory under seller rules.
- New York
- London
- Singapore
- Dubai
- Tokyo
Supply
Publishers enter as inventory.
Publishers and supply-side platforms offer impressions under floors, blocks, and disclosure they control. A cleared impression continues toward the audience on that inventory.
Publisher path →Auction
Bid. Seat. Clear.
Each impression is treated as a ticket: who may bid, which seat is trading, and how the auction settles. The photograph is a still-life, not a live tape.
Bid
Demand enters
Advertisers and demand-side platforms return a price against an impression-level request, inside the stated window.
Seat
Who may trade
A demand seat or a supply seat is reviewed onto the exchange. Eligibility is applied before the auction compares bids.
Clear
The auction settles
Eligible bids are compared. A result returns to both sides. The impression path continues toward the publisher’s audience.
Formats
The objects a desk may offer or buy.
Formats appear when supply discloses them and demand is willing to bid. This is a vocabulary, not a catalogue of guaranteed inventory.
Display
Still frames
Banners and page units offered with size, placement, and seller controls.
Video
Motion units
In-stream and accompanying video where the supply object describes the player.
Native
In-feed units
Assets assembled to the grammar of the page or app that offered them.
CTV
Living-room inventory
Connected-television impressions when a seller discloses that environment.
Technology
Protocol, matching, and desk records.
The stack is organized around an open bid protocol, a matching method, and reporting scoped to the participant’s own seat. Response windows are finite. This site does not claim to be the fastest venue in the market.
OpenRTB
Bid request and response objects as the contract with connected desks.
Auction
Eligibility, timeout, and the method in force for that impression.
Reporting
Outcomes for the participant’s desk — not a public tape of the market.
Partner with Sivora
Partner with Sivora
Request a review of a demand seat, a supply seat, or a technology integration. Access is granted after a participation check — it is not automatic.
Join the ExchangeFAQ
Questions of record
01 What is Sivora Exchange?
Sivora Exchange is a global advertising exchange. Advertisers and demand partners bid into a real-time auction; publishers and supply partners offer inventory; a cleared impression continues toward the publisher’s audience.
02 How does a trade clear?
Supply presents an available impression. Eligible demand returns bids. The exchange runs the auction method in force and returns the result to both sides. When a bid wins, the creative path proceeds toward the audience.
03 Who may join the exchange?
Advertisers, demand-side platforms, publishers, and supply-side platforms may request a seat. Technology partners that integrate with the bid protocol may also apply. Access is granted after review.
04 Which protocol does the marketplace use?
The marketplace is designed around OpenRTB bid request and response objects. Interface details are provided to accepted participants.
05 How do we request access?
Use the request-access form. State participant type, a business contact, and a short note on intended use. If the form endpoint is not configured, email hello@sivoraexchange.com.