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Campaign object guide
Fields, states and the launch contract.
v3 Tool Catalog
Every buyer tool and its inputs.
What used to be hard
Every seller spoke its own dialect: its own API, its own product names, its own way of quoting a price. A buyer who wanted CTV, audio and display across a dozen publishers needed a dozen integrations and a spreadsheet to reconcile them. Most of the effort went into plumbing rather than planning.What changes
AdCP gives every seller the same vocabulary for products, proposals and media buys. Semicola sits between the two sides as agent of record: it holds your advertisers and campaigns, knows which sellers you work with, sends one brief to all of them in parallel, and normalizes what comes back. Sellers that run a storefront agent answer with a composed, priced proposal in their own voice. Others answer with products from their catalog. You keep the decisions: which proposals to take, how to split the budget, and when to launch.The buying loop
1
Set up an advertiser
An advertiser is the brand you buy for. Semicola looks up the brand card (logo, colors, tone)
from its domain and records the primary currency, which locks after the first campaign. Use
save_advertiser, or ask Semi to “add Wrenfield Coffee Co.”.2
Write the brief as a draft campaign
A campaign starts as a
DRAFT with a brief, flight dates and a budget. The
draft is your cart: you can change it freely and nothing reaches a seller.3
Request proposals
request_proposals sends the brief to every eligible seller at once and returns immediately.
Proposals stream in over the next few seconds, each with products, suggested allocations and the
seller’s reasoning. Some sellers counter-pitch when they cannot meet part of the brief.4
Refine and select
Ask a seller to revise a proposal (
refine_proposal), then stage the ones you want with
save_media_buy. Staging books nothing and contacts no one.5
Attach creatives
Build creatives in the composer or upload finished files, then attach them. The campaign tracks
which required formats are covered and which are still missing.
6
Launch with a confirmation
Going live is two calls. The first returns a confirmation that summarizes spend per seller; the
second, made only after the person approves, dispatches one AdCP media buy per seller.
7
Watch delivery
Some sellers go live at once, others hold the buy for their own review. Delivery, pacing and
spend roll up per campaign, media buy and package in reporting and in
get_delivery.