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Semicola

Distinctlyyou.Everywhere.

Your agent buys through Semicola and keeps what sets your brand apart. The brief, the rules and your campaign history shape every next move.

Sign up hereSee how it works

Distinct from the brief to the live campaign.

Your intent and your rules travel with the plan, all the way into flight.

Every campaign adds context.

Each campaign files its brief, its decisions and its reported results into your history, so you and your authorized agents plan the next one with more to go on.

0% of media spend.

Semicola takes no share of your media. We earn from intelligence and completed work, never from a markup on your media.

Your agent

Work in Claude, ChatGPTor Semicola

Start in an AI app you already use, work in Semicola directly, or connect your own agent over MCP or API. Every route reaches the same sellers.

Work in Claude or ChatGPT

Connect Semicola once, then brief and buy from the chat your team already lives in.

Use the Semicola app

Our own buying workspace, with no agent to build or host.

Bring your own agent

Plug in an AdCP-compatible buying agent over MCP or API, and keep your own interface, logic and client experience.

Choose how to connectStart in chat, Semicola or your own agent

AI apps

Claude / ChatGPT

Semicola

App

Own agent

MCP / API

Claude or ChatGPTConnect Semicola in chatUse an AI app
SemicolaA dedicated buying workspaceUse ours
Your buying agentConnect over MCP or APIBring yours

Seller access

Send one brief to thesellers you choose

Ask one seller or many. Every proposal comes back in the same shape, terms included, ready to compare.

Compare seller proposals

Each proposal arrives in one structure, with the seller and its terms named, so you can line them up side by side.

Keep the proposal intact

Turn the proposal you pick into a draft media buy with its seller, products and terms carried across, without asking the seller twice.

One briefProducts and proposals togetherAdCP
Seller responseProductProposalTerms

Request

1 brief

Sellers

One or many

Next step

Draft buy

Your rules

You set the rules

Semicola keeps the right brand, account and rules attached while your agent works. You decide what it may do on its own and what needs your sign-off.

Keep each advertiser separate

Buying for several advertisers? Each keeps its own identity, connected accounts and activity trail.

Set the boundaries

Fix budgets, exclusions and approval rules before a campaign goes live.

Approve what matters

Your agent handles what it can. Anything outside the rules comes back to you.

Campaign rulesSet by you, applied by Semicola

Active advertiser

Wrenfield Coffee Co.

Approvals

On

AdvertiserWrenfield Coffee Co.
Connected accountClient-owned
BudgetWithin approved limit
Brand rulesApplied
ApprovalRequired above limit
Agent accessThis advertiser only

Campaign history

Compounding context

Semicola keeps each campaign’s brief, decisions and reported results. The record grows with every campaign, giving you and your authorized agents more to work from next time.

Your campaign historyReady for the next plan
Campaign resultsWhat worked

Added to

Campaign history

Available to you and authorized agents

Ready for the next campaignYour agent can plan from this historyUsed in planning

Your oversight

See what your agent did —and what it suggests

Review the actions your agent took, what changed and what it recommends next. Every call and change made through Semicola is on the record.

Agent activityActions, changes and suggestions Live
Proposal receivedLarkstone Media · terms attachedNew
Products requestedWrenfield Coffee Co. · chosen sellersComplete
Draft media buy createdWrenfield Coffee Co. · proposal attachedComplete
Move 10% to CTVSuggested from campaign resultsSuggested
Campaign reviewedParcel & Pine · approval requiredReview

From brief to campaign.

Add the brand and the brief, ask sellers, run the campaign, and fold its results into the campaign record.

  1. 1

    Choose how to connect

    Start in Claude, ChatGPT or Semicola, or connect your own agent.

    Buying agent

    Choose a route

    • Claude or ChatGPT
    • Semicola app
    • MCP or API
  2. 2

    Add the brand and brief

    Pick the advertiser and connected account, then write the brief.

    Brand identity

    Advertiser attached

    Campaign brief

    Goal · audience · budget

    Connected account

    Client-owned

  3. 3

    Ask sellers

    Your agent sends the brief to one seller or several and brings back their proposals.

    One brief

    Brief sent to one seller or several

    Seller responses

    Proposals back for comparison

  4. 4

    Review and run the campaign

    The proposal you choose becomes a draft media buy. Review where required, then launch.

    Campaign draft

    Review

    AdvertiserAttached

    ProposalAttached

    StatusDraft

  5. 5

    Add the results

    The campaign record holds the brief and the decisions. Reported results join it as they arrive.

    What the campaign taught you

    Campaign resultsBrand outcomes

    Campaign record updated

    Ready for what comes next

No cut of your media.Ever.

Connecting and placing buys is free. Optional intelligence is in beta, and its pricing is clear before you opt in. Enterprise support is priced with you. Whatever you choose, we take 0% of your media.

Explore pricing

Make every buydistinctly yours.

Keep your goals, rules and campaign history connected while you compare proposals and buy across sellers. Start in Claude or ChatGPT, use Semicola directly, or connect your own agent.

Sign up here