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More clients, same team. Agents do the rest.

Ad checks, client reports, copy, onboarding and invoices, done every day for every account. Your agents work from one brain that knows each client, so your people keep the strategy and the relationships.

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NorthwindAds · SEO · reports Bluebird CoAds · social Halcyon FoodsNew client
Meta Ads manager · Bluebird Co · 8:12

Two new variations of the spring ad are ready. They keep the hook that's working. Launch them at the current budget?

Live. I'll report back on Friday.
NW
NorthwindWeekly report drafted from Meta, Google Ads and GA4
HF
Halcyon FoodsKickoff booked, Drive folder and Asana project created

Where your agency's week really goes.

Not into strategy or creative. Into checking, reporting and chasing, for every single client. Switch the week to see who does it with Brainstack.

Sample week, 1 account manager
21 hours a weekAbout 2 hours of review
Done by your teamDone by an agent, you review

A day in your agency.

While your team is in client calls and creative reviews, the accounts keep moving.

Meta Ads manager

Checks 14 ad accounts and pauses 2 ads that passed their cost limit overnight.

Client reporting

Northwind's weekly report is ready, with Meta, Google Ads and GA4 in one page.

Needs your yes
Copywriter

Writes 12 hooks for Halcyon Foods from the brief in Notion.

Community manager

Answers 18 comments across three client pages, each in its own voice.

Client onboarding

Books Halcyon Foods' kickoff, creates their Drive folder and Asana project.

Billing and collections

Matches 6 retainer payments and sends a second reminder for the one that's late.

Blog and SEO writer

Northwind's next post is drafted in WordPress, built on last month's top queries.

Needs your yes
Brain

Brings 9 client files up to date, every fact linked to its source.

Every client gets its own brain.

Briefs, calls, approvals and results live in one file per client, each fact with its source. Agents read it before they touch an account, and each client space has its own list of who can see it.

NorthwindActive
Retainer since March · Ads, SEO, reports
  • Monthly ad budget capped at $8,000; anything above needs Sara's OK.Email, Sep 2
  • Tone: no puns, always "you", British spelling.Brand guide
MOJA2 people can see this space
Bluebird CoWaiting for you
Retainer since June · Ads, social
  • Spring campaign: hook "ready in 5 minutes" beats the rest by a wide margin.Meta Ads
  • Open: they asked for a TikTok test in November.Call notes, Oct 8
MOLEFR3 people, 1 freelancer
Halcyon FoodsOnboarding
Signed Oct 14 · Ads, copy
  • Goal: 400 first orders by December from paid social.Brief
  • Still missing: access to their ad account.Onboarding checklist
MOJA2 people can see this space

Works inside your agency's stack.

No new tool for your team to learn. Agents log into what you already pay for and leave the work where you expect it.

Meta Ads

Reads campaigns, budgets and results by ad and audience.

Google Ads

Reads campaign, keyword and conversion performance.

Google Analytics

Pulls each client's GA4 reports into the weekly summary.

Search Console

Reads queries, pages and indexing to plan the next post.

Notion

Reads briefs and writes status pages for every account.

Asana

Creates projects and tasks when a new client signs.

HubSpot

Logs every client call and next step on the deal.

Google Drive

Reads contracts and brand guides as sources for the brain.

Canva

Creates design variations from an approved ad.

WordPress

Creates and edits posts, ready for your review.

Microsoft Teams

Posts updates to the chats and channels you choose.

Xero

Reads invoices and contacts to chase late retainers.

See all 100+ integrations

What agencies tell us.

"An SEO audit used to eat a week of someone's time. Now the agents crawl the site, run every check and hand us the report the same day. We review it, add the strategy and send it. The client gets more, and we stopped doing the copy and paste."
KeytrendsSEO and marketing agency, Brainstack partner
10hours a week back per account manager
100%client reports sent on time this quarter

Priced like a tool. Works like a hire.

Pick the plan for the size of your team. Use the Claude, ChatGPT or Gemini plan your agency already pays for.

1–3people, a small studio

Your first 3 agents: ads, reports and invoices.

Starter$99 /mo
4–10people, a growing agency

10 agents covering marketing, clients and admin.

Growth$499 /mo
11–30people, several teams

25 agents and dashboards for every area.

Scale$999 /mo
30+people or a group of agencies

We build it with you and agree a price.

Enterprise

Prices exclude VAT.Plus your own AI plan, paid directly to Anthropic, OpenAI or Google.Compare plans

Agency questions, answered.

Can every client have its own data?

Yes. Each client account can be its own knowledge space in your company brain, with its own sources and its own list of people who can see it. A freelancer working on one account never sees the others.

Will agents launch ads or spend client budget on their own?

No. You decide what each agent can do alone and what waits for you. Launching ads, raising budgets and sending anything to a client wait for your approval by default.

Do client reports go out with our name?

Reports are written in your agency's voice and sent from your own mailbox, after you approve them.

Which plan fits an agency?

A studio of up to 3 people starts on Starter ($99/month). An agency of up to 10 people fits Growth ($499/month), up to 30 people Scale ($999/month). Larger teams talk to us about Enterprise. Your AI plan is paid directly to the provider.

Our clients use Microsoft Teams, not Slack. Does that work?

Yes. Agents post updates and summaries to Teams chats and channels, Slack, Telegram or email, wherever your team and clients already talk. Approvals happen in Brainstack, Telegram, Slack, Discord or email.

Do we need to change our tools?

No. Agents work inside the tools your agency already pays for: Meta Ads, Google Ads, Notion, Asana, HubSpot, Drive, WordPress and 100+ more.

Your next client won't need a new hire.

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See your first agent at work.

30 minutes, on your own processes. Tell us what you'd hand over first and we'll come with it set up.

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