The Windsor.ai Alternative for Running Ads, Not Just Reporting on Them
Windsor.ai is built to move ad data out into dashboards and warehouses, and it does that well. Opus Growth does the opposite direction: it connects Claude or ChatGPT straight into your ad accounts so you can change budgets, bids, keywords and creatives by chatting, with every write previewed before it runs.
https://mcp.opus-growth.comWhat you can do
Change campaigns, don't just chart them
Opus Growth exposes 221 tools that create and pause campaigns, set budgets and bids, add keywords and negatives, build audiences, upload creatives and configure conversion actions. Reporting connectors can show you the problem; Opus fixes it in the account.
Every write is previewed and approved
Each change is returned first as a dry-run: exactly which account, which entity, old value and new value. Nothing is applied until you say yes, so an AI assistant can never silently spend your money.
Four ad platforms live today
Google Ads (69 tools), Microsoft Advertising (30), TikTok Ads (25) and LinkedIn Ads (18) are live right now, plus Google Tag Manager, GA4, Search Console and YouTube for context. Meta Ads (27 tools) is complete and in final platform review; Business Profile (7 tools) is waiting on Google quota approval.
Agency and MCC safe by design
Multi-account access with login-customer-id support, per-customer credential isolation and full audit logging of every action. The Agency plan gives unlimited actions across all the client accounts you manage.
No ETL, no warehouse, no pipeline to maintain
There is nothing to schedule, sync or backfill. Opus reads live from the ad platform APIs at the moment you ask, so you are never acting on a dashboard that refreshed six hours ago.
Sixty-second setup, no API keys
Paste https://mcp.opus-growth.com into Claude or ChatGPT, sign in with Google, pick your accounts. No developer tokens, no OAuth apps to register, no self-hosting, no BI seat required.
Set it up in 60 seconds
- 1
Add the connector
In Claude (claude.ai or Desktop), ChatGPT developer mode, or any MCP-compatible app such as Cursor, add a custom connector and paste https://mcp.opus-growth.com. That single URL is the whole install.
- 2
Sign in and choose accounts
Approve the hosted OAuth prompt with your Google account and select the ad accounts you want available. Agencies can connect an MCC and work across every client account under it.
- 3
Ask for a change and approve it
Ask in plain language, for example "pause every ad group with CPA over $80". Opus returns a dry-run showing each affected entity and the exact edit, and applies it only after you confirm.
Ask in plain English
›Show me last 30 days by campaign across Google and Microsoft Ads, then pause anything spending over $200 with zero conversions.
›Pull the search terms report for my Search campaigns and add the obvious waste as exact-match negatives, but show me the list first.
›Cut daily budgets by 30% on my three worst-performing TikTok campaigns and tell me exactly what will change before applying.
›Compare cost per lead across Google, LinkedIn and TikTok this quarter and recommend where to shift $2,000 of monthly budget.
›Write three new responsive search ad variants for my brand campaign and stage them for my approval.
›Across every client account in my MCC, list campaigns whose spend is pacing more than 20% over budget this month.
How they compare
| Opus Growth | Windsor.ai | |
|---|---|---|
| Primary purpose | Let AI assistants operate ad accounts: analyze, then change campaigns, budgets, bids, keywords and creatives. | Move marketing data out of ad platforms into dashboards, warehouses and BI tools for reporting and attribution. |
| Read vs write | Read and write. 221 tools, the majority of which perform real create, update, pause and delete actions in the account. | Read-only by design. Pipelines extract and deliver data; they do not modify campaigns, and that is deliberate. |
| Approval and safety controls | Dry-run preview on every write showing old value and new value, explicit user approval required, full audit log. | Not applicable in the same way. Because nothing is written back to ad accounts, the risk surface is data access and storage rather than campaign changes. |
| Platforms covered | Deep coverage of a focused set: Google Ads 69 tools, Microsoft Advertising 30, TikTok 25, LinkedIn 18, plus GTM, GA4, Search Console and YouTube. Meta 27 in final platform review; Business Profile 7 pending Google quota approval. | Genuinely broad: 300+ data sources spanning ads, CRM, analytics, ecommerce and more. Nobody matches Windsor.ai on connector breadth. |
| Setup time | About a minute: paste one connector URL, sign in with Google, select accounts. No keys, no self-hosting. | Longer by nature: connect each source, choose a destination, map fields and schedule syncs. Reasonable for a pipeline, but it is a project. |
| Where the data lives | Nowhere new. Queries hit the ad platform APIs live at the moment you ask, so there is no copy to keep in sync. | In your destination: BigQuery, Snowflake, Looker Studio, Google Sheets and similar. Excellent if you want a durable historical store you control. |
| Who it is for | Performance marketers, PPC freelancers, in-house growth teams and agencies who make campaign changes every week. | Analysts, data teams and marketing ops who build blended reporting, attribution models and executive dashboards. |
| AI app support | Native MCP: Claude (web and Desktop), ChatGPT developer mode, Cursor and other MCP-compatible apps, using the same URL. | Not an AI app integration in the MCP sense. Data can of course be analyzed by AI once it lands in your warehouse or BI tool. |
| Agency and multi-account | MCC and multi-account native, with login-customer-id support, per-customer isolation and unlimited actions on the Agency plan. | Supports multiple accounts and clients as data sources, with reporting typically separated per destination or workspace. |
| Pricing model | Per seat and per action: free 7-day trial with 50 actions, Pro $49.99/mo for 5,000 actions, Agency $99.99/mo unlimited, yearly $499.99 / $999.99, USD via Lemon Squeezy. | Subscription tiers scaled to data sources, destinations and volume. Check windsor.ai for current rates, as this is the standard model for ETL tooling. |
| What it does NOT do | Does not build dashboards, warehouse your history, model multi-touch attribution or connect 300+ non-advertising sources. | Does not change anything in your ad accounts: no pausing campaigns, no budget edits, no keyword or creative management. |
| Typical outcome of a session | "I found 42 wasted search terms, here is the negative list, approve to apply" and the account is different five minutes later. | A refreshed, trustworthy dataset and a dashboard that tells you precisely where the money went. |
Frequently asked questions
Only if your goal is managing ads rather than building dashboards. Windsor.ai is an ETL connector: it extracts marketing data from 300+ sources into Looker Studio, BigQuery, Snowflake or your BI stack. Opus Growth is an MCP connector that lets Claude or ChatGPT read and change campaigns inside your ad accounts. If you bought Windsor to build reports, Opus will not replace it. If you bought it hoping to act on what the reports told you, Opus is the tool that closes that loop.
Yes, and they complement each other cleanly. Keep Windsor.ai piping data into your warehouse and dashboards for attribution, blended reporting and stakeholder decks, then use Opus Growth to execute the changes those dashboards suggest. They touch the same ad accounts but do different jobs: one moves data out, one acts inside.
An ETL connector is a scheduled pipeline: it copies ad data on a cadence into a destination you own, and the destination is where analysis happens. An MCP connector is a live tool interface for an AI assistant: the model calls the ad platform APIs in real time and can invoke write operations. ETL optimizes for historical breadth and BI integration; MCP optimizes for immediate action inside the source system.
Google Ads with 69 tools, Microsoft Advertising with 30, TikTok Ads with 25 and LinkedIn Ads with 18 are live now. Google Tag Manager (18), GA4 (10), Search Console (6) and YouTube (5) are also connected for context and measurement. Meta Ads (27 tools) is built and in final platform review, and Business Profile (7 tools) is waiting on Google quota approval, so we do not claim either as live yet.
No. Every write operation runs as a dry-run first and returns a preview of the exact account, entity, current value and proposed value. The change is only executed after you explicitly approve it, and every action is written to an audit log. Read-only questions run immediately because they cannot alter anything.
None of them. Opus Growth is hosted, so authentication is handled by OAuth when you sign in with Google. There is no Google Ads developer token to apply for, no app to register, no server to run and no warehouse to provision. Setup is one URL and a sign-in.
Yes. Opus Growth is a standard remote MCP server, so it works in Claude on claude.ai and Claude Desktop, in ChatGPT via developer mode connectors, and in other MCP-compatible apps such as Cursor. The same connector URL and the same 221 tools are available in every one of them.
Yes. Opus supports MCC and multi-account access with login-customer-id handling, keeps each customer's credentials isolated, and logs every action for review. The Agency plan at $99.99 per month covers unlimited actions and multi-account management, which is the usual fit for freelancers and agencies running many accounts.
Opus Growth charges per seat and per action, not per data source or row volume: a 7-day free trial with 50 actions and no card, Pro at $49.99 per month for 5,000 actions across all platforms, and Agency at $99.99 per month for unlimited actions plus MCC support. Yearly plans are $499.99 and $999.99. Billing is in USD through Lemon Squeezy as merchant of record, and you can cancel any time.
Explore more
If you need pipelines into Looker or BigQuery, Windsor.ai is built for that. If you want to change campaigns by chatting with Claude or ChatGPT, connect Opus Growth and make your first approved edit today.
