Camberstack: Google Ads

Camberstack: a Google Ads MCP server

Connect Google Ads, Search Console, Google Analytics 4 and Merchant Center to Claude, ChatGPT, Cursor or any MCP client with one Google sign-in, and use them together: the searches you pay for that already rank, whether ad clicks convert on the landing page, which disapproved products were earning in Shopping. Your AI reads with read-only tools and can propose changes, from negative keywords to whole Search, Performance Max, Display and YouTube campaigns, GA4 key events and Merchant Center product fixes. Nothing changes until you approve a specific proposal; risky changes and deletions Google can't reverse are flagged first, and the rest can be undone. A demo account lets anyone try every tool first.

Hosted: https://camberstack.io/mcp. Free: every tool and unlimited changes on 1 account, with one switch a month; from November 15, one Google service at a time. Plus $7/mo: all four services on 1 account. Pro $15/mo: up to 5 accounts. Agency $49/mo: up to 25.

Setup guides, with screenshots and troubleshooting: Connect Google Ads to Claude · Connect Google Ads to ChatGPT · every tool · Cursor, VS Code and others

Tools

The Search Console tools take either days or exact start_date/end_date, and fresh: true to include the last 2-3 days Google is still filling in. Sitemaps and properties change through propose_search_console_changes (submit or delete a sitemap, add or remove a property). Requesting indexing has no API, and verifying a property is done in Search Console.

The Google Analytics tools need analytics.readonly and analytics.edit (Google-verified sensitive scopes). Sign-in asks for them alongside Ads and Search Console; a connection made before they were added gets a personal /connect/analytics link on its first Analytics call, which adds both to the same Google account. The Cloud project needs the Google Analytics Data API and Admin API enabled.

Merchant Center accounts are their own plan allowance, the same size as Google Ads' (Free 1, Plus 1, Pro 5, Agency 25), counted as mc: in tool_calls with their own switch (switch_account takes mc: ).

The Merchant Center tools need content, which isn't part of connecting: the first call without it returns a personal /connect/merchant-center link that adds it. Before any call works, the Cloud project needs the Merchant API enabled and registered once with a production Merchant Center account the operator administers (POST https://merchantapi.googleapis.com/accounts/v1/accounts/{ID}/developerRegistration:registerGcp); merchants don't register. Unregistered, calls answer 401 "not registered", which the tools report as Camberstack's to fix. Reports work on standalone accounts and sub-accounts, not on an advanced account itself. Account 000000001 is the demo (sample data: two best sellers disapproved for a price mismatch 9 days ago; overrides there fix the issue).

Products Camberstack creates live in its own primary API source ("Camberstack products"); only those can be updated in place or deleted (undo re-creates them from Camberstack's copy). Adding an offer_id another feed already has is refused, since Google would move that product into our source ("offer stealing").

Merchant Center changes never edit the merchant's feed. Each is an override in Camberstack's own supplemental data source ("Camberstack overrides"), created on the first write. Google applies a supplemental source only once it's in a primary source's rules, so the first override on a feed's products also patches that feed's defaultRule to put ours first (every source already there is kept): the summary shows it as a ⚠ line. Feeds made in the Merchant Center UI or by autofeed can't be patched, and the proposal says so. Google can't read overrides back, so merchant_overrides keeps Camberstack's copy per product; undo restores exactly that (removing the input when there was none). The Merchant API has no dry run: re-resolving at apply is the check, as with GA4.

What a proposal can do:

• Control: add negative keywords; pause or enable a campaign, ad group, keyword or ad; set a campaign's daily budget (never a shared budget) or its end date.
• Build, always created paused (building and spending are two separate approvals):
• a Search campaign: ad groups, keywords, responsive search ads, targeting, negatives, sitelinks;
• a Performance Max campaign: asset groups of text, images and YouTube videos, with the business name and logo on the campaign as Google's brand guidelines require (no shopping feed);
• a Display campaign: responsive display ads;
• a Demand Gen campaign with YouTube video ads, the API's only way onto YouTube (it refuses to create Video campaigns: MUTATE_NOT_ALLOWED, v23).

Images are existing image assets or https URLs, which are downloaded SSRF-safe (src/fetch-safe.ts) and uploaded. A proposal can also add an ad group, keywords, an ad or sitelinks to an existing campaign.

• Tune: keyword and ad group bids, bid strategy, location and language targeting, presence-only location mode, final URL suffix, and a campaign's EU political advertising declaration (Google refuses every change to an account while any campaign lacks one).
• Delete: keywords, ads, ad groups, campaigns, a campaign's negatives and sitelinks (delete_*).
• Edit and organize: edit a responsive search ad in place (it keeps its id and stats), ad group negatives, shared negative lists, ad schedules, device bids, callouts, snippets, business name, logos and images, AI Max and Google-written text, conversion value, window and attribution, remarketing lists, applying or dismissing recommendations, and review requests for exemptible refusals.
• Measure: create or remove a conversion action, set its counting, import a GA4 key event, scope a campaign to one conversion goal.
• Connect: link or unlink a Merchant Center account (productLinks:create/:remove; neither dry-runs: create has none and remove's always answers 500, so propose checks the account is reachable and not a test account, which Google won't link).

Risky changes carry a ⚠ line in the proposal summary: enabling a campaign, more than doubling a budget or a bid, switching bid strategy, removing the last location, a new primary conversion action, removing a conversi