PaidSync>Blog>Add Negative Keywords Across Client Accounts With AI

Add Negative Keywords Across Client Accounts With AI

Founder written
Author: Ahmed Ashraf|4 min read|Updated October 24, 2026
$1B+ ad revenue generated $500M+ managed Ex-Scandiweb paid media lead 630+ MCP tools

To add negative keywords across client accounts with AI, connect your Google Ads Manager account to PaidSync.ai, then ask Claude or ChatGPT to run the wasted spend report on one client, add the terms you approve, and move to the next client. Each client keeps its own list, because every request runs on the account you switched to. PaidSync.ai runs the whole loop in one chat, so an agency can clean up every account without logging in and out.

Where Negative Keyword Work Piles Up

Wasted search terms build up in every client account, and the same cleanup repeats each month. PaidSync.ai gives Claude three tools for it:

The first two tools only read. Only the third one changes an account.

How the Workflow Is Built

ToolWhat it does
set_active_accountSets the client account the next requests run on
get_wasted_spend_reportReturns total wasted spend and the cost of each search term for the dates you pick
add_negative_keywordsWrites the negatives you approved to the campaigns or ad groups you named

Two details catch people out. A negative added in one client account does not carry to another, so each client needs its own review. And decide each client's target cost per conversion first, because it sets what counts as waste.

How to Add Negative Keywords for Each Client With Claude in 5 Steps

These steps use Claude. PaidSync.ai also works in ChatGPT, and the prompts are the same.

1

Connect your Manager account

Sign up at paidsync.ai, then connect your Google Ads Manager account on Google's own sign-in screen. There is no developer token and no Google Cloud project.

2

Add PaidSync.ai to Claude

Add PaidSync.ai from Claude's connector directory and sign in. Ask "list the Google Ads accounts under my Manager account" and choose the one to work in.

3

Run the report for one client

Switch to the client account and ask "Run get_wasted_spend_report for the last 30 days and show the 10 search terms that cost the most."

4

Approve the terms

Pick the terms to block for that client, then ask Claude to add them with add_negative_keywords. Check the campaign and match type before you confirm.

5

Move to the next client

Switch to the next account and repeat with the same dates. Each client gets its own review and its own list.

How to Check Each Client

Run the report again after a week for each client and compare it with the first run. Wasted spend on the blocked terms should stop, and your assistant can show both reports side by side.

For one account, see our guide to automating negative keyword management with AI.

"Switch to this client's account, run get_wasted_spend_report for the last 30 days and list the search terms with cost and no conversions."
One client's waste.
"Add these approved terms as phrase match negatives to this client's search campaigns."
Writes only what you approved.

How PaidSync.ai Protects You

Every Google Ads tool PaidSync.ai offers is on the Google Ads MCP server page. For the Manager account setup, see how agencies run Google Ads MCC with AI.

Frequently Asked Questions

Can AI clean up negative keywords across all my clients' Google Ads accounts?

Yes, one client at a time. With PaidSync.ai connected, switch to a client account, run the wasted spend report, add the terms you approve and move to the next account.

Can I add the same negatives to every client?

Add them to each account in turn. A negative in one client account does not carry to another, and each client's search terms are different.

Does this work in ChatGPT?

Yes. PaidSync.ai connects Google Ads to ChatGPT and to Claude, and the same tools run in both.

Will the assistant change an account without asking?

The report only reads. Adding a negative keyword is a change, and your assistant's own approval setting decides whether it asks first.

How much does it cost?

PaidSync.ai is free for 15 tasks a month with no card. Pro starts at $99 a month. Team starts at $249 a month for 5 seats and lists unlimited brand spaces. See pricing.

How to Automate Negative Keyword Management with AI→ How Agencies Run Google Ads MCC With AI→ How Agencies Manage Multiple Ad Accounts with AI and MCC→ Google Ads MCP Server with Full Write Access→

PaidSync.ai runs 630+ tools across 14 ad and analytics platforms. Connect your accounts once and use them in the AI assistant you already work in.

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