Claude Duet

Before you start

• Duet is a research preview, launched on 21 October 2026, with a waitlist for Claude Pro and Max subscribers in the US. Team and Enterprise plans are not included yet.
• It runs on the web at claude.ai and in the Duet app for iOS, and uses your existing Claude plan limits.
• Create an MCP Ads account and connect the ad accounts you want Duet to see. It only ever sees what you connected there.

Add the connector in Claude

Duet uses the memory, skills and connectors from your Claude account, so the setup happens in Claude, once. If MCP Ads is already one of your Claude connectors, skip to the next section.

1. Add it in one click

   The link below opens the Add custom connector dialog in Claude with the name and server URL already filled. Claude shows you both values and asks you to confirm — prefilling never grants access on its own. The manual steps that follow do the same thing by hand.

   One-click install linkCopy

   https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=mcp-ads&connectorUrl=https%3A%2F%2Fmcp-ads.com%2Fmcp-slim

2. Open Settings, then Connectors

   In Claude Desktop or on claude.ai, go to Settings and find the Connectors section.

3. Add a custom connector

   Paste the server URL. Claude will open a browser window for the one-time authorisation.

   Custom connector URLCopy

   https://mcp-ads.com/mcp-slim

Verify it works

The first answer should list the platforms and accounts your sign-in reached. If it lists nothing, the connector is added but no ad account is connected yet; connect one in the MCP Ads dashboard and ask again.

Use MCP Ads for every question about my ads, analytics or SEO.
List the ad accounts you can see through it.
In my morning brief, include yesterday's spend, CPA and ROAS across Google Ads and Meta.

What to have Duet watch

Duet already briefs you every morning and checks your connected apps every few hours. These are the ad-account items worth adding to that.

• Morning brief: yesterday’s spend, conversions, CPA and ROAS across Google Ads and Meta.
• Overspend alert: a Google Ads campaign whose budget pacing says it will use its daily budget early.
• Tracking alert: a Google Ads conversion action that recorded nothing after a week of conversions, which usually means the tag stopped firing.
• Budget drafts: a budget change that moves money to the campaign beating your target CPA, held for your approval.
• Content calendar: this week’s social posts, drafted for you to review and then scheduled on the MCP Ads content calendar, which publishes each one at its time.

Approvals: what Duet will and will not do

• Duet asks for your approval before actions like sending a message, making a payment, signing a document or deleting a file. It does not see your passwords.
• MCP Ads adds its own layer: budgets, statuses and new campaigns go through its confirmation and workspace policy controls, and new campaigns are created paused.
• Reads are unrestricted: reports, audits, search terms, change history, competitor ads.

Troubleshooting

• The Connectors section is not in Settings: custom connector support depends on your Claude plan and surface, which is a Claude plan question rather than an MCP Ads one.
• Duet says it has no MCP Ads tools: check MCP Ads is listed in your Claude connectors and that the browser authorisation completed rather than being closed.
• An account you expected is missing: the login you authorised does not have access to it. Reconnect it from the MCP Ads dashboard.

Go further

Duet for ads

What to ask Duet once MCP Ads is connected.

Claude

The same connector, used from a regular Claude chat.

Quickstart

Connect an ad account first if you have not yet.