How to Connect Pinterest to Claude with MCP?

Before you start

You'll need a SourcetoMCP account with at least one brand created, a Pinterest account with access to at least one ad account, and a Claude account. Custom connectors work on Free, Pro, Max, Team and Enterprise, though Free accounts are limited to one at a time.

Connect Pinterest Ads to SourcetoMCP

1. 1From your dashboard, go to Connectors → Add a connection.
2. 2Find the Pinterest Ads card and select Connect.
3. 3Sign in with the Pinterest account that has access to the ad account you want. This opens Pinterest's own consent screen on pinterest.com and asks you to approve access to your ad performance data plus your boards and pins. SourcetoMCP can both report on them and make changes to them.
4. 4Back in SourcetoMCP, choose which ad account(s) to connect, then confirm. They show up on your Connections page.

Add SourcetoMCP as a connector in Claude

Claude adds every custom connector the same way, under Customize then Connectors. These steps are that flow pointed at SourcetoMCP.

1. 1In SourcetoMCP, open Connect an agent from the dashboard sidebar and copy your server address (it looks like https://sourcetomcp.com/api/mcp).
2. 2In Claude, open Customize, then Connectors.
3. 3Select +, then Add custom connector.
4. 4Paste in your server address. You can leave Advanced settings alone, because SourcetoMCP runs its own OAuth and never needs a client ID or secret from you.
5. 5Click Add.
6. 6The first time Claude uses it, you'll be asked to sign in to SourcetoMCP and approve access, the same OAuth approval you'd see connecting any other app. After that it reconnects on its own.

On a Team or Enterprise plan, only an Owner can add a connector, from Organization settings, then Connectors. Everyone else then opens Customize → Connectors and clicks Connect to sign in with their own SourcetoMCP account, so each person only ever reaches the sources their own account can see.

Once approved, the connection appears under Active connections on the Connect an agent page in SourcetoMCP, so you can see exactly what has access at any time.

Ask Claude about your Pinterest account

Adding the connector makes it available, and you still switch it on per conversation. In a chat, select the + button, choose Connectors, and toggle SourcetoMCP on.

Claude shows a panel for each tool call, named in plain English, so you can see which data it pulled and check the numbers came from your account rather than from the model.

With both pieces connected, Claude can query campaign, ad group and creative performance, break down conversions by funnel step, and separately report on your boards and pins' organic reach, and act on either side if you ask. Try something like:

1. 1How did my campaigns perform this week compared to last?
2. 2Break down my conversions by funnel step for this month.
3. 3Which of my boards are getting the most engagement right now?
4. 4Reallocate budget from my weakest campaigns into my strongest ones.

The first three are read-only reports. The last one is a write action. See the note below on how SourcetoMCP handles those.

A note on write actions

Unlike a read-only connector, Pinterest Ads through SourcetoMCP can create and change real things: campaigns, boards and pins, on both the ad and organic side. New campaigns are created paused by default, so nothing starts spending without an explicit follow-up action. Board and pin deletion is real too, and cannot be undone from inside SourcetoMCP, so it's worth reading what Claude proposes before confirming anything it describes as removing or replacing content, the same as you would for any assistant with write access to a live account.

Troubleshooting

My ad account isn't in the list when connecting: the signed-in Pinterest account doesn't have access to that ad account. Add it under Pinterest's own Business Access settings, then reconnect.

There is no Connectors option under Customize: on Team and Enterprise plans an Owner adds connectors for the whole organisation. Ask an Owner to add it from Organization settings → Connectors, and it will then show up for you to connect.

Claude won't let you add another connector: Free accounts can keep one custom connector at a time. Remove the one you have, or move to Pro or Max.

Claude says it can't find the tool or has no data: check SourcetoMCP is toggled on for that conversation under the + menu. If it is, confirm the connection still shows under Active connections in SourcetoMCP, then remove and re-add it to trigger a fresh approval.

Revoking access

You can disconnect from either side. In SourcetoMCP, remove the account from your Connections page, or revoke Claude's access entirely from the Connect an agent page. In Claude, open Customize → Connectors and remove it. On Team and Enterprise an Owner removes it for everyone from Organization settings → Connectors.

Still stuck?

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