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Fast Party connects to Claude as a custom MCP connector — not through the Connector Store. You add it once using the Fast Party MCP server URL, and then Fast Party is available in all your Claude conversations.
Fast Party in Claude requires a Claude Pro account or higher. The connection is per user — each person connects their own Fast Party account.

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Steps to connect

1

Open Claude

Go to claude.ai or open the Claude desktop app. In the left sidebar, click Customize.
Claude home — click Customize in the left sidebar
2

Go to Connectors

In the Customize panel, select Connectors from the left menu.
Customize panel — Connectors section
3

Add Fast Party as a custom connector

Click the + icon at the top of the Connectors panel, then select Add custom connector.
Click + then Add custom connector
In the dialog that appears, enter:
  • Name: Fast Party
  • URL: https://mcp.fastparty.ai/mcp
Then click Add.
Add custom connector dialog with Fast Party name and MCP URL
4

Click Connect

Fast Party will appear in your Connectors list tagged as CUSTOM. Click Connect on the Fast Party listing.
Fast Party CUSTOM connector listed — click Connect
5

Sign in to Fast Party

A Fast Party sign-in window will open. Log in with your Fast Party account — using Google, Microsoft, phone number, or email. If you don’t have an account yet, you can sign up at app.fastparty.ai/signup.
Sign in to Fast Party
6

Authorise the connection

After signing in, you’ll see a confirmation that Fast Party is connected. Click Open Claude to return to the app.
Connected confirmation — click Open Claude
7

You're connected

Fast Party is now active in Claude. You’ll see it listed under Connectors with its full set of tools. To confirm it’s working, ask Claude:
“What Fast Party tools do you have access to?”
Claude will list all the actions it can take on your behalf.
Fast Party connected — tool permissions visible in Claude

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What permissions are requested?

When you connect Fast Party to Claude, you’re giving Claude the ability to:
  • Create and update your events
  • Add guests and send invitations
  • View RSVP statuses
  • Set up agendas, tasks, food preferences, and potlucks
  • Create and manage guest circles
Fast Party only accesses your data when you ask Claude to do something. It doesn’t run in the background or make changes without your instruction.

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Disconnecting

To remove the connection, go to Customize → Connectors → Fast Party → Disconnect. Disconnecting removes Claude’s access to your Fast Party account. Your Fast Party data is never affected — everything stays intact in Fast Party.