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The Free plan can currently use MCP’s shared tools. Free and paid plans are given the same MCP tools. Being able to see a tool is not the same as a task running to completion, though. These conditions still apply to each task.
There is no confirmed end date announced yet for the free usage. Carat’s MCP page may show a launch period, so check carat.im/mcp for the latest terms.

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What you see when credits fall short

If you make a request without enough credits, this comes back in the chat.
Top up credits or change plans on My Credits(내 크레딧). If your account has unlimited benefits, you can keep using unlimited-eligible models with no credits in the [Generator(생성기)] on the Carat app or website.
The AI tool you are using may rephrase the message, so the exact wording on your screen can differ. The reason (insufficient credits) and the link stay the same.

Using Carat inside Claude (MCP connector)

The three connection steps and example requests

Unlimited benefits do not apply to MCP

How credits are charged for MCP generations

Pricing plans

Credits and benefits by plan

When you run out of credits

Topping up credits and changing plans