Early betaTools

Puzzle MCP server

The Puzzle MCP server lets your AI agent work with Puzzle from Claude, Cursor, or ChatGPT. It's official, made by Puzzle, runs online, so you add one address, and you sign in with your account.

OfficialRemote · OAuthOnline, asks you to sign in. Checked October 29, 2026

Add it to your agent

In Claude, open Settings, then Connectors, select Add custom connector, and paste this address.

https://app.puzzle.io/mcp

What Puzzle says it does

Startup accounting: cash, burn, runway, financial statements, transactions, bills and invoices.

Listed in the official MCP Registry as io.puzzle/puzzle.

Before you connect it

An MCP server lets your agent read and change what you connect it to in Puzzle. Connect a test account or a test project first, and check what your agent can do before you give it your real data.

Questions

Is there an official Puzzle MCP server?

Yes. Puzzle publishes it in the official MCP Registry as io.puzzle/puzzle.

How do I connect Puzzle to Claude?

Add https://app.puzzle.io/mcp as a custom connector in Claude, or run claude mcp add --transport http puzzle https://app.puzzle.io/mcp in Claude Code.

Do I need a Puzzle account to use its MCP server?

Yes. The first time your agent connects, the server asks you to sign in to Puzzle, and your agent then works with what your account can see.

More about Puzzle

Puzzle in the ZeroCrew directory: what it does, reviews from founders, and alternatives.

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