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Payments & FinanceAuth: OAuth

Mercury MCP Server

Connect Mercury to your AI agents with the Mercury MCP server.

Updated

Use Mercury on Gamut

What is Mercury MCP?

The Mercury MCP server is a Model Context Protocol server that connects Mercury to AI agents and assistants as a set of tools. With it connected, an agent can work with Mercury (business banking — accounts, balances, transactions, and payments) directly — instead of you copying data in and out by hand.

It is a remote MCP server that uses OAuth, so you point your client at the server URL, authorize once, and the Mercury tools become available to the model.

Connect the Mercury MCP server

Connect Mercury MCP to Claude Code

  1. 1

    Add the server

    Use `claude mcp add` with the Mercury MCP server URL (or its `npx` command), following the official docs.

  2. 2

    Authorize

    Complete authentication (OAuth) so Claude Code can call the server.

  3. 3

    Verify

    Ask Claude to use a Mercury tool to confirm the connection is live.

Connect Mercury MCP to Cursor

  1. 1

    Open MCP settings

    In Cursor, go to Settings → MCP → Add new server.

  2. 2

    Add Mercury

    Provide the Mercury MCP server URL or command and complete authentication.

  3. 3

    Test

    Reference Mercury from chat to confirm Cursor can reach the tools.

Using Mercury MCP with Gamut

On Gamut, the Mercury MCP server becomes a tool your agents use inside an automated, event-driven workflow — triggered by an event or a schedule, acting through Mercury and your other connected MCP servers, with the connection managed by Gamut rather than a local config file.

Frequently asked questions

What is the Mercury MCP server?

It is a Model Context Protocol server that exposes Mercury to AI agents as tools so they can work with it (business banking — accounts, balances, transactions, and payments).

How do I connect the Mercury MCP server?

Point your MCP client (Claude, Cursor, or Gamut) at the Mercury MCP server URL and complete authentication (OAuth). See the official documentation for the exact URL and scopes.

Can I use Mercury MCP with Gamut?

Yes — Gamut supports the Mercury MCP server, so your agents can use it as a tool in automated, triggered workflows.