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Connect Mercury to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Manage your company finances through natural conversation.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 8 capabilities

We ship only the actions that matter.

Capability set01 / 02

01-04

4 capabilities in this set.

Part of 8 available through Mercury.

  1. 01

    List recipients

    Use this to get a list of your saved wire and ACH payment recipients.

  2. 02

    List cards

    This capability retrieves a list of your Mercury debit cards.

  3. 03

    Get balance

    This capability fetches the current balance for your account.

  4. 04

    List transactions

    This capability retrieves the transaction history for a specific account.

Capability set02 / 02

05-08

4 capabilities in this set.

Part of 8 available through Mercury.

  1. 05

    Get account

    This capability provides detailed information for a specific Mercury account.

  2. 06

    List accounts

    This capability returns a list of all your Mercury bank accounts.

  3. 07

    List customers

    Use this to view your Mercury invoicing customers.

  4. 08

    List invoices

    This capability pulls a list of your account receivable invoices.

Real work

What teams actually run

01

Runway Checks

Ask your agent for your total balance to quickly assess how much cash your startup has left.

02

Expense Auditing

Have your AI list all large outgoing transfers from the previous month to spot unusual spending.

03

Invoice Management

Use your AI to list all outstanding invoices and see which customers owe money.

04

Dashboard Building

Feed transaction data into your AI to generate custom financial reports or visualizations.

Automate a task

Put Mercury to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Mercury works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Mercury to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

884ms average. Fast in production.

Mercury is checked daily against the live service.

Daily averagePeak 1061ms
Oct 3Today
Fastest day
654ms
Slowest day
1061ms
14-day trend
Slowing+34%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 8 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Mercury, so you can see the experience inside your AI.

It does not authenticate your account with Mercury. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Mercury Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_RHJfUvNGjbjXOZwAj5iBeor8Z1fS3OZJyRo3dvdt/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Mercury capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "mercury-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_RHJfUvNGjbjXOZwAj5iBeor8Z1fS3OZJyRo3dvdt/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Mercury in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Mercury owners hand off.

This MCP is designed for professionals managing startup finances who want to move faster than a standard banking UI allows.

  • 01

    Founders

    Check runway and cash flow status without leaving your workspace.

  • 02

    Finance Teams

    Automate the way you categorize transactions and reconcile accounts.

  • 03

    Developers

    Pull financial data to build custom internal dashboards or capabilities.

FAQ

Questions Mercury owners ask.

  • 01

    How do I connect my Mercury account?

    You subscribe to the MCP on Vinkius and then enter your Mercury API Token. Once connected, you can use it in any compatible client.

  • 02

    Which AI clients can I use with this MCP?

    You can use this MCP with Claude, Cursor, Windsurf, VS Code, or any other MCP-compatible client.

  • 03

    Is my banking data secure?

    Vinkius hosts the MCP and manages the connection using your provided API Token to ensure your data stays within your controlled environment.

  • 04

    Can I see my debit card details?

    Yes, the MCP includes a capability to list your Mercury debit cards.

  • 05

    Can I track my company's revenue?

    Yes, you can use the MCP to list invoices and track incoming transactions to monitor your revenue.

  • 06

    Can I view balances and recent transactions?

    Yes. You can query balances for all accounts and list recent incoming/outgoing transactions.

  • 07

    How does Mercury authentication work?

    Mercury uses a Bearer token (API Token) against api.mercury.com/api/v1. Tokens must be generated with read-only scopes.

  • 08

    Can I initiate money transfers via the API?

    The standard API token allows read-only access to balances and transactions for security reasons.

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