Mercury MCP

Mercury MCP MCP integration

Reports account balances and cards, opens transactions with their attachments, pulls invoices and customers, and covers treasury and pending approvals.

30actions available

Three actions you can hand over today

Every action runs live through MCP. Nothing to build, nothing to maintain.

  • Getaccounts

    Lyro retrieves a paginated list of all accounts associated with the authenticated organization. Finance teams review their full account portfolio instantly instead of logging in to Mercury separately.

  • Getaccountstatements

    Lyro fetches monthly statements for a specific account to show transaction history and balances. Customers get account summaries immediately when Lyro pulls their statements during conversation.

  • Getorganization

    Lyro pulls organization details including legal business name and DBAs for customer verification. Support staff confirm company identity quickly without digging through corporate documents.

See all 30 actions

How businesses use Mercury MCP + Lyro

Each card is one request a support team gets, and the Mercury MCP actions Lyro runs to close it.

  • Report on balances and the cards behind them

    Lyro pages through the organisation's accounts, opens a specific one by ID, and lists every debit and credit card attached to it so a spend question resolves to the card that made it.

    Get AccountsGet AccountGet Account Cards
  • Track down one transaction and its paperwork

    Lyro lists transactions on an account, opens one by ID with its full detail including check images and related metadata, and fetches the download URL for the attachment filed against it.

    List TransactionsGet Transaction By IDGet Attachment
  • Reconcile an invoice against the customer who owes it

    Lyro pages the invoice list, opens the specific invoice with its attachments, and pulls the customer record behind it so a receivables question is answered in one pass.

    List InvoicesGet InvoiceGet Customer
  • Cover treasury and payments waiting on approval

    Lyro lists the treasury accounts on the organisation, reads the transactions and statements against one of them, and reports which send-money requests are still sitting in approval.

    Get TreasuryGet Treasury TransactionsList Send Money Approval Requests

How it works

Get started in 3 steps

Connect once, then just ask. There is no workflow builder to learn and nothing to maintain — Lyro reads the Mercury MCP actions it has and picks the ones a request needs.

  1. 01

    Connect Mercury MCP

    Authorize the Mercury MCP account your team already uses — one consent screen, no API keys, no mapping tables. Lyro can only do what you granted that account, and you can disconnect it at any time.

  2. 02

    Tell your agent what you need

    Describe the job the way you would hand it to a teammate. Lyro maps it to the Mercury MCP actions that close it and chains as many as the request needs.

  3. 03

    Watch it work

    The agent runs the actions inside the conversation the customer is already in, so nobody copies data between tabs and your team can take over at any point.

    Get started free
Mercury MCP · Lyro

Everything else about Mercury MCP

Setup, permissions, and the limits of what Lyro can do inside Mercury MCP.

  • No, and by design. Mercury MCP is a read-only server, so every action in this toolkit retrieves data and none of them initiate a payment. List Send Money Approval Requests reports which transfers are pending approval and their status, but approving or sending one stays inside Mercury with a human.

Every action available in Mercury MCP

All 30 actions your agent can call on Mercury MCP, straight from the live MCP connection.

  • Getaccount

    Get account by ID.

  • Getaccountcards

    Retrieve all debit and credit cards associated with a specific account.

  • Getaccounts

    Retrieve a paginated list of accounts.

  • Getaccountstatements

    Retrieve a paginated list of monthly statements for a specific account.

  • Getattachment

    Retrieve attachment details including download URL.

  • Getcurrentdate

    Get the current date in the format.

  • Getcustomer

    Retrieve details of a specific customer by their ID.

  • Getinvoice

    Retrieve details of an invoice by its ID.

  • Getorganization

    Retrieve information about your organization including EIN, legal business name, and DBAs.

  • Getrecipient

    Retrieve details of a specific recipient by ID.

  • Getrecipients

    Retrieve a paginated list of all recipients.

  • Getsaferequest

    Retrieve a specific SAFE request by its ID.

  • Getsaferequests

    Retrieve all SAFE (Simple Agreement for Future Equity) requests for your organization.

  • Gettransaction

    Get transaction by ID.

  • Gettransactionbyid

    Retrieve a single transaction by its ID.

  • Gettreasury

    Retrieve a paginated list of all treasury accounts associated with the authenticated organization.

  • Gettreasurystatements

    Retrieve a paginated list of statements for a specific treasury account.

  • Gettreasurytransactions

    Retrieve paginated treasury transactions for a specific treasury account.

  • Getuser

    Get user by ID.

  • Getusers

    Get all users.

  • Getwebhook

    Retrieve details of a specific webhook endpoint by ID.

  • Getwebhooks

    Retrieve a paginated list of all webhook endpoints for your organization.

  • Listcategories

    Retrieve a paginated list of all available custom expense categories for the organization.

  • Listcredit

    Retrieve a list of all credit accounts for the organization.

  • Listcustomers

    Retrieve a paginated list of customers.

  • Listinvoiceattachments

    Retrieve a list of all attachments for a specific invoice.

  • Listinvoices

    Retrieve a paginated list of invoices.

  • Listrecipientsattachments

    Retrieve a paginated list of all recipient tax form attachments across all recipients in the organization.

  • Listsendmoneyapprovalrequests

    Retrieve a paginated list of send money approval requests for the authenticated organization.

  • Listtransactions

    $2b.

Ready to connect Mercury MCP?

Authorize the account and your agent has all 30 actions from the first conversation.

Support agent working at a laptop next to the Lyro mascot