MCP server

Mercoa MCP by usefulapi

io.usefulapi/mercoa

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Query and manage Mercoa AP/AR bill-pay: entities, invoices, transactions and payment methods.

Website Source

At a glance

Type

MCP server

Publisher

usefulapi.io (verified by the MCP Registry)

Status

Working at last check

Tools

17

Token cost

About 4,952 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http mercoa https://mercoa.usefulapi.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.mercoa]
url = "https://mercoa.usefulapi.io/mcp"

Gemini CLI

{"mcpServers":{"mercoa":{"httpUrl":"https://mercoa.usefulapi.io/mcp"}}}

Cursor

{"mcpServers":{"mercoa":{"url":"https://mercoa.usefulapi.io/mcp"}}}

VS Code

{"servers":{"mercoa":{"type":"http","url":"https://mercoa.usefulapi.io/mcp"}}}

Antigravity

agy mcp add mercoa https://mercoa.usefulapi.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"mercoa","server_url":"https://mercoa.usefulapi.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"mercoa","server_url":"https://mercoa.usefulapi.io/mcp"}

Tools

• mercoa_add_invoice_comment ~147 tokens
  WRITE — adds a comment to an invoice (visible in its activity log). POST /invoice/{invoiceId}/comment.
• mercoa_create_entity ~345 tokens
  WRITE — creates a real entity (customer/vendor/payor/payee) in Mercoa. Supply role flags, accountType, and a nested `profile` object (business or individual details). POST /entity.
• mercoa_create_invoice Moves money · ~532 tokens
  WRITE — creates a real invoice/bill in Mercoa. Set status (DRAFT to stage, NEW to submit), amount, currency, payer/vendor, dates and line items. POST /invoice.
• mercoa_find_entities ~407 tokens
  Find/search entities (buyers, vendors, payors, payees). Use to look up counterparties by name/email/foreignId or list all. GET /entity.
• mercoa_find_invoices ~826 tokens
  Find/search invoices (bills) across payers and vendors. Filter by status, entity, date, approver and more. GET /invoices (plural list endpoint).
• mercoa_find_transactions ~501 tokens
  List/search payment transactions. Filter by entity, invoice, status, type and date. GET /transactions.
• mercoa_get_entity ~93 tokens
  Get a single entity by ID (or foreign ID). GET /entity/{entityId}.
• mercoa_get_entity_events ~188 tokens
  Get the event/audit log for an entity. GET /entity/{entityId}/events.
• mercoa_get_entity_invoice_metrics ~617 tokens
  Get aggregate invoice metrics (totals/counts, grouped by currency) for an entity's payables/receivables — for AP/AR dashboards and aging. GET /entity/{entityId}/invoice-metrics.
• mercoa_get_invoice ~92 tokens
  Get a single invoice (bill) by ID. GET /invoice/{invoiceId}.
• mercoa_get_invoice_events ~201 tokens
  Get the event/audit log for an invoice (status changes, approvals, payments). GET /invoice/{invoiceId}/events.
• mercoa_get_organization ~77 tokens
  Get the caller's Mercoa organization configuration (settings, payment methods enabled, etc.). GET /organization.
• mercoa_get_payment_method ~130 tokens
  Get a single payment method for an entity. GET /entity/{entityId}/paymentMethod/{paymentMethodId}.
• mercoa_get_transaction ~93 tokens
  Get a single payment transaction by ID. GET /transaction/{transactionId}.
• mercoa_list_entity_payment_methods ~136 tokens
  List an entity's payment methods (bank accounts, cards, check, etc.). GET /entity/{entityId}/paymentMethods.
• mercoa_list_entity_users ~99 tokens
  List the users belonging to an entity (approvers, admins, etc.). GET /entity/{entityId}/users.
• mercoa_update_invoice ~468 tokens
  WRITE — updates an existing invoice/bill (all fields optional). Commonly used to advance status (e.g. DRAFT→NEW→SCHEDULED) or change amounts, dates, or payment methods. POST /invoice/{invoiceId}.

Browse

• Email
• Payments
• Invoicing and accounting

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