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Mercoa MCP by usefulapi

by usefulapi.io · remote · no sign-in to list tools · v1.16.3 · published by io.usefulapi

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

Deletes · 4
CompareRegistry entry

17 tools: 4 can delete or cancel things and 13 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

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

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

17 tools

Deletes or cancels 4Claude Code: deny
  • mercoa_add_invoice_commentWRITE — adds a comment to an invoice (visible in its activity log).No findings

    Why it is in this group

    • The name "mercoa_add_invoice_comment" says "add": a word for a change.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    WRITE — adds a comment to an invoice (visible in its activity log). POST /invoice/{invoiceId}/comment.

    Annotations the server declares

    • title: Add invoice comment
    • destructiveHint: true
  • mercoa_create_entityWRITE — creates a real entity (customer/vendor/payor/payee) in Mercoa.No findings

    Why it is in this group

    • The name "mercoa_create_entity" says "create": a word for a change.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Create entity
    • destructiveHint: true
  • mercoa_create_invoiceWRITE — creates a real invoice/bill in Mercoa.No findings

    Why it is in this group

    • The name "mercoa_create_invoice" says "create": a word for a change.
    • The input carries an amount (input.amount) and a currency, so it moves money.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Create invoice
    • destructiveHint: true
  • mercoa_update_invoiceWRITE — updates an existing invoice/bill (all fields optional).No findings

    Why it is in this group

    • The name "mercoa_update_invoice" says "update": a word for a change.
    • The input carries an amount (input.amount) and a currency, so it moves money.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    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}.

    Annotations the server declares

    • title: Update invoice
    • destructiveHint: true
Only reads 13Claude Code: allow
  • mercoa_find_entitiesFind/search entities (buyers, vendors, payors, payees).No findings

    Why it is in this group

    • The name "mercoa_find_entities" says "find": a word for reading.
    Description, as the server wrote it
    Find/search entities (buyers, vendors, payors, payees). Use to look up counterparties by name/email/foreignId or list all. GET /entity.

    Annotations the server declares

    • title: Find entities
    • readOnlyHint: true
  • mercoa_find_invoicesFind/search invoices (bills) across payers and vendors.No findings

    Why it is in this group

    • The name "mercoa_find_invoices" says "find": a word for reading.
    Description, as the server wrote it
    Find/search invoices (bills) across payers and vendors. Filter by status, entity, date, approver and more. GET /invoices (plural list endpoint).

    Annotations the server declares

    • title: Find invoices
    • readOnlyHint: true
  • mercoa_find_transactionsList/search payment transactions.No findings

    Why it is in this group

    • The name "mercoa_find_transactions" says "find": a word for reading.
    Description, as the server wrote it
    List/search payment transactions. Filter by entity, invoice, status, type and date. GET /transactions.

    Annotations the server declares

    • title: Find transactions
    • readOnlyHint: true
  • mercoa_get_entityGet a single entity by ID (or foreign ID).No findings

    Why it is in this group

    • The name "mercoa_get_entity" says "get": a word for reading.
    Description, as the server wrote it
    Get a single entity by ID (or foreign ID). GET /entity/{entityId}.

    Annotations the server declares

    • title: Get entity
    • readOnlyHint: true
  • mercoa_get_entity_eventsGet the event/audit log for an entity.No findings

    Why it is in this group

    • The name "mercoa_get_entity_events" says "get": a word for reading.
    Description, as the server wrote it
    Get the event/audit log for an entity. GET /entity/{entityId}/events.

    Annotations the server declares

    • title: Get entity events
    • readOnlyHint: true
  • mercoa_get_entity_invoice_metricsGet aggregate invoice metrics (totals/counts, grouped by currency) for an entity's payables/receivables — for AP/AR dashboards and aging.No findings

    Why it is in this group

    • The name "mercoa_get_entity_invoice_metrics" says "get": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Get entity invoice metrics
    • readOnlyHint: true
  • mercoa_get_invoiceGet a single invoice (bill) by ID.No findings

    Why it is in this group

    • The name "mercoa_get_invoice" says "get": a word for reading.
    Description, as the server wrote it
    Get a single invoice (bill) by ID. GET /invoice/{invoiceId}.

    Annotations the server declares

    • title: Get invoice
    • readOnlyHint: true
  • mercoa_get_invoice_eventsGet the event/audit log for an invoice (status changes, approvals, payments).No findings

    Why it is in this group

    • The name "mercoa_get_invoice_events" says "get": a word for reading.
    Description, as the server wrote it
    Get the event/audit log for an invoice (status changes, approvals, payments). GET /invoice/{invoiceId}/events.

    Annotations the server declares

    • title: Get invoice events
    • readOnlyHint: true
  • mercoa_get_organizationGet the caller's Mercoa organization configuration (settings, payment methods enabled, etc.).No findings

    Why it is in this group

    • The name "mercoa_get_organization" says "get": a word for reading.
    Description, as the server wrote it
    Get the caller's Mercoa organization configuration (settings, payment methods enabled, etc.). GET /organization.

    Annotations the server declares

    • title: Get organization
    • readOnlyHint: true
  • mercoa_get_payment_methodGet a single payment method for an entity.No findings

    Why it is in this group

    • The name "mercoa_get_payment_method" says "get": a word for reading.
    Description, as the server wrote it
    Get a single payment method for an entity. GET /entity/{entityId}/paymentMethod/{paymentMethodId}.

    Annotations the server declares

    • title: Get payment method
    • readOnlyHint: true
  • mercoa_get_transactionGet a single payment transaction by ID.No findings

    Why it is in this group

    • The name "mercoa_get_transaction" says "get": a word for reading.
    Description, as the server wrote it
    Get a single payment transaction by ID. GET /transaction/{transactionId}.

    Annotations the server declares

    • title: Get transaction
    • readOnlyHint: true
  • mercoa_list_entity_payment_methodsList an entity's payment methods (bank accounts, cards, check, etc.).No findings

    Why it is in this group

    • The name "mercoa_list_entity_payment_methods" says "list": a word for reading.
    Description, as the server wrote it
    List an entity's payment methods (bank accounts, cards, check, etc.). GET /entity/{entityId}/paymentMethods.

    Annotations the server declares

    • title: List entity payment methods
    • readOnlyHint: true
  • mercoa_list_entity_usersList the users belonging to an entity (approvers, admins, etc.).No findings

    Why it is in this group

    • The name "mercoa_list_entity_users" says "list": a word for reading.
    Description, as the server wrote it
    List the users belonging to an entity (approvers, admins, etc.). GET /entity/{entityId}/users.

    Annotations the server declares

    • title: List entity users
    • readOnlyHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.16.3. Values in angle brackets are yours to fill in.

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

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__mercoa__mercoa_find_entities",
      "mcp__mercoa__mercoa_get_entity",
      "mcp__mercoa__mercoa_get_entity_events",
      "mcp__mercoa__mercoa_get_entity_invoice_metrics",
      "mcp__mercoa__mercoa_list_entity_payment_methods",
      "mcp__mercoa__mercoa_get_payment_method",
      "mcp__mercoa__mercoa_list_entity_users",
      "mcp__mercoa__mercoa_find_invoices",
      "mcp__mercoa__mercoa_get_invoice",
      "mcp__mercoa__mercoa_get_invoice_events",
      "mcp__mercoa__mercoa_find_transactions",
      "mcp__mercoa__mercoa_get_transaction",
      "mcp__mercoa__mercoa_get_organization"
    ],
    "ask": [],
    "deny": [
      "mcp__mercoa__mercoa_create_entity",
      "mcp__mercoa__mercoa_create_invoice",
      "mcp__mercoa__mercoa_update_invoice",
      "mcp__mercoa__mercoa_add_invoice_comment"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as mercoa. Review it before you use it.