Merit Aktiva
Read and manage invoices, customers, vendors, payments and financial reports from Merit Aktiva accounting software.
Connects to Merit Aktiva accounting system to retrieve sales and purchase invoices, customer and vendor data, payments, general ledger entries, and financial reports including income statements and balance sheets. Supports creating new customer records.
Try asking Muse: "Show me all unpaid customer invoices from the last month and which ones are overdue."
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Source: Found in the official MCP Registry (io.usefulapi/merit-aktiva) · First listed October 29, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 57 min ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
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How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://merit-aktiva.usefulapi.io/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Also use it in ChatGPT or Claude
Merit Aktiva is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
Add it to ChatGPT
- 1
Open ChatGPT settings
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
- 2
Turn on developer mode
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
- 3
Create the connector
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
- 4
Use it in a chat
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
Add it to Claude
- 1
Open Claude settings
In Claude, open Settings, then Connectors.
- 2
Add a custom connector
Choose Add custom connector, give it a name, and paste the link.
- 3
Connect and use it
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://merit-aktiva.usefulapi.io/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 19ms. Worked in 100% of checks over 30 days.
Screening · October 29, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 26
merit_list_sales_invoicesList sales invoices (header level: number, customer, dates, totals, paid flag) of a period. The period may span at most 3 months (Merit limit); for longer spans make several calls. Use merit_get_sales_invoice for the lines. POST /api/v2/getinvoices.merit_search_sales_invoicesFind sales invoices by invoice number, customer name or customer id (give at least one). POST /api/v2/getinvoices2.merit_get_sales_invoiceOne sales invoice in full: header, lines (items, quantities, VAT, accounts), payments and dimension allocations. The PDF attachment is never requested. POST /api/v2/getinvoice.merit_list_purchase_invoicesList purchase invoices (vendor bills) of a period: bill number, vendor, dates, totals, paid flag. The period may span at most 3 months (Merit limit); for longer spans make several calls. POST /api/v2/getpurchorders.merit_get_purchase_invoiceOne purchase invoice in full: header, lines, payments. The attachment is never requested. POST /api/v2/getpurchorder.merit_list_customersSearch customers by name (partial match), registry number or VAT number (exact), id, or changed since a date. At least one filter is required: Merit cannot return the whole customer list in one reply. POST /api/v1/getcustomers.merit_list_vendorsSearch vendors (suppliers) by name (partial match), registry number or VAT number (exact), id, or changed since a date. At least one filter is required: Merit cannot return the whole vendor list in one reply. POST /api/v1/getvendors.merit_list_itemsList items, services and stock articles with price, unit, VAT and accounts. Optional filters: code or description (partial), type, id. With location_code the reply adds stock quantity and cost of that warehouse. POST /api/v1/getitems.merit_list_accountsThe general ledger chart of accounts (code, names, VAT, parent flag, active flag). GET /api/v2/accounts.merit_list_taxesAll VAT rates of the company (TaxId, code, name, percent, active flag). The TaxId is what invoice rows refer to. GET /api/v2/taxes.merit_list_departmentsDepartments (code, name, active flag). GET /api/v2/departments.merit_list_banksThe company's bank and cash accounts (BankId, name, IBAN, currency, ledger account). BankId feeds the payment tools. GET /api/v2/banks.merit_list_financial_yearsAccounting periods (financial years) with start, end and active flag. POST /api/v2/getaccperiods.merit_list_dimensionsAccounting dimensions and their values (DimId, name, value code, expiry). all_values = true also lists expired values. POST /api/v2/getdimensions.merit_list_payment_typesPayment methods and sources (cash, banks, reporting entities, ledger accounts) usable for purchases, expense reports or sales. POST /api/v2/getpaymenttypes.merit_list_paymentsList payments (customer and vendor receipts and payouts) of a period, with the documents they paid. The period may span at most 3 months (Merit limit); for longer spans make several calls. POST /api/v2/getpayments.merit_list_bank_paymentsList the income payments (money received) or expense payments (money paid out) booked on one bank account for a document-date period, with the documents each paid. The period may span at most 3 months (Merit limit); for longer spans make several calls. GET /api/v2/Banks/{bankId}/merit_list_gl_batchesList general ledger batches (journal entries, also those created from invoices and payments) of a period: batch code, number, date, total. The period may span at most 3 months (Merit limit); for longer spans make several calls. POST /api/v1/getglbatches.merit_get_gl_batchOne general ledger batch with all its debit and credit lines (account, memo, department, tax, amounts). The attachment is never requested. POST /api/v1/getglbatch.merit_customer_debts_reportOpen customer receivables: for each unpaid document the customer, date, due date, total, paid and unpaid amount. Give a customer name (empty string = all customers) or a customer id; over_due_days keeps only documents overdue by at least that many days. POST /api/v1/getcustdebtremerit_customer_payments_reportCustomer invoices with their unpaid amount and overdue flag for a period, for one customer (name or id). Only the FIRST page is returned: if has_more is true, narrow the period or the customer (the continuation endpoint is not supported). POST /api/v2/getcustpaymrep.merit_income_statementThe profit and loss report: one row per report line, with balances for per_count months counting back from end_date (newest first). Optional department filter. POST /api/v1/getprofitrep.merit_balance_sheetThe balance sheet: one row per report line (assets, liabilities, equity) with balances for per_count months counting back from end_date. POST /api/v1/getbalancerep.merit_sales_reportSales totals for a period, grouped by invoice, customer, item or country. POST /api/v2/getsalesrep.merit_purchase_reportPurchase totals for a period, grouped by invoice, vendor, item or fixed asset. POST /api/v2/getpurchrep.merit_create_customerWRITE: creates ONE new customer record in the Merit company (name must be unique; an existing customer is never overwritten, Merit answers with an error). Nothing is invoiced, sent or paid. In Estonia not_td_customer must be true for private persons and foreign companies; city isRecent checks
Link
https://merit-aktiva.usefulapi.io/mcpQuestions about Merit Aktiva in Muse
How do I connect Merit Aktiva to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Merit Aktiva to help me. It is a free service with an MCP server at https://merit-aktiva.usefulapi.io/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
Is Merit Aktiva working right now?
At the last check (October 29, 2026, 11:00 UTC) the endpoint was working, answering in 19ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is Merit Aktiva safe to connect to Muse?
It was screened on October 29, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can Merit Aktiva do in Muse?
It exposes 26 tools, including merit_list_sales_invoices, merit_search_sales_invoices, merit_get_sales_invoice, merit_list_purchase_invoices. For example, you could ask Muse: "Show me all unpaid customer invoices from the last month and which ones are overdue."
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