SmartBill MCP
Read and create invoices, estimates, and manage clients and stock in SmartBill Cloud
Connects to SmartBill Cloud accounting software. Muse can list and retrieve invoices, estimates, clients, suppliers, products and stock; create and issue invoices and estimates; record payments; and send documents by email.
Try asking Muse: "Create an invoice for a client with three products and mark it as issued"
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Source: Found in the official MCP Registry (io.usefulapi/smartbill) · First listed October 28, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 11 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.
musedirectory.ai is not part of Meta. More about how Muse handles your information
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://smartbill.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
SmartBill MCP 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://smartbill.usefulapi.io/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 30ms. 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 · 23
smartbill_list_seriesList the document series configured in SmartBill Cloud with their next number. Invoice and proforma tools need a series name from here. type: f = invoice series, p = proforma, c = receipt (chitanta); omit for all. GET /series.smartbill_list_taxesList the VAT rates configured in the account (name and percentage). Use the name as tax_name and the percentage as tax_percentage on document lines. Works without a V3 token. GET /tax.smartbill_get_stockStock quantities per warehouse as of a date (needs the SmartBill stock module). Optional filters: warehouse_name (case-sensitive), product_name, product_code. No filters = all products in all warehouses. GET /stocks.smartbill_get_invoice_payment_statusWhether an invoice is paid and how much remains: invoiceTotalAmount, paidAmount, unpaidAmount and the paid flag. GET /invoice/paymentstatus.smartbill_get_estimate_invoicesWhether a proforma was invoiced and the invoices (series, number) made from it. A draft invoice shows with an empty number. GET /estimate/invoices.smartbill_list_clientsList clients from the SmartBill client list, optionally filtered by name (partial, case-insensitive), internal code (exact) or CIF (exact). Needs the API V3 token. Cursor paged: pass the reply's next_args as the next call's arguments. GET /v3/companies/{cif}/clients.smartbill_get_clientOne client by V3 id (cus_...): name, CIF, address, bank, contact, VAT-payer flag and delivery addresses. Needs the API V3 token. GET /v3/companies/{cif}/clients/{id}.smartbill_list_suppliersList suppliers, optionally filtered by name (partial), internal code (exact) or CIF (exact). Needs the API V3 token. Cursor paged: pass the reply's next_args as the next call's arguments. GET /v3/companies/{cif}/suppliers.smartbill_get_supplierOne supplier by V3 id (sup_...). Needs the API V3 token. GET /v3/companies/{cif}/suppliers/{id}.smartbill_list_productsList the product and service catalog (price, unit, VAT rate, currency), optionally filtered by name (whole-word match) or internal code (exact). Needs the API V3 token. Cursor paged: pass the reply's next_args as the next call's arguments. GET /v3/companies/{cif}/products.smartbill_get_productOne product or service by V3 id (prod_...). Needs the API V3 token. GET /v3/companies/{cif}/products/{id}.smartbill_list_warehousesList warehouses (name, type en gros / en detail, keeper, address). Needs the API V3 token. Cursor paged: pass the reply's next_args as the next call's arguments. GET /v3/companies/{cif}/warehouses.smartbill_list_vat_ratesList VAT rates with ids, name, percentage and reverse-charge flag. Filter by name (partial) or percentage (exact). Needs the API V3 token (smartbill_list_taxes does the same without it). Cursor paged: pass the reply's next_args as the next call's arguments. GET /v3/companies/{cifsmartbill_create_invoiceCreate an invoice for a client with product/service lines. By default it is saved as a DRAFT (no number) for review in SmartBill Cloud. With draft=false the invoice is ISSUED: it takes the next number of the series, cannot be deleted or edited through this server, can only be cansmartbill_create_invoice_from_estimateCreate an invoice from an existing proforma (client and lines are copied from it). Default is a DRAFT; with draft=false the invoice is ISSUED with the next number of the series and may be transmitted to e-Factura / ANAF. Stock is not discharged. POST /invoice/v2 (useEstimateDetaismartbill_create_estimateCreate a proforma (estimate) for a client with product/service lines. Default is a DRAFT (no number); with draft=false it takes the next number of the proforma series. A proforma is not a fiscal invoice. Returns series, number, documentId and links. POST /estimate/v2.smartbill_reverse_invoiceISSUE a storno (credit) invoice that reverses an issued invoice. It takes the next number, an invoice can be reversed only once, and the storno cannot be undone; it may be transmitted to e-Factura / ANAF. Confirm the exact series and number with the user first. POST /invoice/revesmartbill_cancel_invoiceCancel an existing invoice (it stays in the books as cancelled; smartbill_restore_invoice undoes it). Changes the document's fiscal status, so confirm with the user. PUT /invoice/cancel.smartbill_restore_invoiceRestore an invoice that was cancelled, making it active again. PUT /invoice/restore.smartbill_cancel_estimateCancel an existing proforma (smartbill_restore_estimate undoes it). PUT /estimate/cancel.smartbill_restore_estimateRestore a proforma that was cancelled. PUT /estimate/restore.smartbill_record_invoice_paymentRecord a collection (incasare) against one or more issued invoices; client and amount are taken from the invoices. With value (single invoice only) a partial payment is recorded. type Chitanta issues a numbered RECEIPT on receipt_series (cannot be undone from this server); the otsmartbill_send_documentSend an issued invoice or proforma by email from SmartBill. This EMAILS A THIRD PARTY and cannot be recalled. Without `to` it goes to the client's email on the document; without subject/body_text the account's email template is used. Confirm the recipient with the user first. POSRecent checks
Link
https://smartbill.usefulapi.io/mcpQuestions about SmartBill MCP in Muse
How do I connect SmartBill MCP to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use SmartBill MCP to help me. It is a free service with an MCP server at https://smartbill.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 SmartBill MCP working right now?
At the last check (October 29, 2026, 11:45 UTC) the endpoint was working, answering in 30ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is SmartBill MCP 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 SmartBill MCP do in Muse?
It exposes 23 tools, including smartbill_list_series, smartbill_list_taxes, smartbill_get_stock, smartbill_get_invoice_payment_status. For example, you could ask Muse: "Create an invoice for a client with three products and mark it as issued"
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