Invoiced MCP
Read and manage customers, invoices, payments and subscriptions in Invoiced
Connect to Invoiced to view customers, invoices, payments, credit notes, estimates and subscriptions. Create customers, draft invoices, and add internal notes and collection tasks. Requires an Invoiced account.
Try asking Muse: "Show me all unpaid invoices from the last 30 days and which customers have overdue balances"
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Source: Found in the official MCP Registry (io.usefulapi/invoiced) · First listed October 28, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 41 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://invoiced.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
Invoiced 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://invoiced.usefulapi.io/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 16ms. 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 · 27
invoiced_list_customersList customers (accounts receivable debtors): name, number, email, payment terms, currency, autopay and chasing settings, owner. Filter by open balance, saved payment method, update time or any exact-match column. GET /customers.invoiced_get_customerOne customer by id: contact details, address, terms, currency, autopay, chasing cadence, credit hold/limit, parent customer, metadata. GET /customers/{id}.invoiced_get_customer_balanceA customer's current balance: total outstanding, past due, and available credit, in the customer's currency (or `currency`). GET /customers/{id}/balance.invoiced_list_contactsList the contacts of one customer: name, title, email, phone, whether primary (copied on communications) and SMS-enabled. GET /customers/{id}/contacts.invoiced_list_invoicesList invoices with number, customer, status (draft, not_sent, sent, viewed, past_due, pending, paid, voided), dates, totals, balance and line items. Filter by customer, paid flag, invoice date range, update time or any exact-match column. GET /invoices.invoiced_get_invoiceOne invoice by id: status, dates, payment terms, totals, balance, line items, discounts, taxes, ship-to, payment and PDF links. `expand` replaces ids with full objects (e.g. customer). GET /invoices/{id}.invoiced_get_invoice_payment_planThe payment plan (installments with dates, amounts and balances, and approval status) attached to an invoice. Errors with 404 when the invoice has none. GET /invoices/{id}/payment_plan.invoiced_list_paymentsList payments received: customer, date, amount, unapplied balance, method (check, wire, ACH, card, ...), reference, whether matched or voided. Read only. GET /payments.invoiced_get_paymentOne payment by id, including which invoices and credit notes it was applied to (`applied_to`). GET /payments/{id}?include=applied_to.invoiced_list_credit_notesList credit notes: customer, status (draft, open, paid, closed, voided), totals, remaining balance, line items. GET /credit_notes.invoiced_get_credit_noteOne credit note by id with line items, totals and balance. GET /credit_notes/{id}.invoiced_list_estimatesList estimates (quotes): customer, status (draft, not_sent, sent, approved, invoiced, declined, voided), expiration date, deposit, totals, resulting invoice. GET /estimates.invoiced_get_estimateOne estimate by id with line items, totals, deposit and approval state. GET /estimates/{id}.invoiced_list_itemsList the item catalog (products and services): id, name, currency, unit cost, type, taxable. Use item ids as `catalog_item` when creating a draft invoice. GET /items.invoiced_get_itemOne catalog item by its id (a string such as "delivery"). GET /items/{id}.invoiced_list_tax_ratesList tax rates: id, name, value, whether a percentage, whether inclusive, currency. GET /tax_rates.invoiced_list_plansList subscription plans: id, name, currency, amount, pricing mode, billing interval, tiers. GET /plans.invoiced_get_planOne subscription plan by its id (a string). GET /plans/{id}.invoiced_list_subscriptionsList recurring subscriptions: customer, plan, quantity, billing period, status (not_started, active, past_due, finished, canceled), recurring total and MRR, contract renewal. GET /subscriptions.invoiced_get_subscriptionOne subscription by id with plan, add-ons, billing period, contract terms, recurring total and MRR. GET /subscriptions/{id}.invoiced_list_notesList collection notes, newest first, for one customer or one invoice (give exactly one), or all notes when neither is given. GET /customers/{id}/notes, /invoices/{id}/notes or /notes.invoiced_list_tasksList collection tasks (call, letter, email, review): name, action, customer, assignee, due date, whether complete. GET /tasks.invoiced_list_eventsThe activity feed, newest first: event type (such as invoice.paid, customer.created), time, the object it concerns and who did it. Optionally only the events of one object. GET /events.invoiced_create_customerWRITE: create a customer in Invoiced. Nothing is sent to anyone and no money moves. Name is required; Invoiced generates the customer number unless given. POST /customers.invoiced_create_draft_invoiceWRITE: create a DRAFT invoice for a customer. It is always created as a draft: it is not issued, not emailed, not charged and cannot trigger AutoPay until a person finalizes it in Invoiced. At least one line item is required. POST /invoices with draft=true.invoiced_add_noteWRITE: add an internal note to a customer or an invoice (give exactly one). Notes are internal; nothing is sent. POST /notes.invoiced_create_taskWRITE: create a collection task for a customer (a reminder to call, write, email or review). Nothing is sent to the customer. POST /tasks.Recent checks
Link
https://invoiced.usefulapi.io/mcpQuestions about Invoiced MCP in Muse
How do I connect Invoiced MCP to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Invoiced MCP to help me. It is a free service with an MCP server at https://invoiced.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 Invoiced MCP working right now?
At the last check (October 29, 2026, 11:16 UTC) the endpoint was working, answering in 16ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is Invoiced 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 Invoiced MCP do in Muse?
It exposes 27 tools, including invoiced_list_customers, invoiced_get_customer, invoiced_get_customer_balance, invoiced_list_contacts. For example, you could ask Muse: "Show me all unpaid invoices from the last 30 days and which customers have overdue balances"
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