Read clients, projects, time entries, expenses, invoices and payments from Bill4Time
Connects to Bill4Time, a time and billing platform for law firms and professional services. Muse can retrieve client information, project details, time entries, expenses, invoices, payments, users and contacts to help manage billing workflows.
Try asking Muse: "Show me all unpaid invoices from the past month for my law firm"
Source: Found in the official MCP Registry (io.usefulapi/bill4time) · First listed October 28, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 8 min ago.
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
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://bill4time.usefulapi.io/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Bill4Time is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
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.
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
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
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://bill4time.usefulapi.io/mcpResponse time at the last check: 32ms. Worked in 100% of checks over 30 days.
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.
bill4time_list_clientsList clients (id, name, billing name, email, phone, city, account manager, status, billing rate type, currency). Filter by status, exact client name, id or creation date. Street addresses and tax ids are not returned. GET /clients.bill4time_list_projectsList projects (matters): id, name, client, status, billing method, rate overrides, assigned user, created/closed/due dates. Filter by status, billing method, client, id or creation date. GET /projects.bill4time_list_time_entriesList time entries: client, project, user, entry date, billable and labor time, billable amount, rate, activity, ABA litigation code, billing status, invoice id, public description. Filter by client, project, user, invoice, entry date range or billing status. Private notes and conbill4time_list_expensesList expenses: client, project, user, expense date, cost and sell price, quantity, type, billing status, invoice id, public description. Filter by client, project, user, invoice, expense date range, billing status or exact expense type. Private notes are not returned unless inclubill4time_list_invoicesList invoices: client, project, invoice date, status (prebill or finalized), paid status, totals (invoice, labor, expense, late fee), terms and notes. Filter by status, paid status, client, project, id or invoice date range. GET /invoices.bill4time_list_paymentsList payments: client, project, amount, date, type, method, public note. Filter by client, project, id or payment date range. Check numbers are not returned; the private note only with include_private_notes. GET /payments.bill4time_list_usersList the firm's users: name, email, user type, status, department, position, billing and overtime rate. Birth dates, addresses, phone numbers and contractor pay rates are not returned. Filter by status or id. GET /users.bill4time_list_contactsList contacts: name, email, work and mobile phone, city, status, creation date. Filter by status, id or creation date. Street addresses, home phone and notes are not returned. GET /contacts.https://bill4time.usefulapi.io/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Bill4Time to help me. It is a free service with an MCP server at https://bill4time.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.
At the last check (October 29, 2026, 11:45 UTC) the endpoint was working, answering in 32ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
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.
It exposes 8 tools, including bill4time_list_clients, bill4time_list_projects, bill4time_list_time_entries, bill4time_list_expenses. For example, you could ask Muse: "Show me all unpaid invoices from the past month for my law firm"
This listing was added from public sources (Found in the official MCP Registry (io.usefulapi/bill4time)). If you build Bill4Time, claim it to correct the details and get your badge.
Paste this on your site or README. It always shows the latest check.
<a href="https://musedirectory.ai/connector/bill4time"><img src="https://musedirectory.ai/badge/bill4time.svg" alt="Bill4Time on musedirectory.ai" width="236" height="40"></a>