io.usefulapi/fastbill

up checked 2026-11-11T09:38:05.454Z

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Publisher-provided title

FastBill MCP by usefulapi

Publisher-provided description

Read FastBill customers, invoices, estimates, expenses; create customers, invoices, projects.

Summary by lookupd

Reads and writes FastBill accounting data: customers, invoices, estimates, expenses, projects and time entries, with invoice finalization…

Install

Claude Code, remote (streamable-http)

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

Codex, remote (streamable-http)

codex mcp add fastbill --url https://fastbill.usefulapi.io/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "fastbill": {
      "url": "https://fastbill.usefulapi.io/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (22 tools)

Publisher-provided text

• fastbill_list_customers List customers (name, address, e-mail, VAT id, payment terms and bank details as stored in FastBill). Filter by search term (organization, name, address, zip, e
• fastbill_get_customer One customer by FastBill customer id. customer.get with CUSTOMER_ID.
• fastbill_list_contacts List contact persons of customers (name, position, e-mail, phone). Filter by customer, search term or contact id. contact.get.
• fastbill_list_invoices List outgoing invoices, drafts and credit notes with totals, state (draft, unpaid, overdue, paid, canceled), dates and line items. Filter by customer, number, t
• fastbill_get_invoice One invoice by FastBill invoice id, with all line items, VAT, payments and the document URL. invoice.get with INVOICE_ID.
• fastbill_list_recurring_invoices List recurring invoice templates (customer, interval data, totals, items). recurring.get.
• fastbill_list_estimates List estimates (quotes) with state (a created, b sent, c negotiation, d accepted, e rejected, f invoiced), totals and items. estimate.get.
• fastbill_list_expenses List expense entries (supplier, category, net/VAT/gross, dates, document URL). Filter by invoice number or date ranges. expense.get.
• fastbill_list_revenues List revenue entries (income booked in FastBill: customer, totals, dates, payments). Takes the same filters as invoices. revenue.get.
• fastbill_list_articles List products and services (article number, type, title, unit price, VAT, unit). article.get.
• fastbill_list_projects List projects (name, customer, hourly rate, VAT, start/end date). project.get.
• fastbill_list_time_entries List work time entries (customer, project, date, minutes, billable minutes, comment, invoice). Without filters FastBill returns the latest entries of the curren
• fastbill_list_templates List the invoice/estimate templates (template id, name, hash). Use a template id with the create tools. Ids change whenever a template is edited. template.get.
• fastbill_create_customer WRITE: create a customer. customer_type is required; a business needs organization, a consumer needs last_name. Bank details are not accepted by this tool. Fast
• fastbill_update_customer WRITE: update fields of an existing customer; only the fields you pass change. Bank details are not accepted by this tool. customer.update.
• fastbill_create_invoice WRITE: create an invoice for a customer from line items. FastBill stores it as a draft; it gets its number and becomes final only with fastbill_complete_invoice
• fastbill_complete_invoice WRITE, NOT REVERSIBLE: turn a draft invoice into a final invoice. FastBill assigns the invoice number and PDF; a final invoice can no longer be edited (it can o
• fastbill_set_invoice_paid WRITE: mark a final invoice as paid, with the payment date and method. invoice.setpaid.
• fastbill_create_estimate WRITE: create an estimate (quote) for a customer from line items. It is not sent. estimate.create.
• fastbill_create_article WRITE: create a product or service (article number, title and unit price are required). article.create.
• fastbill_create_project WRITE: create a project for a customer (name and customer are required). project.create.
• fastbill_create_time_entry WRITE: book a work time entry on a project (customer, project and start time are required). time.create.

Details

• Version: 1.13.3
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 452 ms
• First indexed: 2026-11-01T10:04:33.194Z
• Last seen in registry: 2026-11-11T00:17:25.650Z
• Repository: https://github.com/m190/usefulapi-mcp
• Website: https://usefulapi.io/fastbill/

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