io.usefulapi由 usefulapi.io 发布官方发布者v1.12.4更新于 Nov 7, 2026
Read FastBill customers, invoices, estimates, expenses; create customers, invoices, projects.
发布方自己的服务：Ably MCP by usefulapi
托管式 FastBill 连接器，让助手读取客户、发票、报价、支出和项目，并创建或完成账单记录。
Web executable，通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。
把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体，或 SourceWeft 对话中。智能体会读取该服务器的安装指南，先向你展示发布者、端点和登录方式，经你同意后再把它添加到你的客户端。密钥不会写进任何命令。
阅读 https://sourceweft.com/mcp/io.usefulapi%2Ffastbill/install.md，并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前，先告诉我它的发布者、端点和登录方式，等我确认。不要把 API 密钥写进命令或我会提交的文件；问我密钥应从哪里获取。把它添加到你客户端的 mcpServers 配置中。
{
"mcpServers": {
"fastbill-by-usefulapi": {
"type": "http",
"url": "https://fastbill.usefulapi.io/mcp"
}
}
}Live endpoint: https://fastbill.usefulapi.io/mcp
https://fastbill.usefulapi.io/mcp.claude mcp add --transport http fastbill https://fastbill.usefulapi.io/mcp, then run /mcp to log in.Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your FastBill credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/fastbill/
On first connect you will paste your FastBill login e-mail and API key. They are validated, stored per-user, and scoped to you. No keys in config files.
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this server only. Subscribe with fastbill_upgrade (it returns a Stripe Checkout link). Cancel any time with fastbill_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running fastbill_upgrade before then undoes the cancel. Or write to [email protected].
MIT
来源：servers/fastbill/README.md，提交 4046075
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-mail or tags), customer number, country or city. customer.get.
citytermlimitoffsetcountry_codecustomer_numberGet customer
One customer by FastBill customer id. customer.get with CUSTOMER_ID.
customer_id必填List contacts
List contact persons of customers (name, position, e-mail, phone). Filter by customer, search term or contact id. contact.get.
termlimitoffsetcontact_idcustomer_idcustomer_numberList invoices
List outgoing invoices, drafts and credit notes with totals, state (draft, unpaid, overdue, paid, canceled), dates and line items. Filter by customer, number, type, date ranges (invoice date, due date, paid date, last update). invoice.get.
typelimitoffsetend_datestart_datecustomer_idend_due_dateend_paid_dateend_lastupdateinvoice_numberstart_due_datestart_paid_date另有 1 个Get invoice
One invoice by FastBill invoice id, with all line items, VAT, payments and the document URL. invoice.get with INVOICE_ID.
invoice_id必填List recurring invoices
List recurring invoice templates (customer, interval data, totals, items). recurring.get.
limitoffsetinvoice_idList estimates
List estimates (quotes) with state (a created, b sent, c negotiation, d accepted, e rejected, f invoiced), totals and items. estimate.get.
limitoffsetend_datestart_datecustomer_idestimate_idestimate_numberList expenses
List expense entries (supplier, category, net/VAT/gross, dates, document URL). Filter by invoice number or date ranges. expense.get.
limitoffsetend_dateinvoice_idstart_dateend_paid_dateinvoice_numberstart_paid_dateList revenues
List revenue entries (income booked in FastBill: customer, totals, dates, payments). Takes the same filters as invoices. revenue.get.
limitoffsetend_datestart_datecustomer_idend_paid_dateinvoice_numberstart_paid_dateList products
List products and services (article number, type, title, unit price, VAT, unit). article.get.
limitoffsetarticle_idarticle_numberList projects
List projects (name, customer, hourly rate, VAT, start/end date). project.get.
limitoffsetproject_idcustomer_idList time entries
List work time entries (customer, project, date, minutes, billable minutes, comment, invoice). Without filters FastBill returns the latest entries of the current month. time.get.
datelimitoffsettime_idend_dateproject_idstart_datecustomer_idList document 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.
limitoffsetCreate 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. FastBill does not check for duplicates, so search with fastbill_list_customers first. customer.create.
citytagsemailphonemobilevat_idaddresswebsitezipcodepositionaddress_2last_name另有 10 个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.
citytagsemailphonemobilevat_idaddresswebsitezipcodepositionaddress_2last_name另有 11 个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, and it is never sent by this tool. Check the result with fastbill_get_invoice. invoice.create.
items必填is_grossvat_caseintrotextcustomer_id必填template_idinvoice_datecurrency_codedelivery_dateinvoice_titlediscount_percentcash_discount_days另有 5 个Finalize 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 only be canceled in FastBill). Nothing is sent to the customer. Only call this after the user confirmed the draft. invoice.complete.
invoice_id必填Mark invoice paid
WRITE: mark a final invoice as paid, with the payment date and method. invoice.setpaid.
paid_dateinvoice_id必填payment_methodCreate estimate
WRITE: create an estimate (quote) for a customer from line items. It is not sent. estimate.create.
items必填is_grossintrotextcustomer_id必填template_idcurrency_codeestimate_datediscount_percentCreate product
WRITE: create a product or service (article number, title and unit price are required). article.create.
tagstypeunittitle必填is_grossunit_price必填descriptionvat_percentcurrency_codearticle_number必填Create project
WRITE: create a project for a customer (name and customer are required). project.create.
end_datehour_pricestart_datecustomer_id必填vat_percentproject_name必填currency_codeCreate time entry
WRITE: book a work time entry on a project (customer, project and start time are required). time.create.
datecommentminutesend_timearticle_idproject_id必填start_time必填customer_id必填billable_minutes已满足适用检查项的 100%
该评分衡量此收录条目的完整程度，依据注册中心条目、端点与公开来源计算得出。它不是对服务器本身的评价，也不表示服务器安全或当前可用：可连通性是带日期的检查结果，评分也不包含安装量或用户评价。
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{ "mcpServers": { "fastbill": { "url": "https://fastbill.usefulapi.io/mcp" } }}