io.usefulapi由 usefulapi.io 发布官方发布者v1.23.5更新于 Nov 8, 2026
Read Billy invoices, bills, contacts, products and postings; create contacts and draft invoices.
发布方自己的服务：Ably MCP by usefulapi
Billy MCP by usefulapi 的托管 MCP 服务（billy.usefulapi.io），由 usefulapi.io 发布；无需登录；Streamable HTTP；15 个工具。
暂无 AI 概览：以下信息来自注册中心条目和服务本身。
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%2Fbilly/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": {
"billy-by-usefulapi": {
"type": "http",
"url": "https://billy.usefulapi.io/mcp"
}
}
}Use Billy from Claude, Cursor, or any MCP client — invoices, bills, contacts, products, accounts, bank lines and postings, plus contacts and draft invoices. Hosted, no local install: connect with your own Billy credentials.
Live endpoint: https://billy.usefulapi.io/mcp · Homepage: https://usefulapi.io/billy
https://billy.usefulapi.io/mcp.claude mcp add --transport http billy https://billy.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 Billy credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/billy/
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 billy_upgrade (it returns a Stripe Checkout link). Cancel any time with billy_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running billy_upgrade before then undoes the cancel. Or write to [email protected].
MIT © usefulapi. Not affiliated with or endorsed by Billy.
来源：servers/billy/README.md，提交 4046075
Get the company
The Billy company the access token belongs to: id, name, address, registration (CVR) number, base currency, VAT settings, fiscal year, default payment terms, invoice numbering, default accounts. Good first call. GET /organization.
无需输入参数。
List contacts
List customers and suppliers: name, type, address, CVR/registration number, EAN, payment terms, customer/supplier flags. The API has no documented search filter, so `search` is applied to the returned page only (case-insensitive on name, contact number and registration number); page on with next_page to look further. Paged. GET /contacts.
pagesearchpage_sizeGet a contact
One contact by id, with its contact persons (names and e-mail addresses). GET /contacts/{id}.
id必填List invoices
List sales invoices and credit notes (newest first by default): number, date, due date, state (draft/approved/voided), amount, tax, balance, isPaid, contactId, currency. Filter by state, customer, number, date, period, paid status or free text. Paged. GET /invoices.
qpagestateis_paidpage_sizecontact_idinvoice_nomax_due_datemin_due_datesort_propertymax_entry_datemin_entry_date另有 2 个Get an invoice
One invoice by id with its lines (product, description, quantity, unit price, amount, tax) and its payment associations. GET /invoices/{id}.
id必填List bills (supplier invoices)
List bills (purchase invoices from suppliers): supplier, dates, state (draft/approved/voided), amount, balance, isPaid, supplier invoice number. Filter by state, supplier, dates or paid status. Paged. GET /bills.
qpagestateis_paidpage_sizecontact_idmax_due_datemin_due_datesort_propertymax_entry_datemin_entry_datesort_direction另有 1 个Get a bill
One supplier bill by id with its lines. GET /bills/{id}.
id必填List products
List products and services usable as invoice lines: name, product number, description, sales account, archived flag. The API has no documented search filter, so `search` is applied to the returned page only (name, productNo). Paged. GET /products.
pagesearchpage_sizeGet a product
One product by id with its unit prices per currency. GET /products/{id}.
id必填List accounts (chart of accounts)
The chart of accounts: account number, name, group, nature, VAT rate, bank-account flag and bank details (IBAN, bank name) of bank accounts. With is_bank_account=true this lists the bank accounts whose ids billy_list_bank_lines needs. Paged. GET /accounts.
pagepage_sizeis_bank_accountList tax (VAT) rates
The company's VAT rates: name, rate (as a fraction, 0.25 = 25 percent), whether it applies to sales or purchases, active flag. Paged. GET /taxRates.
pagepage_sizeList bank lines
List the bank-statement lines of ONE bank account (read only; nothing is matched or reconciled): date, description, amount, side (debit/credit), reconciled flag, receipt state. Get the account id from billy_list_accounts with is_bank_account=true. Paged. GET /bankLines.
qpagesidestatuspage_sizeaccount_id必填max_amountmin_amountis_reconciledreceipt_statesort_propertymax_entry_date另有 3 个List ledger postings
List ledger postings (the bookkeeping entries): date, text, account, amount, side (debit/credit), currency, voided flag. Filter by account, date or period. Read only. Paged. GET /postings.
qpageis_voidedpage_sizeaccount_idmax_entry_datemin_entry_dateentry_date_periodCreate a contact
WRITE: create ONE new contact (customer and/or supplier) in the company's Billy account. It does not check for duplicates (call billy_list_contacts first) and nothing is sent to the contact. Not idempotent: a repeat call creates a second contact. POST /contacts.
eancityname必填typeemailphonestreetzipcodecontact_nocountry_idis_customeris_supplier另有 1 个Create a draft invoice
WRITE: create ONE invoice in the DRAFT state for an existing contact. The invoice is NOT approved, booked, numbered into the ledger or sent: the user reviews it in Billy and approves and sends it there. The invoice number is assigned by Billy. No payment is created. Not idempotent: a repeat call creates a second draft. POST /invoices with state=draft.
lines必填tax_modecontact_id必填entry_datecurrency_idcontact_message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": { "billy": { "url": "https://billy.usefulapi.io/mcp" } }}