io.usefulapi由 usefulapi.io 發布官方發布者v1.23.5更新於 Nov 8, 2026
Read Billy invoices, bills, contacts, products and postings; create contacts and draft invoices.
發布方自己的服務：Ably MCP by usefulapi
Billy MCP by usefulapi 的託管 MCP 服務（billy.usefulapi.io），由 usefulapi.io 發布；無需登入；Streamable HTTP；15 個工具。
暫無 AI 概覽：以下資訊來自註冊中心條目和服務本身。
Web executable，透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。
把這段提示詞貼上到 Claude Code、Codex、Cursor 等代理程式，或 SourceWeft 對話中。代理程式會讀取該伺服器的安裝指南，先向你展示發布者、端點和登入方式，經你同意後再把它新增到你的客戶端。金鑰不會寫進任何命令。
閱讀 https://sourceweft.com/mcp/io.usefulapi%2Fbilly/install.md，並按其中說明把這個 MCP 伺服器接入我的客戶端。修改任何設定之前，先告訴我它的發布者、端點和登入方式，等我確認。不要把 API 金鑰寫進命令或我會提交的檔案；問我金鑰應從哪裡取得。把它新增到你客戶端的 mcpServers 設定中。
{
"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.
來源：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.
無需輸入參數。
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 個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 個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 個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 個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已滿足適用檢查項的 100%
該評分衡量此收錄條目的完整程度，依據註冊中心條目、端點與公開來源計算得出。它不是對伺服器本身的評價，也不表示伺服器安全或目前可用：可連通性是帶日期的檢查結果，評分也不包含安裝量或使用者評價。
io.usefulapi官方發布者
MCP server for Ably — channel history, presence, occupancy, stats, publish, and app management.
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{ "mcpServers": { "billy": { "url": "https://billy.usefulapi.io/mcp" } }}