Integration · Accounting

Connect Claude & ChatGPT to Sinao

Ask your AI which invoices are still unpaid, what a supplier invoice says, or to draft a quote in Sinao. It can create and update contacts, organizations, products, quotes and draft invoices, turn a quote into an invoice, finalize documents, issue credit notes and email invoices and quotes to customers. Invoicing questions get answered without clicking through Sinao.

Connect Sinao free

Free plan, no credit card. Takes about a minute.

Try asking

“Which sales invoices are still unpaid?”
The AI searches your sales invoices with a status filter and lists the unpaid ones with customer and amount.
“Create a quote for Boulangerie Martin: 3 days of consulting at 600 EUR excl. VAT, 20% VAT.”
It finds the organization and creates a draft quote with the line, quantity, price and VAT rate. The draft can still be edited.
“Turn quote DE-0042 into an invoice.”
It finds the quote and creates an invoice from it with the same lines.

What your AI can do

Invoices and quotes

Create and update draft invoices and quotes, convert quotes to invoices, finalize them, mark invoices paid and issue credit notes.

Contacts and products

Search, create and update organizations, contacts and products, with legal details, VAT rates and prices.

Purchases and email

Search and read supplier invoices and expenses, and email invoices, quotes or attachments to customers.

“Finalize invoice 318 and email it to the customer.”
It finalizes the draft so it gets its definitive number, then emails the invoice to the address you confirm. A finalized invoice can no longer be edited.
“Invoice 297 was wrong. Cancel it.”
It creates a credit note (avoir) that cancels the finalized invoice.
“Which supplier invoices are due this month?”
It searches your purchases and lists supplier invoices with amounts, supplier and due date.

158 tools for Sinao

These tools are switched on when you connect. You can switch any of them off, or require your approval before it runs.

attach_invoice_to_appChanges dataAttach a invoice (invoice id). API summary: Attach a file at an invoice.
attach_invoice_to_app_attachDeletesAttach a invoice (invoice id). Destructive action; may require approval. API summary: Detach a file at an invoice.
attach_order_to_appChanges dataAttach a order (purchase id). API summary: Attach a file at a purchase.
attach_order_to_app_attachDeletesAttach a order (purchase id). Destructive action; may require approval. API summary: Detach a file at a purchase.
attach_payment_to_appChanges dataAttach a payment (transaction id). API summary: Attach a file.
attach_payment_to_app_attachDeletesAttach a payment (transaction id). Destructive action; may require approval. API summary: Detach a file.
attach_product_to_appChanges dataAttach a product (product id). API summary: Attach a file.
attach_product_to_app_attachDeletesAttach a product (product id). Destructive action; may require approval. API summary: Detach a file.
attach_quote_to_appChanges dataAttach a quote (quote id). API summary: Attach a file at a quote.
attach_quote_to_app_attachDeletesAttach a quote (quote id). Destructive action; may require approval. API summary: Detach a file at a quote.
attach_relationship_to_appChanges dataAttach a relationship (relationship id). API summary: Attach a file.
attach_relationship_to_app_attachDeletesAttach a relationship (relationship id). Destructive action; may require approval. API summary: Detach a file.
convert_quote_to_invoiceChanges dataCreate an invoice from a quote by `quote_id`.
create_app_accountChanges dataCreate a new account for a app. Search accounts first to avoid duplicates. API summary: Create a Account.
create_app_bankdetailChanges dataCreate a new bankdetail for a app. Search bankdetails first to avoid duplicates. API summary: Create a BankDetails.
create_app_cashflowsourceChanges dataCreate a new cashflowsource for a app. Search cashflowsources first to avoid duplicates. API summary: Create a CashflowSource.
create_app_categoryChanges dataCreate a new category for a app. Search categories first to avoid duplicates. API summary: Create a category.
create_app_documentChanges dataCreate a new document for a app. Required: type. Search documents first to avoid duplicates. API summary: Attach a file on an object.
create_app_exportChanges dataCreate a new export for a app. Required: until. Search exports first to avoid duplicates. API summary: Create a ExportEntity.
create_app_inventoryChanges dataCreate a new inventory for a app. Required: product id. Search inventories first to avoid duplicates. API summary: Create a stocks.
create_app_orderChanges dataCreate a new order for a app. Search orders first to avoid duplicates. API summary: Create a purchase.
create_app_paymentChanges dataCreate a new payment for a app. Required: cashflow source id, amount or received at. Search payments first to avoid duplicates. API summary: Create a Transaction.
create_app_payment_app_payments_reconciliation_reconcileChanges dataCreate a new payment for a app. Required: type, id or movements. Search payments first to avoid duplicates. API summary: Reconcile a transaction or a document.
create_app_sepamandateChanges dataCreate a new sepamandate for a app. Required: mandate id, signed at, iban or bic. Search sepamandates first to avoid duplicates. API summary: Create a SEPAMandate.
create_app_settingChanges dataCreate a new setting for a app. API summary: Update app config.
create_contactChanges dataCreate a contact (person) with lastname (required), firstname, civility and main establishment details (email, phone, address).
create_credit_noteChanges dataCreate a credit note (avoir) cancelling a finalized invoice by `invoice_id`.
create_directdebitChanges dataCreate a new directdebit. Required: invoices ids. API summary: Download sepa direct debit file.
create_freshChanges dataCreate a new fresh. Required: ids. API summary: Regenerate pdf and recalcul amounts of invoice.
create_fresh_app_documents_sales_quotes_freshChanges dataCreate a new fresh. Required: ids. API summary: Regenerate pdf and recalcul amounts of quote.
create_inventoryChanges dataCreate a new inventory. Required: quantity. Search inventories first to avoid duplicates. API summary: Consider part of the stock as back.
create_inventory_app_catalog_stocks_rental_exitChanges dataCreate a new inventory. Search inventories first to avoid duplicates. API summary: Consider part of the stock as rented.
create_invoiceChanges dataCreate a draft sales invoice: customer in contact_infos, lines in `content` (designation, quantity, amount in cents excl. tax, vat_percent), plus title, currency, payment_period and discount. Stays a draft until finalized.
create_invoice_2DeletesCreate a new invoice. Search invoices first to avoid duplicates. Destructive action; may require approval. API summary: Send emails.
create_invoice_app_documents_sales_quotes_invoicesChanges dataCreate a new invoice. Required: ids. Search invoices first to avoid duplicates. API summary: Create or update many quotes.
create_invoice_tagChanges dataCreate a new tag for a invoice. API summary: Add a tag on an invoice.
create_meChanges dataCreate a new me. API summary: Update current user.
create_or_update_many_invoicesVisible to othersCreate a new invoice. Required: data. Search invoices first to avoid duplicates. Has effects visible outside this system. API summary: Create or update many invoices.
create_or_update_many_purchasesVisible to othersCreate a new invoice. Required: data. Search invoices first to avoid duplicates. Has effects visible outside this system. API summary: Create or update many purchases.
create_or_update_many_quotesVisible to othersCreate a new invoice. Required: data. Search invoices first to avoid duplicates. Has effects visible outside this system. API summary: Create or update many quotes.
create_order_tagChanges dataCreate a new tag for a order. API summary: Add a tag on a purchase.
create_order_updatestatusChanges dataCreate a new updatestatus for a order. API summary: Update the status of an invoice.
create_organizationChanges dataCreate an organization (company contact) with name (required), legal details (national_id, vat_id, legal_form) and main establishment email, phone and address.
create_productChanges dataCreate a product or service with name (required), reference, description, amount (price excl. tax in cents), vat_percent and type.
create_productstock_inventoryChanges dataCreate a new inventory for a productstock. Search inventories first to avoid duplicates. API summary: Destruct a quantity of stock (forgotten, destructed, expirated stock...).
create_quoteChanges dataCreate a draft quote: customer in contact_infos, lines in `content` (designation, quantity, amount in cents excl. tax, vat_percent), title, currency, validity deadline and optional downpayment request.
create_quote_downpaymentChanges dataCreate a new downpayment for a quote. Required: percent. API summary: Transform the quote in a downpayment invoice.
create_quote_downpayment_1Changes dataCreate a new downpayment 1 for a quote. Required: percent. API summary: Copy of Transform the quote in a downpayment invoice.
create_quote_tagChanges dataCreate a new tag for a quote. API summary: Add a tag on an quote.
create_quote_updatestatusChanges dataCreate a new updatestatus for a quote. API summary: Update the status of a quote.
delete_app_accountDeletesPermanently delete a account by account id. Destructive action; may require approval. API summary: Remove a Account.
delete_app_bankdetailDeletesPermanently delete a bankdetail by bankdetail id. Destructive action; may require approval. API summary: Remove a BankDetails.
delete_app_cashflowsourceDeletesPermanently delete a cashflowsource by cashflowsource id. Destructive action; may require approval. API summary: Remove a CashflowSource.
delete_app_categoryDeletesPermanently delete a category by category id. Destructive action; may require approval. API summary: Remove a category.
delete_app_companyDeletesPermanently delete a company by company id. Destructive action; may require approval. API summary: Remove an organization.
delete_app_contactDeletesPermanently delete a contact by contact id. Destructive action; may require approval. API summary: Remove a person.
delete_app_documentDeletesPermanently delete a document by document id. Destructive action; may require approval. API summary: Detach a file from id.
delete_app_establishmentDeletesPermanently delete a establishment by establishment id. Destructive action; may require approval. API summary: Remove an establishment.
delete_app_exportDeletesPermanently delete a export by export id. Destructive action; may require approval. API summary: Remove a ExportEntity.
delete_app_inventoryDeletesPermanently delete a inventory by inventory id. Destructive action; may require approval. API summary: Remove a stocks.
delete_app_invoiceDeletesPermanently delete a invoice by invoice id. Destructive action; may require approval. API summary: Remove an invoice.
delete_app_orderDeletesPermanently delete a order by order id. Destructive action; may require approval. API summary: Remove a purchase.
delete_app_paymentDeletesPermanently delete a payment by payment id. Destructive action; may require approval. API summary: Remove a Transaction.
delete_app_paymentsMoves moneyPermanently delete a payment by app id. Financial or irreversible action; may require approval. API summary: Remove payments by an object.
delete_app_productDeletesPermanently delete a product by product id. Destructive action; may require approval. API summary: Remove a product.
delete_app_quoteDeletesPermanently delete a quote by quote id. Destructive action; may require approval. API summary: Remove a quote.
delete_app_sepamandateDeletesPermanently delete a sepamandate by sepamandate id. Destructive action; may require approval. API summary: Remove a SEPAMandate.
delete_invoice_tagsMoves moneyPermanently delete a tag by invoice id. Financial or irreversible action; may require approval. API summary: Delete a tag on an invoice.
delete_invoicesMoves moneyPermanently delete a invoice by app id. Financial or irreversible action; may require approval. API summary: Delete many purchases.
delete_order_tagsMoves moneyPermanently delete a tag by purchase id. Financial or irreversible action; may require approval. API summary: Delete a tag on a purchase.
delete_quote_tagsMoves moneyPermanently delete a tag by quote id. Financial or irreversible action; may require approval. API summary: Delete a tag on a quote.
download_exportDownload the document for a export. API summary: Download the export entity as zip.
download_invoiceDownload the document for a invoice. API summary: Download a list of invoices in pdf into a .zip file.
download_invoice_pdfDownload the pdf document for a invoice. API summary: Download the invoice as pdf.
download_quoteDownload the document for a quote. API summary: Download a list of quotes in pdf into a .zip file.
download_quote_pdfDownload the pdf document for a quote. API summary: Download the quote as pdf.
email_documentsVisible to othersEmail invoices, quotes or attachments to customers: `documents` (id and type invoice/quote/attachment), `recipients` emails, optional title, body, cc and bcc. Sends real emails immediately.
finalize_invoiceVisible to othersFinalize a draft invoice by `invoice_id`: it gets its definitive number and can no longer be edited (corrections then need a credit note). force_date moves the date forward if it is earlier than the last invoice.
finalize_quoteVisible to othersFinalize a draft quote by `quote_id` so it gets its definitive number and can be sent.
get_a_paymentGet one payment for a app by payment id. API summary: Get a payment.
get_appGet one app by app id. API summary: Get an app.
get_app_accountGet one account for a app by account id. API summary: Get a Account.
get_app_bankdetailGet one bankdetail for a app by bankdetail id. API summary: Get a BankDetails.
get_app_cashflowsourceGet one cashflowsource for a app by cashflowsource id. API summary: Get a CashflowSource.
get_app_categoryGet one category for a app by category id. API summary: Get a category.
get_app_documentGet one document for a app by document id. API summary: Get attachment by id.
get_app_establishmentGet one establishment for a app by establishment id. API summary: Get an establishment.
get_app_exportGet one export for a app by export id. API summary: Get a ExportEntity.
get_app_inventoryGet one inventory for a app by inventory id. API summary: Get a stocks.
get_app_paymentGet one payment for a app by payment id. API summary: Get a Transaction.
get_app_productGet one product for a app by product id. API summary: Get a product.
get_app_relationshipGet one relationship for a app by relationship id. API summary: Get a relationship.
get_app_sepamandateGet one sepamandate for a app by sepamandate id. API summary: Get a SEPAMandate.
get_chartGet one chart by type. Results are paginated. API summary: Obtain statistics about sales.
get_contactGet one contact (person) by `contact_id`.
get_invoiceGet one sales invoice by `invoice_id`, with its lines, totals and status.
get_invoice_jpgGet one invoice by invoice id. API summary: Download invoice as jpeg.
get_order_jpgGet one order by purchase id. API summary: Download purchase as jpeg.
get_organizationGet one organization (company contact) by `company_id`.
get_purchaseGet one purchase (supplier invoice) by `order_id`, with amounts, supplier and due date.
get_quoteGet one quote by `quote_id`, with its lines, totals and status.
get_quote_jpgGet one quote by quote id. API summary: Download quote as jpeg.
get_the_next_quote_number_for_previewList nextnumbers. Optional filters: written at. API summary: Get the next quote number for preview.
list_app_companiesList companies for a app. API summary: Get organization profile for current app.
list_app_settingsList settings for a app. API summary: Get app config.
list_app_tagsList tags for a app. Optional filters: object. API summary: Get all existants tags.
list_appsList the Sinao companies (apps) this API key can access, with their numeric IDs.
list_directdebitsList directdebits. Optional filters: invoices ids. API summary: Preview sepa direct debit file.
list_mesList mes. API summary: Get current user.
list_monthsList months. API summary: List ExportEntity.
list_nextnumbersList nextnumbers. Optional filters: written at. API summary: Get the next invoice number for preview.
list_order_originalsList originals for a order. API summary: Download the purchase as pdf.
list_order_thumbnail_jpgsList thumbnail jpgs for a order. API summary: Show purchase thumbnail as jpeg.
list_ordersList orders. Optional filters: detailed or groups. API summary: Obtain statistics about timetable purchases.
list_paymentsSearch payments for a app by search, filters or order. Use this to find existing payments before creating a new payment. Results are paginated. API summary: List payments.
list_refreshesList refreshes. API summary: Refresh a token.
list_salesList sales. Optional filters: detailed or groups. API summary: Obtain statistics about sales.
list_vatsList vats. Optional filters: detailed, start at, period or end at. API summary: Obtain statistics about vat.
remove_a_paymentDeletesPermanently delete a payment by payment id. Destructive action; may require approval. API summary: Remove a payment.
search_app_accountsSearch accounts for a app by search, filters or order. Use this to find existing accounts before creating a new account. Results are paginated. API summary: List Account.
search_app_bankdetailsSearch bankdetails for a app by search, filters or order. Use this to find existing bankdetails before creating a new bankdetail. Results are paginated. API summary: List BankDetails.
search_app_cashflowsourcesSearch cashflowsources for a app by search, filters or order. Use this to find existing cashflowsources before creating a new cashflowsource. Results are paginated. API summary: List CashflowSource.
search_app_categoriesSearch categories for a app by search, filters or order. Use this to find existing categories before creating a new category. Results are paginated. API summary: List categories.
search_app_documentsSearch documents for a app by search, filters or order. Use this to find existing documents before creating a new document. Results are paginated. API summary: List attachments.
search_app_exportsSearch exports for a app by search, filters or order. Use this to find existing exports before creating a new export. Results are paginated. API summary: List ExportEntity.
search_app_inventoriesSearch inventories for a app by search, filters or order. Use this to find existing inventories before creating a new inventory. Results are paginated. API summary: List stocks.
search_app_pagesSearch pages for a app by search, filters or order. Use this to find existing pages before creating a new page. Results are paginated. API summary: List accounting entries.
search_app_paymentsSearch payments for a app by search, filters or order. Use this to find existing payments before creating a new payment. Results are paginated. API summary: List Transaction.
search_app_relationshipsSearch relationships for a app by search, filters or order. Use this to find existing relationships before creating a new relationship. Results are paginated. API summary: List relationships.
search_app_sepamandatesSearch sepamandates for a app by search, filters or order. Use this to find existing sepamandates before creating a new sepamandate. Results are paginated. API summary: List SEPAMandate.
search_contactsSearch contacts (people) by text in `search`, with optional filters, order, limit and offset. Use to find a contact's ID.
search_invoicesSearch sales invoices by text in `search`, with filters (name, comparator, value), order, limit and offset. Use to find unpaid or recent invoices.
search_organizationsSearch organizations (customer and supplier companies) by text in `search`, with optional filters and order. Use to find an organization's ID.
search_productsSearch the product and service catalog by text in `search`, with filters and order.
search_purchasesSearch purchases (supplier invoices and expenses) by text in `search`, with filters, order, limit and offset.
search_quotesSearch quotes (devis) by text in `search`, with filters, order, limit and offset.
search_statisticsSearch statistics by search or filters. Use this to find existing statistics before creating a new statistic. API summary: Obtain statistics about purchases.
search_statistics_app_documents_sales_invoices_statisticsSearch statistics by search or filters. Use this to find existing statistics before creating a new statistic. API summary: Obtain statistics about invoices.
search_statistics_app_documents_sales_quotes_statisticsSearch statistics by search or filters. Use this to find existing statistics before creating a new statistic. API summary: Obtain statistics about quotes.
submit_invoiceVisible to othersDuplicate a invoice (invoice id). Has effects visible outside this system. API summary: Duplicate an invoice.
submit_quoteVisible to othersDuplicate a quote (quote id). Has effects visible outside this system.
update_app_accountChanges dataUpdate an existing account identified by account id. API summary: Update a Account.
update_app_bankdetailChanges dataUpdate an existing bankdetail identified by bankdetail id. API summary: Update a BankDetails.
update_app_cashflowsourceChanges dataUpdate an existing cashflowsource identified by cashflowsource id. API summary: Update a CashflowSource.
update_app_categoryChanges dataUpdate an existing category identified by category id. API summary: Update a category.
update_app_establishmentChanges dataUpdate an existing establishment identified by establishment id. API summary: Update an establishment.
update_app_inventoryChanges dataUpdate an existing inventory identified by inventory id. API summary: Update a stocks.
update_app_orderChanges dataUpdate an existing order identified by order id. API summary: Update a purchase.
update_app_paymentChanges dataUpdate an existing payment identified by payment id. API summary: Update a Transaction.
update_app_relationshipChanges dataUpdate an existing relationship identified by relationship id. API summary: Update a relationship.
update_app_sepamandateChanges dataUpdate an existing sepamandate identified by sepamandate id. API summary: Update a SEPAMandate.
update_contactChanges dataUpdate a contact (person) by `contact_id`: name, civility or main establishment email, phone and address.
update_invoiceChanges dataUpdate a draft sales invoice by `invoice_id`: lines, customer details, title, discount or payment terms.
update_invoice_statusChanges dataSet a sales invoice's status by `invoice_id` to "final" or "paid".
update_organizationChanges dataUpdate an organization (company contact) by `company_id`. Only the fields you pass change.
update_organization_profile_for_current_appChanges dataCreate a new company for a app. Search companies first to avoid duplicates. API summary: Update organization profile for current app.
update_productChanges dataUpdate a product or service by `product_id`: name, price, VAT rate, description or reference.
update_quoteChanges dataUpdate a draft quote by `quote_id`: lines, customer details, title, discount or validity deadline.

Set up in three steps

1
Pick the app
Create a free HeyMyApps account and choose Sinao from the app list.
2
Paste your key
Paste your Sinao API key and your company (app) ID. Log in to Sinao as the company's administrator user and create an API key in the Sinao interface. The key never expires and is tied to one company. The company ID is the number used in Sinao's API addresses, and the AI can look it up with the List apps tool.
3
Add the link to your AI
You get a personal MCP link. Add it to Claude, ChatGPT or Cursor:
1. Click your name, then Settings › Connectors › Add custom connector.
2. Paste your link as the Remote MCP server URL.
3. Switch it on from the + menu in a chat.

Questions

What can the AI do in Sinao?

It can search and read sales invoices, quotes, purchases, organizations, contacts and products. It can create and update organizations, contacts, products, draft quotes and draft invoices, convert a quote into an invoice, finalize invoices and quotes, set an invoice to final or paid, create credit notes and email documents to customers.

Does the AI see my Sinao API key?

No. Your Sinao API key is encrypted at rest and never shown to the AI. After you save it, it is not shown again, not even to you. The AI only sees the results of the tools it calls.

Can I control what the AI is allowed to do?

Yes. You choose which tools are switched on, so you can start read-only. Finalizing an invoice gives it a definitive number and locks it, and emailing documents sends real emails right away. These actions can require your approval before they run. Every tool call is logged.

What does it cost?

HeyMyApps has a free plan with no credit card required. Paid plans bill per completed task. You also need your own Sinao account.

What is the company (app) ID?

A Sinao API key is tied to one company, and the company ID is the number Sinao uses for that company in its API addresses. If you do not know it, the AI can call the List apps tool, which shows the companies your key can access with their IDs.