--- title: "Connect Harpoon and Lexware Office - APIANT.ai" description: "When \"New Client\" fires in Harpoon, your agent runs \"Create a contact\" in Lexware Office." canonical: "https://apiant.ai/connect/harpoon-to-lexware-office" --- # Connect Harpoon and Lexware Office When **New Client** fires in [Harpoon](https://apiant.ai/connections/harpoon), your agent runs **Create a contact** in [Lexware Office](https://apiant.ai/connections/lexware-office), or **Contact updated (instant)** in Lexware Office to **Create Contact** in Harpoon. Describe the whole flow and it is built, tested on every scenario and kept running. Harpoon **9** triggers Harpoon **46** actions Lexware Office **10** triggers Lexware Office **40** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Harpoon and Lexware Office to do together? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser. ### Set it up in your client ### Claude Code Run this in the directory you want to work in. `claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### Claude, web and desktop Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Cursor Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Codex and the ChatGPT desktop app Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Any other MCP client Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) Example flows ## What Harpoon and Lexware Office can do together ### From Harpoon to Lexware Office - When **New Client** in Harpoon then **Create a contact** in Lexware Office - When **New Contact** in Harpoon then **Create an invoice** in Lexware Office ### From Lexware Office to Harpoon - When **Contact updated (instant)** in Lexware Office then **Create Contact** in Harpoon - When **Invoice status changed (instant)** in Lexware Office then **Add Invoice** in Harpoon Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships. Everything your agent can do with Harpoon and Lexware Office ## Triggers and actions 19 triggers · 86 actions - Trigger **New Client** Triggered when a new client is created in Harpoon. - Trigger **New Contact** Triggered when a new contact is created in Harpoon. - Trigger **New Expense** Triggered when a new expense is created in your Harpoon account. - Trigger **New Expense Category** Triggered when a new expense category is created in Harpoon. - Trigger **New Invoice** Triggered when a new invoice is created in Harpoon. - Trigger **New Payment** Triggered when a new payment is recorded in your Harpoon account. - Trigger **New Project** Triggered when a new project is created in Harpoon. - Trigger **New Task Category** Triggered when a new task category is added in your Harpoon account. - Trigger **New Time Entry** Triggered when a new time entry is logged in Harpoon. - Action **Add Credit Entry** Creates a new credit entry on a client's account in Harpoon, recording an amount, a date and an optional note or originating invoice. Returns the credit entry that was created. - Action **Add Invoice** Creates a new invoice in Harpoon for a client or project, with an invoice number, issue date, and optional line items. Returns the invoice that was created. - Action **Add Lead Source** Creates a new lead source in Harpoon, so new clients can be tagged with where they came from. Returns the lead source that was created. - Action **Add Note** Adds a note to a client, project or invoice in Harpoon. Returns the note that was created. - Action **Add Team** Creates a new team in your Harpoon account. Harpoon populates the new team from your account details; the API accepts no team attributes on creation. - Action **Clone Time Entry** Creates a copy of an existing time entry in Harpoon. The copy keeps the original's project, task and description, and starts with today's date and zero hours logged. - Action **Create Contact** Creates a contact person under a Harpoon client, with their name, email address, and phone number. Returns the contact that was created. - Action **Create Expense** Records a one-off expense in Harpoon with its date, amount, and vendor, optionally attributed to a client, project, or expense category. Returns the expense that was created. - Action **Create Expense Category** Creates a new expense category in your Harpoon account so expenses can be grouped under it. - Action **Create Project** Creates a project in Harpoon for a client, with its budget, rate, and start and end dates. Returns the project that was created. - Action **Create Time Entry** Logs hours worked in Harpoon for a team member on a given date, optionally against a client or project. Returns the time entry that was created. - Action **Delete Client** Deletes a client from your Harpoon account. - Action **Delete Expense** Permanently deletes an expense from your Harpoon account. - Action **Delete Invoice** Permanently removes an invoice from Harpoon. Returns Harpoon's confirmation that the invoice was deleted. - Action **Delete Note** Deletes a note from your Harpoon account. - Action **Delete Recurring Expense** Deletes a recurring expense template from Harpoon by its id, so it stops generating new expenses. - Action **Delete Recurring Invoice** Stops and removes a recurring invoice schedule in Harpoon so it no longer generates invoices. Returns Harpoon's confirmation that it was deleted. - Action **Delete Time Entry** Deletes a time entry from your Harpoon account. - Action **Get Client** Returns a single client from your Harpoon account, including its name, contact details and other stored attributes. - Action **Get Client Credits** Returns a client's credit entries in Harpoon, along with the credit still available on the account. - Action **Get Contact** Returns a single Harpoon contact, including their name, email address, phone number, and the client they belong to. - Action **Get Estimate** Returns a single estimate from your Harpoon account, including its client, line items, totals and status. - Action **Get Expense** Returns a single expense from your Harpoon account, including its amount, date, vendor, category and the client or project it is attached to. - Action **Get Expense Category** Returns a single Harpoon expense category with every detail it carries, including its name and budget settings. - Action **Get Invoice** Fetches one invoice from Harpoon by its id, with its client, line items and payment totals. An error occurs if the invoice is not found. - Action **Get Lead Source** Returns a single lead source from your Harpoon account. - Action **Get Project** Returns a single project from your Harpoon account, including its client, budget and status. - Action **Get Recurring Expense** Fetches one recurring expense template from Harpoon by its id, with its vendor, amount, frequency and schedule. An error occurs if it is not found. - Action **Get Recurring Invoice** Returns a single recurring invoice schedule from Harpoon, including its client, frequency, dates, and line items. - Action **Get Task** Returns a single task category from your Harpoon account, including its name and hourly rate. - Action **Get Team** Returns a single team from your Harpoon account, including its name, email address, phone, address, owner and whether it is active. - Action **Get Time Entry** Returns a single tracked time entry from your Harpoon account, including its date, hours, client, project and notes. - Action **List Contacts** Returns the contacts in your Harpoon account, including each contact's name, email address and phone number. - Action **List Estimates** Returns the estimates in a Harpoon account, optionally narrowed to a year, client, project, status, or search text. - Action **List Expense Categories** Returns the expense categories set up in Harpoon, each with its budget settings. - Action **List Expenses** Returns the expenses in your Harpoon account, optionally narrowed by date range, client, project, category, billing status or search text. - Action **List Invoices** Returns the invoices in your Harpoon account, optionally narrowed by year, client, project, status or a search term. - Action **List Projects** Returns the projects in a Harpoon account, with their client, budget, rate, and dates. - Action **List Teams** Returns the teams in your Harpoon account, along with the total number of teams found. - Action **List Time Entries** Returns time entries from your Harpoon account — either the timers running now or logged history for a date range — optionally narrowed by client, project, task, team member or billing status. - Action **Update Expense** Updates an existing expense in your Harpoon account. Only the values you supply are changed. - Action **Update Invoice** Updates an existing invoice in your Harpoon account. Only the values you supply are changed. - Action **Update Project** Updates an existing project in Harpoon — its name, client, billing type, status, dates, budget and task rates. Returns the updated project. - Action **Update Recurring Expense** Updates a recurring expense in Harpoon — its vendor, amount, frequency, category, dates, and status. Anything left blank keeps its current value. Returns the updated recurring expense. - Action **Update Recurring Invoice** Updates an existing recurring invoice template in your Harpoon account. Only the values you supply are changed. - Action **Update Time Entry** Updates an existing time entry in Harpoon — its date, hours, description, project, task or billing state. - Trigger **Contact updated (instant)** Fires when a contact changes in Lexware Office. Event type: contact.changed. - Trigger **Invoice status changed (instant)** Fires when an invoice's status changes in Lexware Office. Event type: invoice.status.changed. - Trigger **New article (instant)** Fires when a new article is created in Lexware Office. Event type: article.created. - Trigger **New contact (instant)** Fires when a new contact is created in Lexware Office. Event type: contact.created. - Trigger **New credit note (instant)** Fires when a new credit note is created in Lexware Office. Event type: credit-note.created. - Trigger **New invoice (instant)** Fires when a new invoice is created in Lexware Office. Event type: invoice.created. - Trigger **New order confirmation (instant)** Fires when a new order confirmation is created in Lexware Office. Event type: order-confirmation.created. - Trigger **New quotation (instant)** Fires when a new quotation is created in Lexware Office. Event type: quotation.created. - Trigger **New voucher (instant)** Fires when a new bookkeeping voucher is created in Lexware Office. Event type: voucher.created. - Trigger **Payment changed (instant)** Fires when the payment status of a sales voucher changes in Lexware Office. Event type: payment.changed. - Action **Create a contact** Creates a contact in Lexware Office as a person or a company, with optional billing address, email, phone and note, and returns the new contact's ID. - Action **Create a credit note** Creates a credit note in Lexware Office for an existing contact or a typed-in address, with your line items. Saves it as a draft unless you choose to finalize it. - Action **Create a delivery note** Creates a delivery note in Lexware Office for an existing contact or a typed-in address, with your delivered line items. Saves it as a draft unless you choose to finalize it. - Action **Create a dunning** Creates a dunning (payment reminder) in Lexware Office, normally chasing an unpaid invoice. Saves it as a draft unless you choose to finalize it. - Action **Create an article** Creates a product or service article in Lexware Office with its unit, price and tax rate, and returns the new article's ID. - Action **Create an invoice** Creates an invoice in Lexware Office for an existing contact or a typed-in address, with your line items and payment terms. Saves it as a draft unless you choose to finalize it. - Action **Create an order confirmation** Creates an order confirmation in Lexware Office for an existing contact or a typed-in address, with your confirmed line items. Saves it as a draft unless you choose to finalize it. - Action **Create a quotation** Creates a quotation in Lexware Office for an existing contact or a typed-in address, with your quoted line items and an expiry date. Saves it as a draft unless you choose to finalize it. - Action **Create a voucher** Books a voucher (an incoming or outgoing document) into Lexware Office with its booking lines, and returns the new voucher's ID. - Action **Delete an article** Deletes an article from Lexware Office by its ID. - Action **Download a credit note file** Returns the PDF file ID and download URL for a finalized credit note in Lexware Office. - Action **Download a delivery note file** Returns the PDF file ID and download URL for a finalized delivery note in Lexware Office. - Action **Download a dunning file** Returns the PDF file ID and download URL for a finalized dunning in Lexware Office. - Action **Download a file** Downloads the actual bytes of a file stored in Lexware Office by its file ID — for example the PDF that "Download an invoice file" reports. Returns the file so a later step can email, upload or attach it. - Action **Download an invoice file** Returns the PDF file ID and download URL for a finalized invoice in Lexware Office. - Action **Download an order confirmation file** Returns the PDF file ID and download URL for a finalized order confirmation in Lexware Office. - Action **Download a quotation file** Returns the PDF file ID and download URL for a finalized quotation in Lexware Office. - Action **Find articles** Searches the Lexware Office article list by article number, barcode or type, and returns the matching articles a page at a time. - Action **Find contacts** Searches Lexware Office contacts by email, name, number or role, and returns the matching contacts a page at a time. - Action **Find voucher list** Lists Lexware Office documents (invoices, credit notes, quotations and the rest) filtered by type, status, contact and date, a page at a time. - Action **Find vouchers** Finds booked vouchers in Lexware Office by their document number and returns the full voucher records. - Action **Get a contact** Returns one Lexware Office contact by its ID, with its roles, person or company details, addresses, emails and phone numbers. - Action **Get a credit note** Returns one Lexware Office credit note by its ID, with its recipient, line items, totals and status. - Action **Get a delivery note** Returns one Lexware Office delivery note by its ID, with its recipient, delivered lines and delivery date. - Action **Get a dunning** Returns a single dunning (payment reminder) by its ID, including its addressee, line items, totals and PDF file reference. - Action **Get an article** Returns a single article (product or service) by its ID, including its name, article number, unit and pricing. - Action **Get an invoice** Returns a single invoice by its ID, including its addressee, line items, totals, payment terms and PDF file reference. - Action **Get an order confirmation** Returns a single order confirmation by its ID, including its addressee, line items, totals and PDF file reference. - Action **Get a quotation** Returns a single quotation by its ID, including its addressee, line items, totals, expiry date and PDF file reference. - Action **Get a voucher** Returns a single bookkeeping voucher by its ID, including its type, contact, amounts, line items and attached files. - Action **Get payment information** Returns the payment status of a voucher, such as an invoice: how much is still open, when it was paid, and the individual payments booked against it. - Action **Pursue to a credit note** Creates a credit note that follows on from an existing invoice, linking the two in Lexware Office. Copies the invoice's recipient, lines and tax settings unless you supply your own lines. - Action **Pursue to a delivery note** Creates a delivery note that follows on from an existing order confirmation, linking the two in Lexware Office. Copies the recipient, lines and tax settings unless you supply your own lines. - Action **Pursue to a dunning** Creates a dunning (payment reminder) that follows on from an unpaid invoice, linking the two in Lexware Office. Copies the recipient, lines and tax settings unless you supply your own lines. - Action **Pursue to an invoice** Creates an invoice that follows on from an existing order confirmation, linking the two in Lexware Office. Copies the recipient, lines and tax settings unless you supply your own lines. - Action **Pursue to an order confirmation** Creates an order confirmation that follows on from an existing quotation, linking the two in Lexware Office. Copies the recipient, lines and tax settings unless you supply your own lines. - Action **Update a contact** Updates an existing contact in Lexware Office. Reads the contact first and changes only the details you fill in, leaving everything else as it was. - Action **Update an article** Updates an existing article in Lexware Office. Reads the article first and changes only the details you fill in, leaving everything else as it was. - Action **Update a voucher** Updates an existing bookkeeping voucher in Lexware Office. Reads the voucher first and changes only the details you fill in, leaving everything else as it was. - Action **Upload Document for Bookkeeping Purposes** Uploads a receipt or other document to Lexware Office for bookkeeping and returns its file ID, which you can attach to a voucher. ## Each app on its own - [ **Harpoon** Harpoon is a financial planning, scheduling, time-tracking, invoicing, and budgeting platform for...](https://apiant.ai/connections/harpoon) - [ **Lexware Office** Lexware Office is a cloud app for german accounting.](https://apiant.ai/connections/lexware-office) Reviews ## What our customers say ## More from Harpoon - [ **Harpoon to Bugcrowd** Bugcrowd API for interacting and tracking the reported issues programmatically](https://apiant.ai/connect/harpoon-to-bugcrowd) - [ **Harpoon to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/harpoon-to-hubspot) - [ **Harpoon to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/harpoon-to-salesforce) - [ **Harpoon to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/harpoon-to-slack) - [ **Harpoon to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/harpoon-to-google-sheets) - [ **Harpoon to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/harpoon-to-gmail) ## More into Lexware Office - [ **Keygen to Lexware Office** Keygen is a key generation service that makes it easy for businesses to license and distribute their software.](https://apiant.ai/connect/keygen-to-lexware-office) - [ **HubSpot to Lexware Office** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-lexware-office) - [ **Google Drive to Lexware Office** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-lexware-office) - [ **Pipedrive to Lexware Office** Pipedrive is a sales CRM and pipeline management tool.](https://apiant.ai/connect/pipedrive-to-lexware-office) - [ **ActiveCampaign to Lexware Office** ActiveCampaign is a marketing automation, email marketing, and CRM platform.](https://apiant.ai/connect/activecampaign-to-lexware-office) - [ **Airtable to Lexware Office** Organize anything with Airtable, a modern database created for everyone.](https://apiant.ai/connect/airtable-to-lexware-office) Questions ## Harpoon and Lexware Office, answered ### ### What can start an automation from Harpoon? Any of Harpoon's 9 triggers in the catalog, including New Client, New Contact, New Expense and New Expense Category. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Lexware Office when something happens in Harpoon? Any of Lexware Office's 40 actions, including Create a contact, Create a credit note, Create a delivery note and Create a dunning. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Lexware Office to Harpoon? Yes. When something happens in Lexware Office, your agent can act in Harpoon too. This page covers both directions: Lexware Office's triggers and Harpoon's actions are listed here as well. ### ### Do I have to build a connector for Harpoon or Lexware Office? No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running. ### ### Can my AI client use Harpoon and Lexware Office without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both. ### ### What happens when something fails? Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships. ### ### Is there a free plan? Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.