Integration
Connect Lexware Office to Retell AI
When something happens in Lexware Office, your agent does the next thing in Retell AI. Describe it and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want Lexware Office and Retell AI to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiAny 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.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)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)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)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)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)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)Example flows
What Lexware Office can start in Retell AI
When Contact updated (instant) in Lexware Office
then Add Agent in Retell AI
When Invoice status changed (instant) in Lexware Office
then Create Knowledge Base in Retell AI
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 Lexware Office and Retell AI
Triggers and actions 10 triggers · 67 actions
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 contactCreates 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 noteCreates 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 noteCreates 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 dunningCreates 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 articleCreates 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 invoiceCreates 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 confirmationCreates 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 quotationCreates 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 voucherBooks a voucher (an incoming or outgoing document) into Lexware Office with its booking lines, and returns the new voucher's ID.
Action
Delete an articleDeletes an article from Lexware Office by its ID.
Action
Download a credit note fileReturns the PDF file ID and download URL for a finalized credit note in Lexware Office.
Action
Download a delivery note fileReturns the PDF file ID and download URL for a finalized delivery note in Lexware Office.
Action
Download a dunning fileReturns the PDF file ID and download URL for a finalized dunning in Lexware Office.
Action
Download a fileDownloads 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 fileReturns the PDF file ID and download URL for a finalized invoice in Lexware Office.
Action
Download an order confirmation fileReturns the PDF file ID and download URL for a finalized order confirmation in Lexware Office.
Action
Download a quotation fileReturns the PDF file ID and download URL for a finalized quotation in Lexware Office.
Action
Find articlesSearches the Lexware Office article list by article number, barcode or type, and returns the matching articles a page at a time.
Action
Find contactsSearches Lexware Office contacts by email, name, number or role, and returns the matching contacts a page at a time.
Action
Find voucher listLists Lexware Office documents (invoices, credit notes, quotations and the rest) filtered by type, status, contact and date, a page at a time.
Action
Find vouchersFinds booked vouchers in Lexware Office by their document number and returns the full voucher records.
Action
Get a contactReturns one Lexware Office contact by its ID, with its roles, person or company details, addresses, emails and phone numbers.
Action
Get a credit noteReturns one Lexware Office credit note by its ID, with its recipient, line items, totals and status.
Action
Get a delivery noteReturns one Lexware Office delivery note by its ID, with its recipient, delivered lines and delivery date.
Action
Get a dunningReturns a single dunning (payment reminder) by its ID, including its addressee, line items, totals and PDF file reference.
Action
Get an articleReturns a single article (product or service) by its ID, including its name, article number, unit and pricing.
Action
Get an invoiceReturns a single invoice by its ID, including its addressee, line items, totals, payment terms and PDF file reference.
Action
Get an order confirmationReturns a single order confirmation by its ID, including its addressee, line items, totals and PDF file reference.
Action
Get a quotationReturns a single quotation by its ID, including its addressee, line items, totals, expiry date and PDF file reference.
Action
Get a voucherReturns a single bookkeeping voucher by its ID, including its type, contact, amounts, line items and attached files.
Action
Get payment informationReturns 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 noteCreates 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 noteCreates 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 dunningCreates 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 invoiceCreates 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 confirmationCreates 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 contactUpdates 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 articleUpdates 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 voucherUpdates 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 PurposesUploads a receipt or other document to Lexware Office for bookkeeping and returns its file ID, which you can attach to a voucher.
Action
Add AgentCreate a new Retell AI voice agent attached to a response engine (Retell LLM, custom LLM, or conversation flow) and a voice.
Action
Create Knowledge BaseCreate a new Retell AI knowledge base from texts, URLs and/or a file.
Action
Create Retell LLMCreate a new Retell LLM Response Engine that can be attached to an agent. This is used to generate response output for the agent.
Action
Delete AgentDeletes an existing Retell AI agent, including all of its versions.
Action
Delete Knowledge BaseDelete an existing knowledge base.
Action
Delete Phone NumberDelete a phone number from your Retell AI account.
Action
Delete Retell LLMDelete a Retell LLM response engine.
Action
Get a CallRetrieves the full details of a Retell AI call (phone or web): status, transcript, recording links, post-call analysis, cost and latency.
Action
Get an AgentRetrieve the full configuration of a Retell AI voice agent.
Action
Get a Phone NumberRetrieve the details of one phone number in your Retell AI account, including its bound agents, nickname and webhook settings.
Action
Get a Retell LLMRetrieve the details of a Retell LLM response engine, including its prompt, model, tools and states.
Action
Get a VoiceRetrieve the details of a single Retell AI voice: its name, provider, accent, gender, age and a preview audio link.
Action
Get ConcurrencyGets your Retell AI organization's current number of ongoing calls and its concurrency limits.
Action
Get Knowledge BaseRetrieve the details of a knowledge base, including its processing status and sources.
Action
Import Phone NumberImport a phone number from your own telephony provider (for example a Twilio elastic SIP trunk) into Retell AI and optionally bind agents to it.
Action
List AgentsLists the voice and chat agents in the Retell AI account, optionally filtered by channel or by a name/id search.
Action
List CallsList calls in the Retell AI account, newest first by default, optionally filtered by agent, status, direction, numbers, time range and more. Returns up to 1000 calls; transcripts and recording URLs are not included (use Get a Call for those).
Action
List Knowledge BasesList all knowledge bases in the Retell AI account.
Action
List Phone NumbersLists the phone numbers in your Retell AI account (up to 1000).
Action
List Retell LLMsLists the Retell LLM response engines in the account.
Action
List VoicesList all voices available to the Retell AI account.
Action
Make a Phone CallStart a new outbound phone call from one of your Retell numbers, handled by a Retell voice agent.
Action
Register Phone CallRegister a phone call placed through your own (custom) telephony, so Retell issues a call id your telephony can connect the audio to.
Action
Update AgentUpdates an existing Retell AI voice agent's latest draft version. Only the fields you fill in are changed.
Action
Update CallUpdate the metadata, data storage setting or custom attributes of an existing Retell AI call.
Action
Update Phone NumberUpdates the agents, nickname, webhooks, country restrictions, SIP trunk and fallback settings of a phone number in Retell AI. Only the fields you fill in are changed.
Action
Update Retell LLMUpdate an existing Retell LLM response engine's configuration (prompt, model, etc).
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
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Questions
Lexware Office and Retell AI, answered
What can start an automation from Lexware Office?
Any of Lexware Office's 10 triggers in the catalog, including Contact updated (instant), Invoice status changed (instant), New article (instant) and New contact (instant). Describe the moment in plain language and your agent picks the right one.
What can your agent do in Retell AI when something happens in Lexware Office?
Any of Retell AI's 27 actions, including Create Knowledge Base, Create Retell LLM, Update Agent and Update Call. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Retell AI to Lexware Office?
Retell AI has no triggers in the catalog today, so automations start in Lexware Office. If you need the other direction, ask: your agent reads Retell AI's API documentation and adds it.
Do I have to build a connector for Lexware Office or Retell AI?
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.
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.