melso
AutomationUse casesChangelog
Start your business
Accounting

Connect your AI agent to Lexoffice

Lexoffice is a cloud-based accounting software designed for freelancers and small businesses, offering invoicing, expense management, and integration with banks

Set it up in Melso

  1. 1In Melso, open Settings → Agent Apps and hit Connect on Lexoffice.
  2. 2Finish the API_KEY sign-in in the window that opens. Melso stores the connection, not your credentials.
  3. 3Open your agent, go to its Agent Apps tab, and allow Lexoffice.
  4. 4Give the agent a task. It calls Lexoffice itself when the work needs it.
Get Melso
Lexoffice
lexoffice
41
tools
0
triggers
API_KEY
auth
#171
rank
AccountingProposal & Invoice Management
What you get

What Lexoffice gives your agent

The tools, permissions, and events Lexoffice exposes — the same ones your agent can use once the app is authorized.

What you sign in with

Lexoffice connects with API_KEY.

Permissions

Lexoffice does not break access down into granular permissions.

Tools Lexoffice exposes

LEXOFFICE_CREATE_ARTICLE

Create Article

Tool to create a new article (product or service) in Lexoffice. Use when you need to add items to the product/service catalog for invoicing or quotations. The leadingPrice field must be uppercase (NET or GROSS).

LEXOFFICE_CREATE_CONTACT

Create contact

Tool to create a new contact (customer or vendor) in Lexoffice. Use when you need to add a new business contact. Either company or person details must be provided, and at least one role (customer/vendor) must be assigned.

LEXOFFICE_CREATE_CREDIT_NOTE

Create Credit Note

Tool to create a credit note in Lexoffice. Credit notes are created in draft mode by default; set finalize=true to create with status 'open'. Use when you need to issue a refund or credit for an invoice. Maximum 300 line items per credit note.

LEXOFFICE_CREATE_DELIVERY_NOTE

Create Delivery Note

Create a delivery note in lexoffice. Delivery notes are created in draft mode by default (set finalize=true for open status). Use when shipping goods or providing services and need to document what was delivered without prices/payment terms. Maximum 300 line items allowed per delivery note.

LEXOFFICE_CREATE_EVENT_SUBSCRIPTION

Create Event Subscription

Tool to register a new webhook for Lexoffice events. Use when you need to receive real-time notifications for specific events like invoice creation, contact changes, or payment updates.

LEXOFFICE_CREATE_ORDER_CONFIRMATION

Create Order Confirmation

Tool to create an Order Confirmation in Lexoffice/Lexware. Order confirmations are always created in draft mode and do not need to be finalized. Use when you need to confirm a customer order with line items, pricing, and shipping details.

LEXOFFICE_CREATE_QUOTATION

Create Quotation

Tool to create a quotation in Lexoffice. Quotations are created in draft mode by default. Use the finalize parameter to create a finalized quotation with status 'open'. Requires address with either contactId or name+countryCode, line items, total pricing, and tax conditions.

LEXOFFICE_CREATE_VOUCHER

Create Voucher

Tool to create a bookkeeping voucher in Lexoffice. Use when you need to create expense receipts, sales invoices, purchase invoices, or other accounting vouchers. The voucher requires line items with amounts, tax rates, and posting category IDs.

Example prompts

  • Use Lexoffice to check recent changes and summarize them in the issue.
  • When a customer writes in, pull their data from Lexoffice before replying.
  • Audit our open items in Lexoffice and notify the channel of anything stale.

Useful links

  • Lexoffice website
  • Melso Agent Apps docs

More in Accounting

  • Netsuite
  • Apaleo
  • Zoho Books
  • Zoho Inventory
  • FreshBooks
Related apps

Compare nearby apps

Other Accounting connections your agents can use.

Netsuite

Connect to Netsuite

NetSuite by Oracle is a cloud-based ERP suite that combines accounting, CRM, e-commerce, and inventory management for comprehensive business oversight

85 toolsOAUTH2
Apaleo

Connect to Apaleo

Apaleo is a cloud-based property management platform handling reservations, billing, and daily operations for hospitality businesses

29 toolsOAUTH2
Zoho Books

Connect to Zoho Books

Zoho Books handles accounting, invoicing, and expense tracking, offering real-time collaboration and integrations within the Zoho ecosystem

265 toolsOAUTH2
Zoho Inventory

Connect to Zoho Inventory

Zoho Inventory helps businesses track stock, manage orders, and sync inventory across multiple sales channels, streamlining supply chain operations

58 toolsOAUTH2
FreshBooks

Connect to FreshBooks

FreshBooks is a cloud-based accounting software service designed for small and medium-sized businesses, offering features like invoicing, expense tracking, and time management.

10 toolsOAUTH2
Altoviz

Connect to Altoviz

Altoviz is a cloud-based billing and invoicing platform for businesses, offering online payments, expense tracking, document management, and customizable invoices.

67 toolsAPI_KEY
melso

Run your company with AI agents.

Start your business

Product

  • Home
  • Automation
  • Melso vs Polsia
  • Use cases
  • Changelog
  • Download

Resources

    Company

    • About
    • Contact Sales

    © 2026 Melso. All rights reserved.