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Integration

Lexoffice

German accounting and invoicing: contacts, invoices and vouchers. Your client pastes their Lexoffice key once, and your agent or your code works with their access.

Accounting

About Lexoffice

Through Operate As, your agent, n8n workflow or code works in Lexoffice with your client's own access. Your client pastes their API key from Lexoffice once. We store it encrypted, so it never sits in an email or a shared doc. Your agent reaches any endpoint of Lexoffice's API through the request tool, with the client's access attached.

Common uses in Accounting

  • Create invoices and record payments
  • Match transactions and chase overdue bills
  • Pull numbers for a monthly report

Lexoffice

Lexoffice · Accounting

API key

German accounting and invoicing: contacts, invoices and vouchers

The client pastes their API key from Lexoffice's settings. We store it encrypted.

Tested against Lexoffice's live API.

Building with Lexoffice? The docs have setup steps and code for every tool.

Open the Lexoffice docs

Tools

Your agent calls any endpoint of Lexoffice's API with the request tool, with the client's access attached.

Base URL for request

https://api.lexoffice.io/v1

  • request

    HTTPS ANY /v1/clients/{clientId}/lexoffice/{path}

    Any endpoint of Lexoffice's own API, with the client's access attached.

    servicestringrequired
    This service: lexoffice
    methodstringrequired
    GET, POST, PUT, PATCH or DELETE
    pathstringrequired
    The path under https://api.lexoffice.io/v1
    queryobjectoptional
    Query parameters
    bodyobjectoptional
    A JSON body

Over MCP every tool also takes client_id, from list_clients. Over HTTPS send it as clientId to https://api.operate.as/v1.

What the client approves

  • Use the Lexoffice key you paste, with only the access you gave that key

Get started

Send your next client one link

Add a client, select the services, copy the link. You'll get an email the moment their access is ready. Start free, no card required. Paid plans are one flat monthly price, and a busy month never takes your agents offline.