lexware

name

lexware

description

Lexware is a business software platform that provides tools for accounting, invoicing, payroll, tax preparation, and financial administration, allowing small businesses and self-employed professionals to manage core back-office processes and integrate operational data into their workflows. Read and write Lexware data through One: vouchers, articles, creditnotes, deliverynotes, dunnings, eventsubscriptions and more, 52 actions with real parameter documentation. Use whenever the user asks to look something up in Lexware, create or update a record there, or build code against the Lexware API.

Lexware through One

Lexware is a business software platform that provides tools for accounting, invoicing, payroll, tax preparation, and financial administration, allowing small businesses and self-employed professionals to manage core back-office processes and integrate operational data into their workflows.

One exposes Lexware through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

1. Find the action in the table below, or call search_one_platform_actions with platform lexware if it is not listed.
2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm Lexware is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real Lexware account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

Vouchers

Action	Method	Path	Action id
Filter Vouchers by Voucher Number	GET	/v1/vouchers	conn_mod_def::GLWE29p_95g::HAvEa5IbR8KoNa_MGDOwSA
Get a Voucher by ID	GET	/v1/vouchers/{{id}}	conn_mod_def::GLWE3HSY2ag::zRrEcQUaQoGWHKy5xmZyWg
List Vouchers	GET	/v1/voucherlist	conn_mod_def::GLWE2_9ok1g::GLbkZB_iT06RN_cwnou-kw
Create a Voucher	POST	/v1/vouchers	conn_mod_def::GLWE28qqHnA::IKKZaWzPQ1ePBrjocmLk0A
Upload a File to a Voucher	POST	/v1/vouchers/{{id}}/files	conn_mod_def::GLWE3ILZ8aA::RXE73PIoQr-3MhbVB8tOYQ

Articles

Action	Method	Path	Action id
Get an Article	GET	/v1/articles/{{id}}	conn_mod_def::GLWE1pxQIQA::PSdueV2EQKqZkKc6orcS2Q
List Articles	GET	/v1/articles	conn_mod_def::GLWE1pviW3A::rx4JWOnySCeAmGSBbKju9A
Create an Article	POST	/v1/articles	conn_mod_def::GLWE1p1vCjg::_5FLNz6ISOKH8Ett05mztw
Update an Article	PUT	/v1/articles/{{id}}	conn_mod_def::GLWE1rODsFg::2jMAbGdgTseiZjPCDEy0Lg

CreditNotes

Action	Method	Path	Action id
Download a Credit Note Document File ID	GET	/v1/credit-notes/{{id}}/document	conn_mod_def::GLWE18fUQtg::a_riPo84TBudzlC5SYpDeg
Download a Credit Note File	GET	/v1/credit-notes/{{id}}/file	conn_mod_def::GLWE1y0sEUg::9cFnX9TXTpGXF8bxjzs2Gg
Get a Credit Note by ID	GET	/v1/credit-notes/{{id}}	conn_mod_def::GLWE18ZzDPg::7dUIxn_cRQaF0u_bWdpMfg
Create Credit Notes	POST	/v1/credit-notes	conn_mod_def::GLWE1zYsREg::F2ZbyMKjSKeBKa1Q5GPq8Q

DeliveryNotes

Action	Method	Path	Action id
Download a Delivery Note Document File ID	GET	/v1/delivery-notes/{{id}}/document	conn_mod_def::GLWE18QV9qA::5DcThsN9S0urWvsIcLI02Q
Download a Delivery Note File	GET	/v1/delivery-notes/{{id}}/file	conn_mod_def::GLWE17q0kNA::323ZAms3SOuSxBL3ZQHjag
Get a Delivery Note by ID	GET	/v1/delivery-notes/{{id}}	conn_mod_def::GLWE2FB3_1g::lcwn3HIpQa2aWsBzsHLLjA
Create a Delivery Note	POST	/v1/delivery-notes	conn_mod_def::GLWE18f_Qqg::aC79U-g0ROGL9uk7cR_P2A

Dunnings

Action	Method	Path	Action id
Document Using Dunnings	GET	/v1/dunnings/{{id}}/document	conn_mod_def::GLWE2NeLdxg::WmyWeHV1TJym_poWVU7Srg
Download a Dunning File	GET	/v1/dunnings/{{id}}/file	conn_mod_def::GLWE2Ff_MqA::owWd43TYTfKmNpYTsED6Lw
Get a Dunning by ID	GET	/v1/dunnings/{{id}}	conn_mod_def::GLWE2NOVt5A::JqNpJ4hUTfuhUsdq6_d3Bw
Create a Dunning	POST	/v1/dunnings	conn_mod_def::GLWE2F5YNog::SRo7hd_zQ7C70vBNSxxyVw

EventSubscriptions

Action	Method	Path	Action id
Get an Event Subscription	GET	/v1/event-subscriptions/{{subscriptionId}}	conn_mod_def::GLWE2VdCC5g::IScp1MNMTEOj_JMXLWkS9w
List Event Subscriptions	GET	/v1/event-subscriptions	conn_mod_def::GLWE2NJww3g::Q_dnpuaIQt2C8tgIPJ1efg
Create an Event Subscription	POST	/v1/event-subscriptions	conn_mod_def::GLWE2NI_hgA::LFd5KPH6Tt6Q5M-qUsFmiA
Delete an Event Subscription	DELETE	/v1/event-subscriptions/{{subscriptionId}}	conn_mod_def::GLWE2NnAKZg::SkRLYDwHSvWliQu7cI7EUw

Invoices

Action	Method	Path	Action id
Download an Invoice Document File ID	GET	/v1/invoices/{{id}}/document	conn_mod_def::GLWE2fdpFYA::wf5eIPLaQh--7le5v9ShVg
Download Invoice File	GET	/v1/invoices/{{id}}/file	conn_mod_def::GLWE2Vbxepg::qZtGDgd2QFut6VecEo7M7w
Get an Invoice	GET	/v1/invoices/{{id}}	conn_mod_def::GLWE2evuGpg::opeoEwwSQHOgUHjOQ-A-1w
Create an Invoice	POST	/v1/invoices	conn_mod_def::GLWE2Weqj6A::tR1e5tYFRQylNqSZ1clwpA

OrderConfirmations

Action	Method	Path	Action id
Document Using Order Confirmations	GET	/v1/order-confirmations/{{id}}/document	conn_mod_def::GLWE2fV8QXA::d81AL99eS2iL533gkFGdNg
Download Order Confirmation File	GET	/v1/order-confirmations/{{id}}/file	conn_mod_def::GLWE2eSbdHA::l7w-ANMdTP-kztQm2D9Jrg
Get Order Confirmation	GET	/v1/order-confirmations/{{id}}	conn_mod_def::GLWE2nSzzmg::IzmepMpWRV2d1MkAKoSARw
Create Order Confirmations	POST	/v1/order-confirmations	conn_mod_def::GLWE2fnSSWg::iaWHhWEZTHOJkWYp6V66-Q

Quotations

Action	Method	Path	Action id
Download a Quotation Document File ID	GET	/v1/quotations/{{id}}/document	conn_mod_def::GLWE2z2Eb8g::Z2MiGCSVR4ul7yIP46rWjA
Download a Quotation File	GET	/v1/quotations/{{id}}/file	conn_mod_def::GLWE2xUhQ6g::3RLV909eS_qnP2zB_nA2og
Get a Quotation by ID	GET	/v1/quotations/{{id}}	conn_mod_def::GLWE2xZn4PA::gBGA5C7zTJm9wAzM6_UaOw
Create a Quotation	POST	/v1/quotations	conn_mod_def::GLWE20yDt0A::PCieBvA5SdaWo9oYprFCvA

Contacts

Action	Method	Path	Action id
Get a Contact by ID	GET	/v1/contacts/{{id}}	conn_mod_def::GLWE1z6AdCA::fwd5yOFyTY6qGX3MCfChJQ
List Contacts	GET	/v1/contacts	conn_mod_def::GLWE10bH7hA::wiDPrMWxR4WwQG9h-6RPlg
Create a Customer Contact	POST	/v1/contacts	conn_mod_def::GLWE1qFkJbA::Z9A_iZXnQxGswL65CXhydg

DownPaymentInvoices

Action	Method	Path	Action id
Download File for a Down Payment Invoice	GET	/v1/down-payment-invoices/{{id}}/file	conn_mod_def::GLWE2Evt50A::58KxFpCuSgav_89WFdlZZA
Get a Down Payment Invoice	GET	/v1/down-payment-invoices/{{id}}	conn_mod_def::GLWE2E2Qc7A::TrDSG-cQQzmgFmKfellFEQ

Files

Action	Method	Path	Action id
Download a File	GET	/v1/files/{{id}}	conn_mod_def::GLWE2VcyX-A::zesuTzRzTLG7QWpstk7DRg
Upload Files	POST	/v1/files	conn_mod_def::GLWE2V5D-bA::b9sX68clRAmD6zr1hU_M9w

RecurringTemplates

Action	Method	Path	Action id
Get a Recurring Template	GET	/v1/recurring-templates/{{id}}	conn_mod_def::GLWE29QXmgA::EJTXEz1CSCS42AOqLvfwlA
List Recurring Templates	GET	/v1/recurring-templates	conn_mod_def::GLWE29Qnyog::aOUaEaZLTxa8aHy1XqJIzQ

Countries

Action	Method	Path	Action id
List Countries	GET	/v1/countries	conn_mod_def::GLWE1yMA6wg::Sfxt74HzS_Gmd2Udu4dgvg

PaymentConditions

Action	Method	Path	Action id
List Payment Conditions	GET	/v1/payment-conditions	conn_mod_def::GLWE2nBOEug::Eehp_PoIRwCeBriA3_f0sQ

PrintLayouts

Action	Method	Path	Action id
List Print Layouts	GET	/v1/print-layouts	conn_mod_def::GLWE2nYlCdg::Ry7LEi9cRF-8e2dcE5kECQ

PostingCategories

Action	Method	Path	Action id
List Posting Categories	GET	/v1/posting-categories	conn_mod_def::GLWE2npJYxA::1Z4IxJekQnuzJKtlzpGa5Q

Payments

Action	Method	Path	Action id
Get Payment Information for a Voucher	GET	/v1/payments/{{voucherId}}	conn_mod_def::GLWE2n-p_Tg::sESiE7nDSmO2YtnLiWS_DQ

Profile

Action	Method	Path	Action id
Get Profile	GET	/v1/profile	conn_mod_def::GLWE2zgyorA::cEOXaI2LR_WYCI2G5c9TuQ

When a call fails

The error comes from Lexware, not from One. A 400 or 422 means your parameters do not match the schema, so re-read the knowledge and fix the field. A 401 or 403 means the connection needs re-authorizing, which no retry will fix. A 404 means the id is not on this account. A 429 means slow down. Never retry a write more than once: the first attempt may have landed.

Full catalog: https://www.withone.ai/knowledge/lexware

Integration knowledge by One (withone.ai), licensed under One-Knowledge-1.0. Attribution must be preserved in derivative works.