# Docs

- [AlphaCount for developers](/en): Bill from your own product, react to what happens in the books, and let AI assistants work in them — with AlphaCount doing the bookkeeping.
- [Quickstart](/en/quickstart): Create a key, mirror a customer and issue an invoice — in five minutes.
- Basics
  - [Authentication](/en/basics/authentication): An API key, the one company it belongs to, and the scopes it carries.
  - [Conventions](/en/basics/conventions): Amounts, dates, references, missing values and lists — the same everywhere in the API.
  - [Idempotency](/en/basics/idempotency): Retry any request without creating anything twice.
  - [Errors](/en/basics/errors): One shape for every refusal, with a stable code — and what to do about each.
  - [Versioning](/en/basics/versioning): Dated versions, the AlphaCount-Version header, and what may change without one.
- Guides
  - [Bill your customers from your product](/en/guides/invoices): Mirror customers, issue and send invoices, keep in sync, cancel — while AlphaCount books, sends and dunns.
  - [Contracts and usage](/en/guides/contracts): Products with a price model, contracts that bill per cycle, and the usage your product reports.
  - [Revenue share](/en/guides/revenue-share): Partners who bring you customers get their share of what was paid — computed, stated and booked by AlphaCount.
- Webhooks
  - [Webhooks](/en/webhooks): AlphaCount calls your URL when something happens in a company's books.
  - [Verify signatures](/en/webhooks/signatures): Check that a request comes from AlphaCount and was not replayed.
  - [Events](/en/webhooks/events): Every event, when it happens, and what its data holds.
- MCP
  - [Bring your own agent](/en/mcp/your-agent): Your AI agent does the work. AlphaCount keeps the books, applies the rules and files with the authorities.
  - [Connect an AI assistant](/en/mcp): Let Claude, Cursor or VS Code work in AlphaCount through the Model Context Protocol.
  - [Security and approvals](/en/mcp/security): What an assistant can reach, what it may do alone, and what waits for a person.
  - [Tools](/en/mcp/tools): Every tool of the MCP server, and every action the agent can take through it.
- API reference
  - [API reference](/en/api): Every operation of the AlphaCount API, generated from its published contract.
  - Customers: Your customers, mirrored by your own reference.
    - [Create or update a customer](/en/api/customers/upsertCustomer)
  - Products: Building blocks: pricing model, tiers, interval, quota.
    - [Create or update a product (building block)](/en/api/products/upsertProduct)
  - Invoices: Invoices AlphaCount numbers, books, renders, sends and duns.
    - [List invoices](/en/api/invoices/listInvoices)
    - [Create an invoice](/en/api/invoices/createInvoice)
    - [Retrieve an invoice by your reference](/en/api/invoices/retrieveInvoiceByRef)
    - [Retrieve an invoice](/en/api/invoices/retrieveInvoice)
    - [Cancel an invoice (Stornorechnung)](/en/api/invoices/cancelInvoice)
    - [Download an invoice's PDF](/en/api/invoices/downloadInvoicePdf)
    - [Send an invoice to the customer](/en/api/invoices/sendInvoice)
  - Contracts: Recurring billing per cycle, and the usage it bills.
    - [Retrieve a contract](/en/api/contracts/retrieveContract)
    - [Create or update a contract](/en/api/contracts/upsertContract)
    - [Report usage](/en/api/contracts/reportUsage)
  - Revenue share: Partners, agreements, attributions, the ledger and statements.
    - [Create or update an agreement](/en/api/revenue-share/upsertCommissionAgreement)
    - [Attribute a customer to an agreement](/en/api/revenue-share/upsertCommissionAttribution)
    - [List commission entries](/en/api/revenue-share/listCommissionEntries)
    - [Retrieve a partner and its balance](/en/api/revenue-share/retrieveCommissionPartner)
    - [Create or update a revenue-share partner](/en/api/revenue-share/upsertCommissionPartner)
    - [List statements](/en/api/revenue-share/listCommissionStatements)
    - [Retrieve a statement](/en/api/revenue-share/retrieveCommissionStatement)
    - [Download a statement's PDF](/en/api/revenue-share/downloadCommissionStatementPdf)
    - [Report revenue paid elsewhere](/en/api/revenue-share/createRevenueEvent)
- [Changelog](/en/changelog): Every change to the public contract, by version.

# Docs

- [AlphaCount für Entwickler](/de): Rechne aus deinem eigenen Produkt ab, reagiere auf das, was in der Buchhaltung passiert, und lass KI-Assistenten darin arbeiten — die Buchführung übernimmt AlphaCount.
- [Schnellstart](/de/quickstart): Einen Schlüssel anlegen, einen Kunden spiegeln und eine Rechnung ausstellen — in fünf Minuten.
- Grundlagen
  - [Authentifizierung](/de/basics/authentication): Ein API-Schlüssel, die eine Firma, zu der er gehört, und die Scopes, die er trägt.
  - [Konventionen](/de/basics/conventions): Beträge, Datumsangaben, Referenzen, fehlende Werte und Listen — überall in der API gleich.
  - [Idempotenz](/de/basics/idempotency): Wiederhole jede Anfrage, ohne etwas doppelt anzulegen.
  - [Fehler](/de/basics/errors): Eine Form für jede Ablehnung, mit stabilem Code — und was bei jedem zu tun ist.
  - [Versionierung](/de/basics/versioning): Datierte Versionen, der Header AlphaCount-Version und was sich ohne neue Version ändern darf.
- Anleitungen
  - [Kunden aus deinem Produkt abrechnen](/de/guides/invoices): Kunden spiegeln, Rechnungen ausstellen und versenden, synchron bleiben, stornieren — während AlphaCount bucht, versendet und mahnt.
  - [Verträge und Verbrauch](/de/guides/contracts): Produkte mit Preismodell, Verträge, die je Abrechnungszeitraum abgerechnet werden, und der Verbrauch, den dein Produkt meldet.
  - [Umsatzbeteiligung](/de/guides/revenue-share): Partner, die dir Kunden bringen, bekommen ihren Anteil an dem, was bezahlt wurde — berechnet, abgerechnet und gebucht von AlphaCount.
- Webhooks
  - [Webhooks](/de/webhooks): AlphaCount ruft deine URL auf, wenn in der Buchhaltung einer Firma etwas passiert.
  - [Signaturen prüfen](/de/webhooks/signatures): Prüfe, dass eine Anfrage von AlphaCount kommt und nicht erneut eingespielt wurde.
  - [Ereignisse](/de/webhooks/events): Jedes Ereignis, wann es eintritt und was seine Daten enthalten.
- MCP
  - [Den eigenen Agenten mitbringen](/de/mcp/your-agent): Dein KI-Agent macht die Arbeit. AlphaCount führt die Bücher, wendet die Regeln an und übermittelt an die Behörden.
  - [KI-Assistenten verbinden](/de/mcp): Lass Claude, Cursor oder VS Code über das Model Context Protocol in AlphaCount arbeiten.
  - [Sicherheit und Freigaben](/de/mcp/security): Was ein Assistent erreicht, was er allein tun darf und was auf einen Menschen wartet.
  - [Tools](/de/mcp/tools): Jedes Tool des MCP-Servers und jede Aktion, die der Agent darüber ausführen kann.
- API-Referenz
  - [API-Referenz](/de/api): Jede Operation der AlphaCount-API, erzeugt aus ihrer veröffentlichten Schnittstellenbeschreibung.
  - Customers: Your customers, mirrored by your own reference.
    - [Create or update a customer](/de/api/customers/upsertCustomer)
  - Products: Building blocks: pricing model, tiers, interval, quota.
    - [Create or update a product (building block)](/de/api/products/upsertProduct)
  - Invoices: Invoices AlphaCount numbers, books, renders, sends and duns.
    - [List invoices](/de/api/invoices/listInvoices)
    - [Create an invoice](/de/api/invoices/createInvoice)
    - [Retrieve an invoice by your reference](/de/api/invoices/retrieveInvoiceByRef)
    - [Retrieve an invoice](/de/api/invoices/retrieveInvoice)
    - [Cancel an invoice (Stornorechnung)](/de/api/invoices/cancelInvoice)
    - [Download an invoice's PDF](/de/api/invoices/downloadInvoicePdf)
    - [Send an invoice to the customer](/de/api/invoices/sendInvoice)
  - Contracts: Recurring billing per cycle, and the usage it bills.
    - [Retrieve a contract](/de/api/contracts/retrieveContract)
    - [Create or update a contract](/de/api/contracts/upsertContract)
    - [Report usage](/de/api/contracts/reportUsage)
  - Revenue share: Partners, agreements, attributions, the ledger and statements.
    - [Create or update an agreement](/de/api/revenue-share/upsertCommissionAgreement)
    - [Attribute a customer to an agreement](/de/api/revenue-share/upsertCommissionAttribution)
    - [List commission entries](/de/api/revenue-share/listCommissionEntries)
    - [Retrieve a partner and its balance](/de/api/revenue-share/retrieveCommissionPartner)
    - [Create or update a revenue-share partner](/de/api/revenue-share/upsertCommissionPartner)
    - [List statements](/de/api/revenue-share/listCommissionStatements)
    - [Retrieve a statement](/de/api/revenue-share/retrieveCommissionStatement)
    - [Download a statement's PDF](/de/api/revenue-share/downloadCommissionStatementPdf)
    - [Report revenue paid elsewhere](/de/api/revenue-share/createRevenueEvent)
- [Changelog](/de/changelog): Every change to the public contract, by version.