DATEV Online APIs (Sandbox)

DATEV Online APIs (Sandbox)

Sandbox environment for the DATEV Online APIs — read accounting Mandanten (clients), document types and DUO version metadata against DATEV's test data. Use this while you build and test; every new DATEV app must run in sandbox until DATEV grants production approval. Same OAuth2 Authorization Code + PKCE flow as production, pointed at DATEV's sandbox endpoints.

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Setup in 2 minuti

  1. 1Avvia la trial gratuita su cloud.anythingmcp.com.
  2. 2Clicca DATEV Online APIs (Sandbox) nel connector store. Incolla le credenziali quando richiesto.
  3. 3Genera una MCP API key e punta il client AI all'URL MCP generato.
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Configurare DATEV Online APIs (Sandbox)

Direttamente dalla definizione del connettore: dove trovare le credenziali, quali permessi servono e con quale API parla questo adapter. Fornite in inglese dall'autore del connettore.

Use this connector for testing. Every DATEV app runs in the sandbox until DATEV completes its production-approval review — so this is where you start.

Setup:

  1. Create a Confidential app on the DATEV-Entwicklerportal (https://developer.datev.de) with OpenID Connect Authorization Code Flow. Set the redirect URI to <your-server>/api/mcp-oauth/callback.
  2. Subscribe the app to the sandbox API products: accounting:clients 2.0 and accounting:documents 2.0.
  3. Set DATEV_CLIENT_ID and DATEV_CLIENT_SECRET (from the portal — copy the secret in full, it is shown only once).
  4. Import this adapter — it is pre-configured for the sandbox (authorize login.datev.de/openidsandbox/authorize, token sandbox-api.datev.de/token, API base platform-sandbox/v2) and authenticates at the token endpoint via HTTP Basic (client_secret_basic), which DATEV requires.
  5. Run the one-time OAuth flow: POST /api/connectors/{id}/oauth/authorize -> open the returned URL -> log in with your DATEV-Konto -> the platform stores an encrypted refresh token automatically.
  6. Every call then sends Authorization: Bearer <token> AND the mandatory X-DATEV-Client-Id: <DATEV_CLIENT_ID> header automatically.

Going to production: once DATEV approves your app for production, use the separate DATEV Online APIs connector (same credentials, production endpoints).

Scopes requested: datev:accounting:clients accounting:clients:read accounting:documents. Do NOT add openid — it is the issuer name, not a requested scope.

Mandant scoping: every per-client tool takes a clientId parameter — the Mandant UUID (RFC4122), returned by datev_list_clients. Distinct from DATEV_CLIENT_ID (the OAuth app identifier, sent in the header).

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