REST API
The etg24 integration surface is split into two surfaces: REST for systems, MCP for AI agents. Both talk to the same platform, with the same keys, scopes and audit trail.
Property Management API
The Property Management API is the etg24 integration surface for tenants and external systems. It is split into two versions:
| Version | Host | Status |
|---|---|---|
| v2 | https://api.etg24.de/propertymanagement/v2 | current surface |
| v1 | https://api.etg24.de/propertymanagement/v1 | deprecated, disabled on 01.01.2027 |
Every endpoint is either a query (reads data) or a command (changes state) — the same CQRS split the MCP tools follow. New to the platform? Start with Getting Started and the CQRS concept.
→ Browse the full v2 reference · Browse the v1 reference
The interactive reference is rendered from the OpenAPI definitions maintained in the backend. See V1 deprecation & sunset and Rate limits for the cross-cutting concepts.
MCP
The Model Context Protocol server — meta-tool discovery, the domain tool reference, security best practices and per-client setup guides.
Concepts
- Rate limits — how the APIs behave under high load
- V1 deprecation & sunset — the 01.01.2027 shutdown
Both surfaces expose the same platform: full functional and data coverage, the same CQRS split into queries and commands, and the same keys and scopes from identity & delegation.