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The Trassets Data API delivers structured, machine-readable real estate data to developers and data engineers. It exposes property information, rental contracts, financial bookings, fixed assets, and maintenance operations through a single REST interface so you can build dashboards, sync pipelines, and reporting tools without maintaining multiple integrations.

Quickstart

Make your first API call in under five minutes.

Authentication

How to request and use API keys.

Endpoint Types

Category and raw endpoints explained.

API Reference Overview

Browse the endpoint catalog and conventions.

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What you can access

The API is organized into data categories that match the live category tags (see GET /catalog):
  • Property — Objects, the property structure tree, technical objects, and creditor service assignments.
  • Contracts — Rental debits and diffs, service contracts, and lease/contract ends.
  • Accounting — Chart of accounts, booking headers and positions, budgets, and account-range mappings.
  • Depreciation — Fixed assets and their depreciation postings.
  • Operations — Maintenance notifications, offers, orders, and capital projects.
  • Stakeholder — Creditors, employees, owners, and tenants.
Each category exposes normalized, business-ready endpoints under /{category}/{table}, plus corresponding raw tables under /raw/{table_name} for bulk exports. See the Data Model section for entity relationships and real field names.