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The Trassets Data API is a REST interface for real-estate and market data. Base URL: https://api.trassets.ai. Send your API key in the X-API-Key header on every request. All responses are JSON unless noted otherwise.

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Endpoint types

The API offers two endpoint families. Choose the one that fits your use case.

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Category endpoints

Category endpoints return normalized, business-ready data. They support limit and offset query parameters, with metadata returned in response headers:
  • X-Total-Count — total rows matching the query
  • X-Has-More — "true" or "false"
  • X-Next-Offset — the offset for the next page
  • X-Next-Cursor — an opaque cursor when a full page is returned

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Raw endpoints

Raw endpoints expose full source tables, unfiltered. Pagination is cursor-based via the cursor query parameter, taken from the next_cursor field in the response body. Maximum page size is 10,000 rows. The X-Snapshot-At header tells you the timestamp of the last successful sync for that table, so every row in a cursor sequence is consistent as of that snapshot.

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Error format

Errors follow RFC 7807 (application/problem+json). Every error object contains type, title, status, detail, and instance. See Errors for a full list of status codes and retry guidance.

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Versioning

The API currently lives at the base path. URL versioning under /v1/ is planned but not enforced yet. Until versioning is active, breaking changes may occur. We recommend pinning your integration to the documented behavior and monitoring the changelog for updates.

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Endpoint groups

Property

Property objects, structure tree, technical objects, and creditor service assignments — see the Property group in the sidebar.

Contracts

Rental debits, service contracts, and lease terms — see the Contracts group in the sidebar.

Accounting

Bookings, budgets, and account mappings — see the Accounting group in the sidebar.

Depreciation

Fixed assets and depreciation postings — see the Depreciation group in the sidebar.

Operations

Notifications, offers, orders, and projects — see the Operations group in the sidebar.

Stakeholder

Creditors, employees, owners, and tenants — see the Stakeholder group in the sidebar.

Raw Data

Full source tables for bulk export.

Delta Sync

Detect changed tables since a timestamp — see the Delta Sync group in the sidebar.
There is no “Meters” or “Market Data” category. If you saw those names in an earlier version of this documentation, they described planned functionality that was never implemented — see Data Model Overview for the current, live category list.