Beta Changelog - Cula Docs

2026-06-12

Added support for authenticating with OAuth 2.0 client credentials.
Added new endpoints to create organisations and sites.
Added new endpoints to query delivery configs.
Added new delivery endpoints to query and create deliveries.
Corrected the documented type of the sink fields tracked_gross_co2e_removal_in_kg, tracked_net_co2e_removal_in_kg, and verified_net_co2e_removal_in_kg from integer to number.
Added nullable verified_at field to sink responses, containing the day the removal was verified by the registry.
Added a coordinates and address field on site responses, deprecated the previous location field.
Added an organisation field on site responses, deprecated the previous organisation_id field.

2026-03-05

Breaking Return only verified sinks from the /sinks endpoints.
Breaking Removed the sink.created event.
Breaking Moved from asymmetric to symmetric signatures for webhook deliveries (see Receiving Event Updates):
- The webhook secret was renamed from public_key to secret.
- The signature format changed from ed25519/v1a to HMAC-SHA256/v1.
Breaking Moved the confirmation_document_id field from the material application tracking step to the sink, since the document is sink-specific.

2026-01-28

Breaking Removed tracking step information from the /sinks endpoint (only the /sinks/{id} endpoint includes them).
Breaking Replaced the application_matrix field in the material_application tracking step type with an application_description field.
Breaking Marked id of registry_reference as nullable.
Added rainbow as a possible registry type.
Breaking Removed the pyrolysis tracking step type in favor of the more general material_processing step type.
Breaking Marked confirmation_document_id of the material_application tracking step type as nullable.
Breaking Removed the transport_mode field of the delivery tracking step type.
Breaking Marked verified_net_co2e_removal_in_kg as nullable.
Breaking Renamed the /document/{id} endpoint to /documents/{id} to conform with the naming scheme.
Breaking Removed the legal_address field on the response organisation in favor of a nullable full_address.
Breaking Renamed legal_name on the response organisation to name and marked it nullable.
Breaking Removed the contact_info field from the response organisation and site.
Breaking Marked name of the response site as nullable.

2026-01-27

Removed nullable flags of the response array fields previous_step_ids and document_ids of sinks.

2026-01-26

Marked all response fields as required; optional fields return explicitly null.
Breaking Added maxLength constraints to the webhook endpoint fields url and description.

2026-01-23