The API is versioned by date. meta.version in every response names the version that answered, and it is 2026-03-26 today. A change that could break an existing flow gets a new version, so a flow can pin the one it was built against.

2026-10-27

• Every operation page now documents each status the operation can answer and shows a real response captured from the live operation.

2026-10-21

• The reference moved to its own home at skillfulsardine.com/developers/api.

2026-03-26

• The envelope took its current shape. Every response has data, errors and meta, and meta carries the request_id, the UTC timestamp and the version.