KuCoin API
iceberg body parameter removal on POST /api/v1/hf/orders*
Stopped workingSubscribe to KuCoin APIShare
On August 3, 2026, KuCoin API removed support for the body parameter iceberg on POST /api/v1/hf/orders*. Calls that send this parameter fail.
Calls it hits
POST /api/v1/hf/orders*body parameter iceberg
What to use instead of these calls
Stop sending hidden, iceberg and visibleSize on spot orders, including POST /api/v1/hf/orders and its sync, test and batch variants, which KuCoin rejects with error 400413.
In KuCoin API's words
No longer supports the hidden, iceberg and visibleSize parameters.
Facts
- API
- KuCoin API
api.kucoin.com - Kind
- Parameter removal
- Announced
- August 3, 2026
- Takes effect
- August 3, 2026
- Calls after that day
- Fail
- Source
- Announcement
- Last updated
- Verified
- , against KuCoin API's own pages
Questions
When does this change take effect?
Calls to POST /api/v1/hf/orders*, body parameter iceberg on KuCoin API stopped working on August 3, 2026.
What happens to calls after August 3, 2026?
They have failed since August 3, 2026.
How do I find the calls this hits in my code?
Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.
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You fixed this one by hand.
Okapi opens the pull request with the fix before the next breaking change reaches your code.