Kalshi API · Endpoint removal
POST /trade-api/v2/portfolio/orders/{}/amend is deprecated
Deprecated, no date
Kalshi API deprecated POST /trade-api/v2/portfolio/orders/{}/amend without giving a shutdown date yet.
What to use instead of these calls
Use POST /trade-api/v2/portfolio/events/orders/{order_id}/amend (Amend Order V2).
Calls it hits
POST /trade-api/v2/portfolio/orders/{}/amend
Legacy /portfolio/orders mutation endpoints will be deprecated sometime between June 18 and June 25.
Facts
- API
- Kalshi API
api.elections.kalshi.com - Kind
- Endpoint removal
- Announced
- June 18, 2026
- Takes effect
- No date given yet
- Calls after that day
- Fail
- Source
- Announcement
- Last updated
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- DELETE /trade-api/v2/portfolio/orders/{} is deprecated Deprecated, no date
- DELETE /trade-api/v2/portfolio/orders/batched is deprecated Deprecated, no date
- GET /trade-api/v2/communications/quotes/{} is deprecated Deprecated, no date
- POST /trade-api/v2/portfolio/orders is deprecated Deprecated, no date