Docs | Kash

HTTP status: 409 · Title: “Market not tradeable”

When it fires

The market exists but does not accept trades right now. The reason is in detail.

POST /v1/trades and POST /v1/trades/{id}/confirm return it for every reason below, on both API versions.
GET /v1/markets/{id}/quote returns it for a market cancelled on-chain, and for a Solana market whose on-chain state is no longer active (for example resolved). A quote is a read, so a market past its freeze deadline can still be quoted, with market.tradeable: false in the response.
GET /v1/markets/{id}/quote also returns it for a market that has no on-chain address yet and so cannot be quoted at all.
Pinning 2026-04-29 hides Solana markets. On that pinned version, a Solana market’s detail and quote return CHAIN_NOT_SUPPORTED (400) whatever its state, which says nothing about whether it is tradeable.

The reasons, in the order they are checked. On 2026-08-19, each one is published on the market itself as notTradeableReason:

`notTradeableReason`	Meaning
`resolved`	The outcome is final. Winning positions are redeemable.
`cancelled`	The market was cancelled on-chain. Positions are refundable through `POST /v1/redemptions`.
`inactive`	The market’s status is not one that trades (for example, not yet seeded).
`frozen`	The market’s freeze deadline (`freezeAt`) has passed. Trading has closed.

status alone does not show cancelled or frozen: it stays ACTIVE for both. The market may also have changed between your quote and your trade.

Read tradeable on the market (GET /v1/markets/{id}, GET /v1/markets, or the market object in a quote) before submitting. It is computed by the same rule that returns this error, so tradeable: false means a trade would be refused.
resolved, cancelled and frozen are final, so retrying the same trade will not succeed. Choose another market, or redeem your position when the reason is resolved or cancelled.