Pesquisa verificada por fontes: OKX

Decision outcome: Before September 30, API and bot users should inventory every affected instrument ID, cancel or migrate open USD orders during the parallel period, recreate bots on the corresponding USDC pairs, test tradeQuoteCcy handling, monitor auto-cancel or bot-close behavior, and keep a rollback note showing which orders were intentionally left inactive.

Evidence snapshot. This article was researched at 2026-09-22T02:44:00.289Z using OKX United States, OKX API Docs, OKX. A local queue, old draft, search snippet, social repost, price chart or AI summary was not treated as proof. Those surfaces can suggest a question, but every material claim below is tied to the cited source list and claim map.

Verified facts. Claim c1: OKX says corresponding USDC spot pairs are scheduled to become available on September 23, 2026 and affected USD spot pairs, except USDT-USD, are scheduled for delisting on September 30, 2026. Claim c2: OKX says all open orders on affected USD pairs will be automatically canceled and strategy orders, trading bots and API programs using affected USD pairs will no longer be able to place orders after delisting. Claim c3: OKX says requests currently using a Crypto-USD instrument ID must use the corresponding Crypto-USDC instrument ID after the change, and tradeQuoteCcy may need to be explicitly set to USD. Claim c4: The OKX API changelog repeats the September 23 and September 30 migration dates and tells API clients to adapt instrument IDs, tradeQuoteCcy handling and WebSocket subscription logic. These facts are intentionally narrow. They do not prove account eligibility, future availability, execution quality, legal status beyond the cited wording, tax treatment, account approval, support outcome, redemption success, price direction, liquidity depth or platform solvency.

Decision discipline for OKX USD USDC spot order book migration API bot checklist. The useful answer is not a universal winner. It is a source-bound scorecard: which official source answers the immediate question, which control is blank, which blank changes user risk, which test is reversible and which condition reopens the decision. An honest blank is safer than an invented advantage.

FAQ. What is the short answer? OKX says selected USD spot pairs are being migrated or consolidated into corresponding USDC pairs, with a parallel trading period beginning on September 23, 2026 and affected USD pairs delisted on September 30, 2026. What should be verified first? Verify the official source and the exact control surface. What should not be inferred? Do not infer eligibility, future support, legal treatment, tax treatment, recovery, execution quality, liquidity, redemption, consumer protection or account approval. When should the user stop? Stop when source, object, user state, permission, route, issuer, jurisdiction or failure handling is unclear.