The market that trades when the exchange is shut.

Tokenized Tencent keeps trading on X Layer for 141 h 20 m of every 168. Curb records the hours, marks the reopen, and lets you exit without selling.

Read the clock Ask the API

  1. Mon 09:30 — opens
  2. 11:55 — cap to zero
  3. Fri 15:55 → Mon 09:30 — 65 h 35 m
  4. This week — 141 h 20 m

now wTCENTx shut cap — reopens — in --:--:-- reading MarketClock on X Layer…

The cut

Every trading day in Hong Kong has two. This is the lunch cut, in the order it happens (HKT).

  1. Cap to zeroFive minutes before the lunch bell, the issuer’s order cap goes to zero. Creation and redemption stop; the pool keeps trading.
  2. The bellHong Kong breaks for lunch. On X Layer nothing pauses.
  3. CommitCurb’s keeper writes its reopen mark on chain, before anyone can know the price.
  4. ReopenThe exchange reopens and the cap returns.
  5. SettleScorecard reads the pool itself and grades the mark against the last print and the closing VWAP.

The record

 

Reading Scorecard.skill() on X Layer…

A tie is not a win.

 

Read the Scorecard

Instruments

  1. 14 Sep Clock Per asset, is the primary market open now, attested every five minutes.
  2. 21 Sep Scorecard Every mark committed before the reopen, graded by the chain.
  3. 24 Sep API Three priced routes for agents, paid per call over x402.
  4. in build Notes Sell the reopen, not the asset.
  5. in build Depth Bond the depth you quote; see the LTV move.

For agents

Ask without paying and you get a price and a free preview. Pay one cent from an OKX Agentic Wallet and you get the answer, with a receipt that ties the payment to the exact bytes you received.

Listed on OKX’s AI marketplace as agent #13869. The three routes

$ curl -si "https://api.curb.markets/v1/closure-calendar?symbol=wTCENTx"
HTTP/2 402
PAYMENT-REQUIRED, decoded:
  scheme   exact
  network  eip155:196  (X Layer)
  amount   10000  (USD₮0, $0.01)
  payTo    0x277c…6068
Press “Ask without paying” to make this call live.

The name

The Curb Market was New York’s outdoor street exchange. Brokers traded on the pavement of Broad Street, signalling orders up to clerks in the windows above.

It moved indoors in 1921 and was renamed the American Stock Exchange in 1953. Curb is that market for the hours the exchange is shut.

History of the American Stock Exchange