curl --request PATCH \
  --url https://api.perpetuals.polymarket.com/v1/trade/auto-cancel \
  --header 'Content-Type: application/json' \
  --data '
{
  "op": {
    "type": "autoCancel",
    "args": {
      "time": 1767000045000
    }
  },
  "sig": "0x2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b1c",
  "salt": 666666666,
  "ts": 1767000015000
}
'

{
  "status": "ok",
  "deadline": 1767000045000
}

{
  "status": "err",
  "error": "insufficient_margin"
}

{
  "status": "err",
  "error": "insufficient_margin"
}

{
  "status": "err",
  "error": "insufficient_margin"
}

{
  "status": "err",
  "error": "insufficient_margin"
}

{
  "status": "err",
  "error": "insufficient_margin"
}

Set Auto-Cancel

Set a dead man’s switch that cancels all your open orders at the chosen time. The time must be at least 5 seconds in the future. Send 0 to clear an active schedule without triggering it; posting a new time replaces the current one.

The switch fires once, then clears itself. It does not cover orders you place after it fires, so re-arm it if you still need protection.

An account can trigger auto-cancel up to 1000 times per UTC day. After that, the API rejects new schedules with the error auto_cancel_daily_limit_reached until the next UTC day. Clearing a schedule is always allowed. To check the active deadline and today’s trigger count, call Get Auto-Cancel Status.

Requires proxy signature, see proxy signing.

PATCH

trade

auto-cancel

curl --request PATCH \
  --url https://api.perpetuals.polymarket.com/v1/trade/auto-cancel \
  --header 'Content-Type: application/json' \
  --data '
{
  "op": {
    "type": "autoCancel",
    "args": {
      "time": 1767000045000
    }
  },
  "sig": "0x2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b1c",
  "salt": 666666666,
  "ts": 1767000015000
}
'

{
  "status": "ok",
  "deadline": 1767000045000
}

{
  "status": "err",
  "error": "insufficient_margin"
}

{
  "status": "err",
  "error": "insufficient_margin"
}

{
  "status": "err",
  "error": "insufficient_margin"
}

{
  "status": "err",
  "error": "insufficient_margin"
}

{
  "status": "err",
  "error": "insufficient_margin"
}

Body

application/json

Auto-cancel request.

object

required

Show child attributes

sig

string

required

Signature in hex format

Example:

"0x1234567890..."

salt

integer

required

Salt

Example:

1234567890

integer

required

Request timestamp. Unix milliseconds for most operations; Unix seconds for withdrawals (must match the on-chain EIP-712 struct verified against block.timestamp).

Example:

1767225600000

Response

The effective auto-cancel schedule after the update.

The auto-cancel schedule now in effect. The deadline field echoes the armed time in Unix milliseconds, or 0 if you cleared the schedule.

status

enum<string>

required

Available options:

ok

deadline

integer

required

Deadline of the armed auto-cancel schedule, in Unix milliseconds. Zero means no schedule is armed. When the deadline passes, the exchange cancels every open order on the account and the schedule clears.

Example:

1767000045000

HTTP

WebSocket

Set Auto-Cancel

Body

Response