Skip to main content
POST
/
v1
/
orders
Create Order
curl --request POST \
  --url https://api.polymarket.us/v1/orders \
  --header 'Content-Type: application/json' \
  --header 'X-PM-Access-Key: <api-key>' \
  --header 'X-PM-Signature: <api-key>' \
  --header 'X-PM-Timestamp: <api-key>' \
  --data '
{
  "marketSlug": "<string>",
  "quantity": 123,
  "participateDontInitiate": true,
  "goodTillTime": "<string>",
  "synchronousExecution": true,
  "maxBlockTime": "<string>",
  "slippageTolerance": {
    "bips": 123,
    "ticks": 123
  }
}
'
{
  "id": "<string>",
  "executions": [
    {
      "id": "<string>",
      "order": {
        "id": "<string>",
        "marketSlug": "<string>",
        "price": {
          "value": "0.55",
          "currency": "USD"
        },
        "quantity": 123,
        "cumQuantity": 123,
        "leavesQuantity": 123,
        "goodTillTime": "2023-11-07T05:31:56Z",
        "marketMetadata": {
          "slug": "<string>",
          "icon": "<string>",
          "title": "<string>",
          "outcome": "<string>",
          "eventSlug": "<string>",
          "teamId": 123,
          "team": {
            "id": 123,
            "name": "<string>",
            "abbreviation": "<string>",
            "league": "<string>",
            "record": "<string>",
            "logo": "<string>",
            "alias": "<string>",
            "safeName": "<string>",
            "homeIcon": "<string>",
            "awayIcon": "<string>",
            "colorPrimary": "<string>",
            "ordering": "<string>",
            "ranking": "<string>",
            "conference": "<string>"
          }
        },
        "commissionNotionalTotalCollected": {
          "value": "0.55",
          "currency": "USD"
        },
        "commissionsBasisPoints": "<string>",
        "makerCommissionsBasisPoints": "<string>",
        "avgPx": {
          "value": "0.55",
          "currency": "USD"
        },
        "cashOrderQty": {
          "value": "0.55",
          "currency": "USD"
        },
        "insertTime": "2023-11-07T05:31:56Z",
        "createTime": "2023-11-07T05:31:56Z"
      },
      "lastShares": "<string>",
      "lastPx": {
        "value": "0.55",
        "currency": "USD"
      },
      "text": "<string>",
      "transactTime": "2023-11-07T05:31:56Z",
      "legPrices": [
        {
          "marketSlug": "<string>",
          "anchor": true,
          "px": {
            "value": "0.55",
            "currency": "USD"
          },
          "qty": "<string>",
          "referencePx": "<string>"
        }
      ],
      "tradeId": "<string>",
      "aggressor": true,
      "commissionNotionalCollected": {
        "value": "0.55",
        "currency": "USD"
      },
      "traceId": "<string>",
      "commissionSpreadPx": {
        "value": "0.55",
        "currency": "USD"
      },
      "transactTradeDate": "2023-11-07T05:31:56Z"
    }
  ]
}

Authorizations

​
X-PM-Access-Key
string
header
required

Your API key ID (UUID). Generate at polymarket.us/developer.

​
X-PM-Timestamp
string
header
required

Unix timestamp in milliseconds. Must be within 30 seconds of server time.

​
X-PM-Signature
string
header
required

Base64-encoded Ed25519 signature of timestamp + method + path. See Authentication for details.

Body

application/json

Request to create a new order

Request to create a new order.

​
marketSlug
string
required

Unique market slug into which the order should be entered

​
type
enum<string>

Type of order (limit or market)

Available options:
ORDER_TYPE_LIMIT,
ORDER_TYPE_MARKET
​
price
object

Order price and currency. Required for limit orders.

​
quantity
number<double>

Order quantity in contracts. Supports decimal quantities on markets whose minimumTradeQty is less than 1.

​
tif
enum<string>

Order time in force policy

Available options:
TIME_IN_FORCE_DAY,
TIME_IN_FORCE_GOOD_TILL_CANCEL,
TIME_IN_FORCE_GOOD_TILL_DATE,
TIME_IN_FORCE_IMMEDIATE_OR_CANCEL,
TIME_IN_FORCE_FILL_OR_KILL
​
participateDontInitiate
boolean

If true, order must rest on the book prior to matching (maker only). Order will be rejected if it would immediately match.

​
goodTillTime
string

Expiration time for orders with TIME_IN_FORCE_GOOD_TILL_DATE

​
intent
enum<string>

Order intent. Either intent or (outcomeSide + action) must be set.

Available options:
ORDER_INTENT_BUY_LONG,
ORDER_INTENT_SELL_LONG,
ORDER_INTENT_BUY_SHORT,
ORDER_INTENT_SELL_SHORT
​
outcomeSide
enum<string>

Outcome side. Set with action as an alternative to intent. Takes priority if both are set.

Available options:
OUTCOME_SIDE_YES,
OUTCOME_SIDE_NO
​
action
enum<string>

Order action. Set with outcomeSide as an alternative to intent.

Available options:
ORDER_ACTION_BUY,
ORDER_ACTION_SELL
​
cashOrderQty
object

Order quantity in cash and currency. Used for market orders instead of share quantity.

​
manualOrderIndicator
enum<string>

Indicates whether the order was placed manually or automatically

Available options:
MANUAL_ORDER_INDICATOR_MANUAL,
MANUAL_ORDER_INDICATOR_AUTOMATIC
​
synchronousExecution
boolean

If true, will block until the order is filled, rejected, canceled, or expired, up to maxBlockTime seconds

​
maxBlockTime
string<int64>

Maximum block time in seconds if synchronous execution is requested

​
slippageTolerance
object

Slippage tolerance configuration for the order

Response

Order created successfully

Response containing created order ID

​
id
string

Exchange-assigned order ID

​
executions
object[]

Executions if synchronous execution was requested