modify

post

https://api.hyperliquid.xyzhttps://api.hyperliquid-testnet.xyz

/exchange

Modify an order.

Body

application/json

Modify an order.

nonceintegerRequired

Nonce (timestamp in ms) used to prevent replay attacks.

vaultAddressstring · min: 42 · max: 42Optional

Vault address (for vault trading).

Pattern: ^0[xX][0-9a-fA-F]+$

expiresAfterintegerOptional

Expiration time of the action.

Responses

200

Successful response without specific data or error response.

application/json

Responseany of

Successful response without specific data or error response.

or

422

Failed to deserialize the JSON body into the target type

text/plain

post

/exchange

HTTPcURLJavaScriptPython

POST /exchange HTTP/1.1
Host: api.hyperliquid.xyz
Content-Type: application/json
Accept: */*
Content-Length: 223

{
  "action": {
    "type": "modify",
    "oid": 1,
    "order": {
      "a": 1,
      "b": true,
      "p": "text",
      "s": "text",
      "r": true,
      "t": {
        "limit": {
          "tif": "Gtc"
        }
      },
      "c": "text"
    }
  },
  "nonce": 1,
  "signature": {
    "r": "text",
    "s": "text",
    "v": 27
  },
  "vaultAddress": "text",
  "expiresAfter": 1
}

{
  "status": "ok",
  "response": {
    "type": "default"
  }
}