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POST
/
info
info (preTransferCheck)
curl --request POST \
  --url https://api.hyperliquid.xyz/info \
  --header 'Content-Type: application/json' \
  --data '
{
  "type": "preTransferCheck",
  "user": "0x1442ad477ded1b0028b57621aa7b6f7eadb8f568",
  "source": "0x1442ad477ded1b0028b57621aa7b6f7eadb8f568"
}
'
{
  "isSanctioned": true,
  "userExists": true,
  "fee": "<string>",
  "userHasSentTx": true
}
You can only use this endpoint on the official Hyperliquid public API. It is not available through Chainstack, as the open-source node implementation does not support it yet. See Hyperliquid methods for the full availability breakdown.
The info endpoint with type: "preTransferCheck" pre-flights a transfer to a destination address. It returns whether the destination is sanctioned, whether it already exists on Hyperliquid, the fee that would apply, and whether the user has previously transacted.
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​
Parameters

​
Request body

  • type (string, required) — The request type. Must be "preTransferCheck".
  • user (string, required) — Destination address in 42-character hexadecimal format.
  • source (string, required) — Source address in 42-character hexadecimal format.

​
Response

Returns a pre-transfer check object:
  • isSanctioned (boolean) — Whether the destination address is sanctioned.
  • userExists (boolean) — Whether the destination already exists on Hyperliquid.
  • fee (string) — The transfer fee that would apply.
  • userHasSentTx (boolean) — Whether the user has previously sent a transaction.

​
Example request

curl -X POST \
  -H "Content-Type: application/json" \
  -d '{"type": "preTransferCheck", "user": "0x1442ad477ded1b0028b57621aa7b6f7eadb8f568", "source": "0x1442ad477ded1b0028b57621aa7b6f7eadb8f568"}' \
  https://api.hyperliquid.xyz/info

​
Example response

{
  "isSanctioned": false,
  "userExists": true,
  "fee": "0.0",
  "userHasSentTx": true
}

​
Use cases

The info endpoint with type: "preTransferCheck" is useful for:
  • Pre-flighting a transfer before submitting it
  • Surfacing the applicable fee to the user before sending
  • Sanctions screening of a destination address

Body

application/json
​
type
enum<string>
default:preTransferCheck
required

Request type

Available options:
preTransferCheck
​
user
string
default:0x1442ad477ded1b0028b57621aa7b6f7eadb8f568
required

Destination address in 42-character hexadecimal format.

​
source
string
default:0x1442ad477ded1b0028b57621aa7b6f7eadb8f568
required

Source address in 42-character hexadecimal format.

Response

200 - application/json

Pre-transfer check result for the destination user.

​
isSanctioned
boolean

Whether the address is sanctioned.

​
userExists
boolean

Whether the destination user already exists on Hyperliquid.

​
fee
string

Transfer fee that would apply.

​
userHasSentTx
boolean

Whether the user has previously sent a transaction.

Last modified on June 24, 2026