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POST
/
api
/
v1
/
auth
/
wallet
/
challenge
Issue SIWE challenge
curl --request POST \
  --url https://api.luxxon.dev/api/v1/api/v1/auth/wallet/challenge \
  --header 'Content-Type: application/json' \
  --data '
{
  "walletAddress": "0xAbC0000000000000000000000000000000000001"
}
'
{
  "statusCode": 200,
  "message": "Request successful",
  "data": {
    "nonce": "9f3a2b1c0d4e5f6a7b8c9d0e1f2a3b4c",
    "message": "Luxxon — sign in to prove wallet ownership.\nAddress: 0xAbC...\nNonce: 9f3a...\nExpires: 2026-05-13T12:05:00.000Z",
    "expiresAt": "2026-05-13T12:05:00.000Z"
  },
  "timestamp": "2026-05-13T12:00:00.000Z"
}

Body

application/json
​
walletAddress
string
required

EIP-55 checksummed wallet address requesting sign-in.

Example:

"0xAbC0000000000000000000000000000000000001"

Response

Request successful

​
statusCode
number
required
Example:

200

​
message
string
required
Example:

"Request successful"

​
data
object
required

Endpoint-specific payload. See the per-endpoint schema.

​
timestamp
string
required
Example:

"2026-05-13T12:00:00.000Z"