Get auth credentials

curl --request GET \
  --url https://laso.finance/auth \
  --header 'SIGN-IN-WITH-X: <sign-in-with-x>'

{
  "auth": {
    "id_token": "<string>",
    "refresh_token": "<string>",
    "expires_in": "<string>"
  },
  "callable_base_url": "https://us-central1-kyc-ts.cloudfunctions.net",
  "user_id": "<string>"
}

Account

Get auth credentials

Free endpoint. Returns an ID token, refresh token, and user ID for the calling wallet. Use the ID token as a Bearer token to call Laso Finance APIs.

Prove wallet ownership by sending a SIGN-IN-WITH-X header: a base64-encoded CAIP-122 signed message. Build it with @x402/extensions/sign-in-with-x (e.g. wrapFetchWithSIWx handles the round-trip automatically). Works for any EVM (Base, eip155:8453) or Solana mainnet wallet.

For ID-token refresh use POST /auth with grant_type=refresh_token.

GET

auth

Get auth credentials

curl --request GET \
  --url https://laso.finance/auth \
  --header 'SIGN-IN-WITH-X: <sign-in-with-x>'

{
  "auth": {
    "id_token": "<string>",
    "refresh_token": "<string>",
    "expires_in": "<string>"
  },
  "callable_base_url": "https://us-central1-kyc-ts.cloudfunctions.net",
  "user_id": "<string>"
}

Headers

Base64-encoded CAIP-122 signed message proving wallet ownership.

Response

Auth credentials and user ID

auth

object

Show child attributes

callable_base_url

string

Example:

"https://us-central1-kyc-ts.cloudfunctions.net"

user_id

string

The user's ID (lowercase wallet address)

Refresh an ID token