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GET
Get auth credentials

Authorizations

SIGN-IN-WITH-X
string
header
required

Sign-In-With-X (CAIP-122) wallet signature proving ownership of the calling EVM (Base) or Solana wallet. Identity only, no payment. Build it with @x402/extensions/sign-in-with-x (wrapFetchWithSIWx).

Headers

SIGN-IN-WITH-X
string
required

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

Response

Auth credentials and user ID

auth
object
callable_base_url
string
Example:

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

user_id
string

The user's ID (lowercase wallet address)