Skip to main content
GET
Try Cobo WaaS Skill in your AI coding assistant (Claude Code, Cursor, etc.). Describe your needs in natural language to auto-generate production-ready SDK code and debug faster 🚀

Authorizations

BIZ-API-KEY
string
header
required

The API key. For more details, refer to API key.

In the API playground, enter your API secret, and your API key will be accordingly calculated.

Query Parameters

transaction_type
enum<string>
required

The transaction type. Possible values include:

  • DEPOSIT: A deposit transaction.
  • WITHDRAW: A withdrawal transaction.
Available options:
DEPOSIT,
WITHDRAW
transaction_id
string<uuid>
required

The transaction ID.

Example:

"123e4567-e89b-12d3-a456-426614174000"

Response

The signature challenge was issued successfully.

A signature challenge for self-custody wallet verification. The wallet owner must sign the challenge string with the wallet associated with address and submit the signature via Submit Travel Rule information for deposits or withdrawals. The challenge is time-bounded — each call rotates the challenge and only the most recently-issued value will verify.

address
string
required

The self-custody wallet address that must sign this challenge. This is the counterparty address for the transaction: for deposits it is the sender's wallet, and for withdrawals it is the recipient's wallet.

Example:

"0x1234567890abcdef1234567890abcdef12345678"

challenge
string
required

The human-readable, time-sensitive message to sign. Contains the wallet address, a unique nonce, and a timestamp.

Example:

"Hi, please sign this message to confirm that you are the owner of this wallet address.\nThe transfer can only proceed after signing.\n- Address: 0x1234567890abcdef1234567890abcdef12345678\n- Nonce: b2860f5c9f201a81bc76f33e991c1f24\n- Timestamp: 1732523887\n"

expires_in
integer<int32>
required

Number of seconds before the challenge expires. The signature must be submitted within this window.

Example:

30