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POST
Add Deposit Filter
Auth method: Signed (HMAC) — this endpoint requires the full set of signed headers: x-access-id, x-request-id, x-timestamp, and an HMAC-SHA256 authorization signature. See Authentication.
Registers an address with Tender’s deposit monitor. Once registered, each deposit detected on the address triggers a sub_user_wallet_transaction_detected webhook to your server. See Subwallets for the payload.

Example

Headers

string
required
Base64-encoded HMAC-SHA256 signature of {"timeStamp":"<x-timestamp>","requestId":"<x-request-id>","accessId":"<x-access-id>"}, signed with your access secret. The request body is not part of the signature.Example: "pV3n0o8kq0lK2mJ8bZ1yq3Yt6hR0cXK9u4mVJ2l9sE0="
string
required
ISO 8601 timestamp; must be within 5 minutes of server timeExample: "2026-10-15T09:45:53.000Z"
string
required
A unique UUID v4 per requestExample: "550e8400-e29b-41d4-a716-446655440000"
string
required
Your API access IDExample: "your-access-id-here"
string
required
Example: "application/json"

Body

string
required
The address to watch. It must be a valid address on at least one of chains. Keep the original casing for TRON and BTC addresses.Example: "0x1a2b3c..."
string[]
required
Network types to watch the address on (at least one): EVM, TRON or BTC, case-insensitive. EVM covers every EVM chain that subwallets support.Example: ["EVM"]

Response

string
required
Example: "success"
string
required
Example: "success"
object
required

Error responses

Authorizations

authorization
string
header
required

Signed (HMAC) authentication. Required headers: x-access-id, x-request-id (UUID v4), x-timestamp (ISO 8601, must be within 5 minutes of server time), and authorization: the Base64 HMAC-SHA256 of the JSON string {"timeStamp":"","requestId":"","accessId":""} (keys in that order, no whitespace) using your access secret. The request body, method and path are not signed. The API key must be linked to an outlet.

Headers

authorization
string
required

Base64-encoded HMAC-SHA256 signature of {"timeStamp":"","requestId":"","accessId":""}, signed with your access secret. The request body is not part of the signature.

x-timestamp
string<date-time>
required

ISO 8601 timestamp; must be within 5 minutes of server time

x-request-id
string<uuid>
required

A unique UUID v4 per request

x-access-id
string
required
Content-Type
string
required

Body

application/json
address
string
required
Example:

"0x1a2b3c..."

chains
enum<string>[]
required

Network types, case-insensitive.

Minimum array length: 1
Available options:
EVM,
TRON,
BTC
Example:

Response

Address registered

status
string
required
Example:

"success"

message
string
required
Example:

"success"

data
object
required