GET
/
accounts
/
{accountId}
/
balances
List account balances.
curl --request GET \
  --url https://sandbox.api.openfx.com/v1/accounts/{accountId}/balances \
  --header 'Authorization: Bearer <token>' \
  --header 'X-Signature: <api-key>' \
  --header 'X-Timestamp: <api-key>'
{
  "items": [
    {
      "type": "available",
      "currency": "USD",
      "amount": "10000.00"
    }
  ]
}

Authorizations

​
Authorization
string
header
required

API key issued at onboarding. Passed as a Bearer token in the Authorization header: Authorization: Bearer <api-key>. Identifies the caller and determines organization scope. Invalid or revoked keys return 401 with error type authentication_error.

​
X-Signature
string
header
required

Ed25519 or RSA-SHA256 asymmetric signature over the request payload (ADR-0015). Provides request integrity and non-repudiation. The signature covers the HTTP method, path, query string, request body, and timestamp. Invalid signatures return 401 with error type authentication_error.

​
X-Timestamp
string
header
required

Unix timestamp (seconds) of when the request was signed. Server rejects requests where the timestamp drifts beyond +/-60 seconds from server time to prevent replay attacks. Must match the timestamp used in the signature computation.

Path Parameters

​
accountId
string
required

Unique identifier of the account (acc_ prefix). Account resource identifier.

Pattern: ^acc_[A-Za-z0-9]+$
Example:

"acc_01953e1a5f4b7002"

Response

Balance list.

​
items
object[]
required