GET
/
transactions
List transactions.
curl --request GET \
  --url https://sandbox.api.openfx.com/v1/transactions \
  --header 'Authorization: Bearer <token>' \
  --header 'X-Signature: <api-key>' \
  --header 'X-Timestamp: <api-key>'
{
  "items": [
    {
      "id": "txn_01953e1a5f4b7600",
      "accountId": "acc_01953e1a5f4b7002",
      "type": "payment_out",
      "direction": "debit",
      "amount": "1502.50",
      "currency": "USD",
      "balance": "8497.50",
      "linkedTransactionId": null,
      "transactionGroupId": "grp_01953e1a5f4b7601",
      "referenceType": "payment",
      "referenceId": "pmt_01953e1a5f4b7005",
      "description": "ACH payment to Globex Corporation",
      "createdAt": "2026-02-23T12:05:00Z"
    }
  ],
  "pagination": {
    "hasMore": true,
    "nextCursor": "<string>"
  }
}

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.

Query Parameters

​
limit
integer
default:50

Maximum number of items to return. Default 50, max 200.

Required range: 1 <= x <= 200
​
starting_after
string

Cursor for forward pagination. Return items created after the item with this ID. Mutually exclusive with ending_before.

​
ending_before
string

Cursor for backward pagination. Return items created before the item with this ID. Mutually exclusive with starting_after.

​
createdAt[gte]
string<date-time>

Filter items created at or after this timestamp.

Example:

"2026-01-01T00:00:00Z"

​
createdAt[lte]
string<date-time>

Filter items created at or before this timestamp.

Example:

"2026-12-31T23:59:59Z"

​
accountId
string

Filter transactions by account ID. Account resource identifier.

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

"acc_01953e1a5f4b7002"

​
customerId
string

Filter transactions by customer ID. Enables cross-account reconciliation. Customer resource identifier.

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

"cus_01953e1a5f4b7000"

​
type
enum<string>

Type of ledger transaction.

Available options:
payment_out,
payment_in,
conversion_debit,
conversion_credit,
transfer_out,
transfer_in,
fee,
auto_conversion_debit,
auto_conversion_credit,
adjustment,
reversal,
collection_in,
collection_fee,
collection_reversal

Response

Transaction list.

​
items
object[]
required
​
pagination
object
required

Cursor-based pagination metadata. Returned on all list endpoints.