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FRAGMENT
API Reference
Transactions

List History

GET/transactions/{transaction_ref}/history

Gets the version history of a transaction

Path ParametersExpand Collapse
transaction_ref: string

Transaction reference. Accepts either an encoded Fragment ID (txn_xxx) or an external ID.

ReturnsExpand Collapse
data: array of Transaction { id, account, allocations, 9 more }
id: string

User-facing encoded transaction ID.

account: object { id, external_id }

External account reference on transaction responses.

id: string

User-facing encoded account ID.

external_id: string

External account reference ID.

allocations: array of object { amount, invoice_id, type, user }
amount: string

Allocated amount in smallest currency unit as stringified bigint.

invoice_id: string

The invoice this allocation is applied against.

type: "invoice_payin" or "invoice_payout"

The type of allocation.

Accepts one of the following:
"invoice_payin"
"invoice_payout"
user: object { id, external_id }

User reference in API responses: Fragment user id and external_id.

id: string

FRAGMENT generated ID of the user

external_id: string

External ID of the user

amount: string

Amount in smallest currency unit as stringified bigint (can be positive or negative).

created: string

Creation timestamp.

formatdate-time
currency: "ADA" or "BTC" or "DAI" or 176 more

Currency code (ISO 4217 or crypto)

Accepts one of the following:
"ADA"
"BTC"
"DAI"
"ETH"
"SOL"
"USDC"
"USDT"
"USDG"
"EURC"
"CADC"
"CADT"
"XLM"
"UNI"
"BCH"
"LTC"
"AAVE"
"LINK"
"MATIC"
"PTS"
"AED"
"AFN"
"ALL"
"AMD"
"ANG"
"AOA"
"ARS"
"AUD"
"AWG"
"AZN"
"BAM"
"BBD"
"BDT"
"BGN"
"BHD"
"BIF"
"BMD"
"BND"
"BOB"
"BRL"
"BSD"
"BTN"
"BWP"
"BYR"
"BZD"
"CAD"
"CDF"
"CHF"
"CLP"
"CNY"
"COP"
"CRC"
"CUC"
"CUP"
"CVE"
"CZK"
"DJF"
"DKK"
"DOP"
"DZD"
"EGP"
"ERN"
"ETB"
"EUR"
"FJD"
"FKP"
"GBP"
"GEL"
"GGP"
"GHS"
"GIP"
"GMD"
"GNF"
"GTQ"
"GYD"
"HKD"
"HNL"
"HRK"
"HTG"
"HUF"
"IDR"
"ILS"
"IMP"
"INR"
"IQD"
"IRR"
"ISK"
"JMD"
"JOD"
"JPY"
"KES"
"KGS"
"KHR"
"KMF"
"KPW"
"KRW"
"KWD"
"KYD"
"KZT"
"LAK"
"LBP"
"LKR"
"LRD"
"LSL"
"LYD"
"MAD"
"MDL"
"MGA"
"MKD"
"MMK"
"MNT"
"MOP"
"MUR"
"MVR"
"MWK"
"MXN"
"MYR"
"MZN"
"NAD"
"NGN"
"NIO"
"NOK"
"NPR"
"NZD"
"OMR"
"PAB"
"PEN"
"PGK"
"PHP"
"PKR"
"PLN"
"PYG"
"QAR"
"RON"
"RSD"
"RUB"
"RWF"
"SAR"
"SBD"
"SCR"
"SDG"
"SEK"
"SGD"
"SHP"
"SLL"
"SOS"
"SPL"
"SRD"
"SVC"
"SYP"
"STN"
"SZL"
"THB"
"TJS"
"TMT"
"TND"
"TOP"
"TRY"
"TTD"
"TVD"
"TWD"
"TZS"
"UAH"
"UGX"
"USD"
"UYU"
"UZS"
"VEF"
"VND"
"VUV"
"WST"
"XAF"
"XCD"
"XOF"
"XPF"
"YER"
"ZAR"
"ZMW"
"LOGICAL"
"CUSTOM"
external_id: string

External idempotency key provided by the user.

posted: string

Posted timestamp in ISO 8601 format.

formatdate-time
tags: array of object { key, value }

Metadata tags associated with this transaction.

key: string

Tag key

value: string

Tag value

unallocated_amount: string

Read-only amount not yet allocated.

version: number

Current version of the transaction, used for optimistic concurrency control.

modified: optional string

Last modified timestamp.

formatdate-time

List History

curl https://api.us-west-2.fragment.dev/transactions/$TRANSACTION_REF/history
{
  "data": [
    {
      "id": "txn_dHhuX2ZyYWdfMDAx",
      "account": {
        "id": "ext_account_YWJjMTIz",
        "external_id": "acct_external_123"
      },
      "allocations": [
        {
          "amount": "1000",
          "invoice_id": "inv_abc123",
          "type": "invoice_payin",
          "user": {
            "id": "user_abc123",
            "external_id": "user-ext-001"
          }
        }
      ],
      "amount": "-1000",
      "created": "2026-02-12T00:00:00.000Z",
      "currency": "USD",
      "external_id": "bank_txn_123",
      "posted": "2026-02-12T00:00:00.000Z",
      "tags": [
        {
          "key": "region",
          "value": "us-east"
        }
      ],
      "unallocated_amount": "-1000",
      "version": 1,
      "modified": "2026-02-12T01:00:00.000Z"
    }
  ]
}
Returns Examples
{
  "data": [
    {
      "id": "txn_dHhuX2ZyYWdfMDAx",
      "account": {
        "id": "ext_account_YWJjMTIz",
        "external_id": "acct_external_123"
      },
      "allocations": [
        {
          "amount": "1000",
          "invoice_id": "inv_abc123",
          "type": "invoice_payin",
          "user": {
            "id": "user_abc123",
            "external_id": "user-ext-001"
          }
        }
      ],
      "amount": "-1000",
      "created": "2026-02-12T00:00:00.000Z",
      "currency": "USD",
      "external_id": "bank_txn_123",
      "posted": "2026-02-12T00:00:00.000Z",
      "tags": [
        {
          "key": "region",
          "value": "us-east"
        }
      ],
      "unallocated_amount": "-1000",
      "version": 1,
      "modified": "2026-02-12T01:00:00.000Z"
    }
  ]
}