Get Payment Internal Transaction

curl "https://sandbox-api.tender.cash/v1/api/transactions/6a12f0c4e4b0a1b2c3d4e5f1/internal/6a12f0c4e4b0a1b2c3d4e6a7" \
  -H "x-access-id: your-access-id-here" \
  -H "x-request-id: 550e8400-e29b-41d4-a716-446655440000" \
  -H "x-timestamp: 2026-10-15T09:45:53.000Z" \
  -H "authorization: <signature>"

{
  "status": "success",
  "message": "success",
  "data": {
    "id": "6a12f0c4e4b0a1b2c3d4e6a7",
    "parentId": "6a12f0c4e4b0a1b2c3d4e5f1",
    "parentType": "transaction",
    "role": "bridge_deposit",
    "type": "send",
    "status": "completed",
    "chain": "base",
    "asset": "usdc",
    "amount": "99.2",
    "usdAmount": "99.2",
    "txHash": "0x9f2c4be1a7d03e55c81b6fa2d4e7091bc3a5f86d2e0471b9ac5d3f6e8b1027c4",
    "explorerUrl": "https://basescan.org/tx/0x9f2c4be1a7d03e55c81b6fa2d4e7091bc3a5f86d2e0471b9ac5d3f6e8b1027c4",
    "createdAt": "2026-10-15T09:21:03.114Z"
  }
}

{
  "status": "error",
  "message": "Internal transaction not found",
  "data": {}
}

GET

api

transactions

{id}

internal

{internalId}

curl "https://sandbox-api.tender.cash/v1/api/transactions/6a12f0c4e4b0a1b2c3d4e5f1/internal/6a12f0c4e4b0a1b2c3d4e6a7" \
  -H "x-access-id: your-access-id-here" \
  -H "x-request-id: 550e8400-e29b-41d4-a716-446655440000" \
  -H "x-timestamp: 2026-10-15T09:45:53.000Z" \
  -H "authorization: <signature>"

{
  "status": "success",
  "message": "success",
  "data": {
    "id": "6a12f0c4e4b0a1b2c3d4e6a7",
    "parentId": "6a12f0c4e4b0a1b2c3d4e5f1",
    "parentType": "transaction",
    "role": "bridge_deposit",
    "type": "send",
    "status": "completed",
    "chain": "base",
    "asset": "usdc",
    "amount": "99.2",
    "usdAmount": "99.2",
    "txHash": "0x9f2c4be1a7d03e55c81b6fa2d4e7091bc3a5f86d2e0471b9ac5d3f6e8b1027c4",
    "explorerUrl": "https://basescan.org/tx/0x9f2c4be1a7d03e55c81b6fa2d4e7091bc3a5f86d2e0471b9ac5d3f6e8b1027c4",
    "createdAt": "2026-10-15T09:21:03.114Z"
  }
}

{
  "status": "error",
  "message": "Internal transaction not found",
  "data": {}
}

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.

Returns one internal transaction of a payment, for example to check whether its txHash has been broadcast. Get the IDs from List Payment Internal Transactions. An ID is only found under the payment it belongs to. Transaction endpoints use the general limit of 120 requests per minute per merchant. See Rate limits.

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 ID provided by TenderExample: "your-access-id-here"

Path parameters

string

required

The payment ID: the txId returned by Initiate PaymentExample: "6a12f0c4e4b0a1b2c3d4e5f1"

string

required

Internal transaction ID: id from List Payment Internal TransactionsExample: "6a12f0c4e4b0a1b2c3d4e6a7"

Response

string

required

success on successExample: "success"

string

required

Human-readable result messageExample: "success"

object

required

The internal transaction

Show data properties

string

Internal transaction IDExample: "6a12f0c4e4b0a1b2c3d4e6a7"

string

ID of the payment, conversion or payout in the path

string

transaction (a payment), conversion or payout

string

What this transaction did for its parent. See Roles.Example: "conversion_send"

string

send (left your balance) or receive (credited to it)Example: "send"

string

Ledger status, for example pending or completedExample: "completed"

string

Chain the transaction is onExample: "base"

string | null

Coin movedExample: "usdc"

string

Amount of assetExample: "99.2"

string

USD value of amount when recordedExample: "99.2"

string | null

On-chain transaction hash; null until the transaction is broadcast

string | null

Block explorer link for txHash, when the chain has an explorer configured

string | null

ISO 8601 timestampExample: "2026-10-15T09:21:03.114Z"

Additional fields may be added later; ignore fields you don’t recognise.

Roles

`role`	Meaning
`bridge_deposit`	Funds sent into a bridge to move a payment to another chain
`bridge_settlement`	Funds received on the destination chain when the bridge completes
`conversion_send`	The on-chain send that funds a conversion or `internal` fiat payout
`conversion_settlement`	The transaction that credits the result of a conversion

Errors

HTTP	Message	Cause
404	`Internal transaction not found`	The payment isn’t yours, the ID is malformed, or `internalId` isn’t one of this payment’s internal transactions

curl "https://sandbox-api.tender.cash/v1/api/transactions/6a12f0c4e4b0a1b2c3d4e5f1/internal/6a12f0c4e4b0a1b2c3d4e6a7" \
  -H "x-access-id: your-access-id-here" \
  -H "x-request-id: 550e8400-e29b-41d4-a716-446655440000" \
  -H "x-timestamp: 2026-10-15T09:45:53.000Z" \
  -H "authorization: <signature>"

{
  "status": "success",
  "message": "success",
  "data": {
    "id": "6a12f0c4e4b0a1b2c3d4e6a7",
    "parentId": "6a12f0c4e4b0a1b2c3d4e5f1",
    "parentType": "transaction",
    "role": "bridge_deposit",
    "type": "send",
    "status": "completed",
    "chain": "base",
    "asset": "usdc",
    "amount": "99.2",
    "usdAmount": "99.2",
    "txHash": "0x9f2c4be1a7d03e55c81b6fa2d4e7091bc3a5f86d2e0471b9ac5d3f6e8b1027c4",
    "explorerUrl": "https://basescan.org/tx/0x9f2c4be1a7d03e55c81b6fa2d4e7091bc3a5f86d2e0471b9ac5d3f6e8b1027c4",
    "createdAt": "2026-10-15T09:21:03.114Z"
  }
}

{
  "status": "error",
  "message": "Internal transaction not found",
  "data": {}
}

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

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

Path Parameters

string

required

Payment ID

internalId

string

required

Internal transaction ID

Response

The internal transaction

status

string

Example:

"success"

message

string

Example:

"success"

data

object

A ledger transaction Tender recorded to settle a payment, conversion or payout.

Show child attributes

Payment

Transactions

System

Agents

Conversions

Payouts

Subwallets

Webhooks

On-ramp

Get Payment Internal Transaction

Headers

Path parameters

Response

Roles

Errors

Authorizations

Headers

Path Parameters

Response

​Headers

​Path parameters

​Response

​Roles

​Errors

Authorizations

Headers

Path Parameters

Response

Headers

Path parameters

Response

Roles

Errors