Get a ledger entry · Myntkaup API

Scope: transactions:read
Rate-limit class: read
Authentication: Signed

Parameters

idstringpathrequired
Starts with tx_. Example: tx_01JB8X2Q4M7Z3V9K5T1N6R0P2W.
langstring (enum)queryoptional
Label language. Default en.
One of en, is.

Responses

200 OK

The ledger entry. application/json · Transaction

idstring
Starts with tx_.
typestring (enum)
One of trade, deposit, withdrawal, fee, gift, giftcode, referral_bonus, loan, hold, other.
actionstring
labelstring
changesarray of object
3 properties of each item
- assetstring
  An upper-case asset symbol.
  Matches ^[A-Z0-9]{1,15}$.
- amountstring (decimal)
- balance_afterstring (decimal)
created_atstring (date-time)

Every response carries MK-Request-Id, plus RateLimit-Policy and RateLimit.

Errors

Errors use the error envelope. Match on code.

Status	Code	Meaning
400	`invalid_request`	The request is malformed: bad JSON, an unknown or invalid field, or a missing header.
401	`invalid_signature`	The MK-* headers are missing or malformed, the key id is unknown, or the signature doesn't match.
401	`key_expired`	The key has passed its expiry date.
401	`key_revoked`	The key was revoked.
401	`timestamp_out_of_range`	MK-Timestamp is more than 30 seconds from the server clock.
401	`nonce_reused`	This key already used this MK-Nonce.
403	`ip_not_allowed`	The request came from an address outside the key's IP allowlist.
403	`insufficient_scope`	The key doesn't have the scope this endpoint needs.
403	`account_restricted`	The account can't use the API right now (for example locked, inactive, or onboarding not finished).
403	`api_access_disabled`	API access is switched off.
404	`not_found`	No such resource.
429	`rate_limited`	Too many requests. Wait for Retry-After seconds.
429	`too_many_concurrent_requests`	Too many requests in flight for this key or account.
429	`key_suspended`	The key is suspended, for example after sustained rate limiting.
500	`internal_error`	Something went wrong on our side.
502	`bad_gateway`	An upstream service answered unexpectedly.
503	`overloaded`	The service is overloaded. Retry after Retry-After seconds.
503	`service_unavailable`	The service is temporarily unavailable.
504	`gateway_timeout`	An upstream service didn't answer in time. A POST may still complete; retry with the same Idempotency-Key.

# Signed by sign-headers.sh: see Authentication
curl https://public-api.myntkaup.is/v1/transactions/tx_01JB8X2Q4M7Z3V9K5T1N6R0P2W \
  $(./sign-headers.sh GET /v1/transactions/tx_01JB8X2Q4M7Z3V9K5T1N6R0P2W | sed 's/^/-H /')

import { Myntkaup } from "@myntkaup/api";

const client = new Myntkaup(); // reads the key from the environment
const entry = await client.transactions.get("tx_01JB8X2Q4M7Z3V9K5T1N6R0P2W");
console.log(entry.label, entry.changes);

from myntkaup import Myntkaup

client = Myntkaup()  # reads the key from the environment
entry = client.transactions.get("tx_01JB8X2Q4M7Z3V9K5T1N6R0P2W")
print(entry["label"], entry["changes"])

200 OK

{
  "id": "tx_01JB8X2Q4M7Z3V9K5T1N6R0P2W",
  "type": "trade",
  "action": "buy-btc-usdc",
  "label": "Buy BTC",
  "changes": [
    {
      "asset": "USDC",
      "amount": "-100.00",
      "balance_after": "900.00"
    },
    {
      "asset": "BTC",
      "amount": "0.00104210",
      "balance_after": "0.00104210"
    }
  ],
  "created_at": "2026-11-03T10:15:10Z"
}

Base URL https://public-api.myntkaup.is