Transaction Failed (transaction_failed)

HTTP 400Horizon RFC 7807 ProblemCode: transaction_failed

Type URI: https://orion.stellarchain.io/horizon-errors/transaction_failed

The transaction was well-formed XDR, but Stellar Core rejected it or one of its operations failed during execution.

Quick Fix & Resolution

Inspect extras.result_codes.transaction and extras.result_codes.operations in the response and consult the Transaction Result Codes and Operation Result Codes reference.

Response Payload & SDK Handling

RFC 7807 JSON Response

{
  "type": "https://orion.stellarchain.io/horizon-errors/transaction_failed",
  "title": "Transaction Failed",
  "status": 400,
  "detail": "The transaction failed when submitted to the stellar network. The `extras.result_codes` field on this response contains further details.",
  "extras": {
    "envelope_xdr": "AAAAAgAAAADdfhHDs4Vaug6p8Oxb1QRjNRdJt3pYKKBVhFHrEgd9QAAAAAoAEi4YAAAAAwAAAAE...",
    "result_codes": {
      "transaction": "tx_failed",
      "operations": [
        "op_underfunded"
      ]
    },
    "result_xdr": "AAAAAAAAAGT/////AAAAAQAAAAAAAAAB////+wAAAAA="
  }
}

TypeScript (@stellar/stellar-sdk)

import { Horizon } from '@stellar/stellar-sdk';

const server = new Horizon.Server('https://pubnet.stellarchain.io');

try {
  const res = await server.ledgers().limit(10).call();
} catch (err: any) {
  const problem = err?.response?.data;
  if (problem?.type === 'https://orion.stellarchain.io/horizon-errors/transaction_failed') {
    console.error('[transaction_failed] HTTP 400:', problem.detail, problem.extras);
  }
}

Go (horizonclient)

client := &horizonclient.Client{
    HorizonURL: "https://pubnet.stellarchain.io",
}
_, err := client.Root()
if hErr := horizonclient.GetError(err); hErr != nil {
    if hErr.Problem.Status == 400 {
        log.Printf("Problem (%s): %s - extras=%v", hErr.Problem.Type, hErr.Problem.Detail, hErr.Problem.Extras)
    }
}

cURL Diagnostic

curl -i -s "https://pubnet.stellarchain.io/" \
  -H "Accept: application/hal+json"

Common Root Causes

• Insufficient XLM or asset balance (op_underfunded, tx_insufficient_balance).
• Invalid sequence number (tx_bad_seq).
• Missing or invalid signatures (tx_bad_auth, op_bad_auth).
• Missing trustline on destination account (op_no_trust).
• Minimum fee not met (tx_insufficient_fee).

XDR Result Codes Reference (extras.result_codes)

Result Code Level	Documentation Link	Description
Transaction (tx_*)	Transaction Result Codes	tx_failed, tx_bad_seq, tx_insufficient_balance, tx_insufficient_fee, tx_bad_auth
Operation (op_*)	Operation Result Codes	op_underfunded, op_no_trust, op_bad_auth, op_line_full, op_low_reserve
Operation-Specific	13 Operation Tables	Detailed per-operation failure matrices for Payments, Offers, Trustlines, and Account Merge

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