---
title: "Broadcast Transaction"
method: POST
path: "/v1/cardano/{network}/transaction-submission"
tags: ["Cardano"]
---

# Broadcast Transaction

`POST /v1/cardano/{network}/transaction-submission`

Submits a signed transaction to the Cardano network.

## Request body

- NewTransactionSubmission — Transaction for submission
  - `signed_transaction` string, base64, required — Hex-encoded raw bytes of a protocol-specific signed transaction.

## Response `200`

Transaction for submission response

- TransactionSubmission — Transaction for submission response
  - `protocol` 'cardano', required — Cardano protocol
  - `network` 'mainnet' | 'preprod' | 'localnet', required — Cardano network
  - `transaction_id` string, base58, required — Unique identifier for a transaction
  - `customer_id` string, required — Unique identifier for a customer

## Other responses

- `400` — Invalid request.
- `401` — Unauthorized
- `500` — Internal server error
- `503` — Insufficient validators available to process Stake Intent request

---

[API](https://skmtc.dev/blockdaemon/apis/staking-api.md) · [All operations](https://skmtc.dev/blockdaemon/apis/staking-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/blockdaemon/staking-api/revisions/f94e296a08a3/schema)