---
title: "Submit a transaction"
method: POST
path: "/tx/submit"
tags: ["Cardano » Transactions"]
---

# Submit a transaction

`POST /tx/submit`

Submit an already serialized transaction to the network.

<p>
  <span class="hosted">Hosted</span> Endpoint only available for hosted variant.
</p>

## Response `200`

Return the ID of the submitted transaction.

- string, hex

## Other responses

- `400` — Bad request
- `403` — Authentication secret is missing or invalid
- `404` — Component not found
- `418` — IP has been auto-banned for extensive sending of requests after usage limit has been reached
- `425` — Mempool is already full, not accepting new txs straight away
- `429` — Usage limit reached
- `500` — Internal Server Error

---

[API](https://skmtc.net/txpipe/apis/blockfrost-io-api-documentation.md) · [All operations](https://skmtc.net/txpipe/apis/blockfrost-io-api-documentation/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/txpipe/blockfrost-io-api-documentation/revisions/4a2f67b16876/schema)