---
title: "POST /transactions"
method: POST
path: "/transactions"
tags: ["external", "transaction"]
---

# POST /transactions

`POST /transactions`

Post a new transaction

## Request body

- Tx
  - `tx` string, required — Base64Check encoded tagged byte array

## Response `200`

Successful operation

- PostTxResponse
  - `tx_hash` string, required — Base58Check encoded tagged hash

## Other responses

- `400` — Invalid transaction
- `503` — The node is temporarily unable to handle the request: either its request queues are saturated (overload protection) or it has not yet reached a stable mode. Overload protection is applied to every endpoint, so this response can be returned by any operation. The Retry-After header tells the client how long to back off before retrying.

---

[API](https://skmtc.net/aeternity/apis/aeternity-node.md) · [All operations](https://skmtc.net/aeternity/apis/aeternity-node/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/aeternity/aeternity-node/versions/597a254980b2/schema)