---
title: "Send Signed Transaction"
method: POST
path: "/v1/register/send-transaction"
tags: ["registration"]
---

# Send Signed Transaction

`POST /v1/register/send-transaction`

## Request

- Base URL: `https://alive-api.alphakek.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://alive-api.alphakek.ai/v1/register/send-transaction`
- Auth: none declared

Send a signed transaction to the network.

Returns the transaction signature.

## Request body

- SendTransactionRequest: Request to send a signed transaction.
  - `signed_transaction` string, required

## Response `200`

Successful Response

- SendTransactionResponse: Response with transaction signature. `signature` is always present on a 200 response — every failure path in `send_signed_transaction` raises HTTPException. The previous `signature: str | None = None` and `error: str | None` fields were vestigial; removed in PR #164.
  - `signature` string, required

## Other responses

- `422`: Validation Error

## Changes

- **2026-10-16** `b6d96e7673dc`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/alphakek-ai/apis/aikek-api/changes/v1/register/send-transaction/post.md)

---

[API](https://skmtc.dev/alphakek-ai/apis/aikek-api.md) - [All operations](https://skmtc.dev/alphakek-ai/apis/aikek-api/llms.txt) - [OpenAPI document](https://skmtc.dev/alphakek-ai/apis/aikek-api/revisions/b6d96e7673dc?raw)