---
title: "Broadcast a raw transaction using the request body."
method: POST
path: "/api/v2/sendtx/"
tags: ["Transactions"]
---

# Broadcast a raw transaction using the request body.

`POST /api/v2/sendtx/`

Broadcasts hex-encoded raw transaction data from the request body. The
trailing slash is mandatory in the Blockbook handler. POST bodies are
limited to 8 MiB.

Load estimate: High; validates and forwards to the backend, with cost
growing with transaction size and backend mempool policy checks.

## Response `200`

Broadcast result.

- SendTransactionResponse
  - `result` string, required — Broadcast transaction id/hash.

## Other responses

- `default` — Public API error. Public validation errors are HTTP 400; internal errors are HTTP 500.

---

[API](https://skmtc.dev/trezor/apis/blockbook-api.md) · [All operations](https://skmtc.dev/trezor/apis/blockbook-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/trezor/blockbook-api/revisions/01c375da86bc/schema)