---
title: "Get a single block header by hash in binary format."
method: GET
path: "/api/v1/header/{hash}"
tags: ["header"]
---

# Get a single block header by hash in binary format.

`GET /api/v1/header/{hash}`

## Path parameters

- `hash` string, required

## Response `200`

Binary data response

- integer[]

## Other responses

- `400` — Error response
- `404` — Error response

---

[API](https://skmtc.net/bsv-blockchain/apis/teranode-asset-service-api.md) · [All operations](https://skmtc.net/bsv-blockchain/apis/teranode-asset-service-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/bsv-blockchain/teranode-asset-service-api/versions/5bc9be41e029/schema)