---
title: "GET /blocks/top"
method: GET
path: "/blocks/top"
tags: ["external", "chain"]
---

# GET /blocks/top

`GET /blocks/top`

Get the top block (either key or micro block)

## Response `200`

Successful operation

- KeyBlockOrMicroBlockHeader
  - `key_block` KeyBlock
    - `hash` string, required — Base58Check encoded tagged hash
    - `height` integer, required
    - `prev_hash` string, required — Base58Check encoded tagged hash
    - `prev_key_hash` string, required — Base58Check encoded tagged hash
    - `state_hash` string, required — Base58Check encoded tagged hash
    - `miner` string, required — Base58Check encoded tagged pubkey
    - `beneficiary` string, required — Base58Check encoded tagged pubkey
    - `target` integer, required
    - `pow` UInt32[]
    - `nonce` integer
    - `time` integer, required
    - `version` integer, required
    - `info` string, required — Base64Check encoded tagged byte array
  - `micro_block` MicroBlockHeader
    - `hash` string, required — Base58Check encoded tagged hash
    - `height` integer, required
    - `pof_hash` string, required — Base58Check encoded tagged hash
    - `prev_hash` string, required — Base58Check encoded tagged hash
    - `prev_key_hash` string, required — Base58Check encoded tagged hash
    - `state_hash` string, required — Base58Check encoded tagged hash
    - `txs_hash` string, required — Base58Check encoded tagged hash
    - `signature` string, required — Base58Check encoded tagged value
    - `time` integer, required
    - `version` integer, required

## Other responses

- `404` — Block not found
- `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)