---
title: "Highest"
method: POST
path: "/spacemesh.v2alpha1.ActivationService/Highest"
tags: ["ActivationService"]
---

# Highest

`POST /spacemesh.v2alpha1.ActivationService/Highest`

## Request

- Base URL: `https://testnet-api.spacemesh.network`
- URL: `https://testnet-api.spacemesh.network/spacemesh.v2alpha1.ActivationService/Highest`
- Auth: none declared
- TypeScript: <https://skmtc.dev/spacemesh/apis/spacemesh-api/docs/spacemesh.v2alpha1.ActivationService/Highest/post.ts> (a function with typed inputs; its response is checked against the schema)

Highest is a method that takes an "HighestRequest" body and returns an "HighestResponse".
This method is used to retrieve the activation with the highest tick count.

## Request body

- Spacemeshv2alpha1HighestRequest

## Response `200`

A successful response.

- Spacemeshv2alpha1HighestResponse
  - `activation` Spacemeshv2alpha1Activation
    - `coinbase` string
    - `height` string, uint64
    - `id` string, byte
    - `numUnits` integer
    - `publishEpoch` integer
    - `smesherId` string, byte
    - `weight` string, uint64

## Other responses

- `default`: An unexpected error response.

## Changes

- **2025-01-20** `85f7ab3307d9`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/spacemesh/apis/spacemesh-api/changes/spacemesh.v2alpha1.ActivationService/Highest/post.md)

---

[API](https://skmtc.dev/spacemesh/apis/spacemesh-api.md) - [All operations](https://skmtc.dev/spacemesh/apis/spacemesh-api/llms.txt) - [OpenAPI document](https://skmtc.dev/spacemesh/apis/spacemesh-api/revisions/427c8b53574b?raw)