---
title: StreamSlotMetricsRequest
description: StreamSlotMetricsRequest subscribes to per-slot metrics updates.
source_url:
  html: https://thru.org/docs/api-ref/grpc/messages/thru/services/v1/stream-slot-metrics-request/
  md: https://thru.org/docs/api-ref/grpc/messages/thru/services/v1/stream-slot-metrics-request.md
---

# StreamSlotMetricsRequest

StreamSlotMetricsRequest subscribes to per-slot metrics updates. Metrics are emitted after each block’s execution completes.

**Package:** `thru.services.v1`

## Fields

| Field | Type | # | Description |
| - | - | - | - |
| `start_slot` | `uint64` | 1 · optional | Optional starting slot. If specified, starts streaming from this slot. If not specified, starts from the next executed slot. |