---
title: Estimator (latest version)
description: API reference for qiskit_ibm_runtime.server_side.estimator.Estimator in the latest version of qiskit-ibm-runtime
source: https://quantum.cloud.ibm.com/docs/en/api/qiskit-ibm-runtime/server-side-estimator-estimator
---

# Estimator

*class* `Estimator`

[GitHub](https://github.com/Qiskit/qiskit-ibm-runtime/tree/stable/0.52/qiskit_ibm_runtime/server_side/estimator.py#L57-L60)

Bases: `object`

Base class for Qiskit Runtime Estimator.

## Attributes

### version

Default value: `0`

## Methods