> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fiddler.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Complete API reference for fiddler-evals

[![PyPI](https://img.shields.io/pypi/v/fiddler-evals)](https://pypi.org/project/fiddler-evals/)

## Overview

Complete API reference documentation for the fiddler-evals package.

## Components

### Connection

Connection management and initialization

* [Connection](/sdk-api/evals/connection)
* [init](/sdk-api/evals/init)

### Entities

Core entity classes for interacting with the platform

* [Application](/sdk-api/evals/application)
* [Dataset](/sdk-api/evals/dataset)
* [Experiment](/sdk-api/evals/experiment)
* [ExperimentItemStatus](/sdk-api/evals/experiment-item-status)
* [ExperimentStatus](/sdk-api/evals/experiment-status)
* [Project](/sdk-api/evals/project)

### Evaluators

Built-in and custom evaluators for LLM assessment

* [AnswerRelevance](/sdk-api/evals/answer-relevance)
* [Coherence](/sdk-api/evals/coherence)
* [Conciseness](/sdk-api/evals/conciseness)
* [ContextRelevance](/sdk-api/evals/context-relevance)
* [CustomJudge](/sdk-api/evals/custom-judge)
* [CustomJudgeSpec](/sdk-api/evals/custom-judge-spec)
* [EvalFn](/sdk-api/evals/eval-fn)
* [Evaluator](/sdk-api/evals/evaluator)
* [FTLPromptSafety](/sdk-api/evals/ftl-prompt-safety)
* [FTLResponseFaithfulness](/sdk-api/evals/ftl-response-faithfulness)
* [InputFieldSpec](/sdk-api/evals/input-field-spec)
* [Message](/sdk-api/evals/message)
* [OutputField](/sdk-api/evals/output-field)
* [OutputFieldTransform](/sdk-api/evals/output-field-transform)
* [RAGFaithfulness](/sdk-api/evals/rag-faithfulness)
* [RegexMatch](/sdk-api/evals/regex-match)
* [RegexSearch](/sdk-api/evals/regex-search)
* [Sentiment](/sdk-api/evals/sentiment)
* [TopicClassification](/sdk-api/evals/topic-classification)

### Pydantic Models

Pydantic data models and validation schemas

* [DatasetItem](/sdk-api/evals/dataset-item)
* [NewDatasetItem](/sdk-api/evals/new-dataset-item)
* [Score](/sdk-api/evals/score)
* [ScoreStatus](/sdk-api/evals/score-status)

### Runner

Evaluation execution and orchestration

* [evaluate](/sdk-api/evals/evaluate)