# Introduction

[![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](/api/fiddler-evals-sdk/connection/connection.md)
* [init](/api/fiddler-evals-sdk/connection/init.md)

### Entities

Core entity classes for interacting with the platform

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

### Evaluators

Built-in and custom evaluators for LLM assessment

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

### Pydantic Models

Pydantic data models and validation schemas

* [DatasetItem](/api/fiddler-evals-sdk/pydantic-models/dataset-item.md)
* [NewDatasetItem](/api/fiddler-evals-sdk/pydantic-models/new-dataset-item.md)
* [Score](/api/fiddler-evals-sdk/pydantic-models/score.md)
* [ScoreStatus](/api/fiddler-evals-sdk/pydantic-models/score-status.md)

### Runner

Evaluation execution and orchestration

* [evaluate](/api/fiddler-evals-sdk/evaluate.md)


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