# Configuring Transformer

In the Merlin ecosystem, a Transformer is a service deployed in front of the model service which users can use to perform pre-processing / post-processing steps to the incoming request / outgoing response, to / from the model service. A Transformer allows the user to abstract the transformation logic outside of their model and even write it in a language more performant than python.

Currently, Merlin supports two types of Transformer: Standard and Custom:

{% content-ref url="/pages/rqUwryMOAPo1EMvaqBxk" %}
[Standard Transformer](/user-guides/01_getting_started/03_deploying_a_model/03_configuring_transformers/01_standard_transformer.md)
{% endcontent-ref %}

{% content-ref url="/pages/uPspdAlZPnX6BpGG3S3T" %}
[Custom Transformer](/user-guides/01_getting_started/03_deploying_a_model/03_configuring_transformers/02_custom_transformer.md)
{% endcontent-ref %}


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.caraml.dev/user-guides/01_getting_started/03_deploying_a_model/03_configuring_transformers.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.