> For the complete documentation index, see [llms.txt](https://docs.scicrunch.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.scicrunch.io/elasticsearch-metadata-services/resource-information-network-rin-services/the-rrid-resolver.md).

# The RRID Resolver

## Introduction

The RRID resolver provides the ability to resolve an RRID without the need for an API key. The resolver by default returns information in a structured report.  In addition, results can be retrieved in JSON format.

For example the resolver page for a software tool (fMRIPrep) can be resolved via the following URL: <https://scicrunch.org/resolver/RRID:SCR_016216>

<figure><img src="/files/aYBCkSWA5jTmp7UCq93Z" alt=""><figcaption><p>RRID Resolver Report</p></figcaption></figure>

## Retrieving JSON Metadata for an RRID

## Use the RRID resolver to return metadata in JSON format

<mark style="color:blue;">`GET`</mark> `https://scicrunch.org/resolver/{RRID}.json`

#### Path Parameters

| Name                                   | Type   | Description             |
| -------------------------------------- | ------ | ----------------------- |
| RRID<mark style="color:red;">\*</mark> | String | The RRID being resolved |

{% tabs %}
{% tab title="200: OK RRID Found" %}

{% endtab %}

{% tab title="404: Not Found RRID Not Found" %}

{% endtab %}
{% endtabs %}


---

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