---
layout: default
title: REST API reference
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  - /opensearch/rest-api/index/
---

# REST API reference

You can use REST APIs for most operations in OpenSearch. In this reference, we provide a description of the API, and details that include the paths and HTTP methods, supported parameters, and example requests and responses.

Most REST APIs supported by OpenSearch are included in this reference. If you know of any that are missing, feel free to enter feedback or submit a pull request. 
{: .tip }

## Related articles 

- [Alias]({{site.url}}{{site.baseurl}}/api-reference/alias/)
- [Analyze API]({{site.url}}{{site.baseurl}}/api-reference/analyze-apis/index/)
- [CAT APIs]({{site.url}}{{site.baseurl}}/api-reference/cat/index/)
- [Cluster APIs]({{site.url}}{{site.baseurl}}/api-reference/cluster-api/index/)
- [Common parameters]({{site.url}}{{site.baseurl}}/api-reference/common-parameters)
- [Count]({{site.url}}{{site.baseurl}}/api-reference/count/)
- [Document]({{site.url}}{{site.baseurl}}/api-reference/document-apis/index/)
- [Explain]({{site.url}}{{site.baseurl}}/api-reference/explain/)
- [Index APIs]({{site.url}}{{site.baseurl}}/api-reference/index-apis/index/)
- [Ingest APIs]({{site.url}}{{site.baseurl}}/api-reference/ingest-apis/index/)
- [Multi-search]({{site.url}}{{site.baseurl}}/api-reference/multi-search/)
- [Nodes APIs]({{site.url}}{{site.baseurl}}/api-reference/nodes-apis/index/)
- [Popular APIs]({{site.url}}{{site.baseurl}}/api-reference/popular-api/)
- [Ranking evaluation]({{site.url}}{{site.baseurl}}/api-reference/rank-eval/)
- [Reload search analyzer]({{site.url}}{{site.baseurl}}/api-reference/reload-search-analyzer/)
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- [Scroll]({{site.url}}{{site.baseurl}}/api-reference/scroll/)
- [Search]({{site.url}}{{site.baseurl}}/api-reference/search/)
- [Snapshot APIs]({{site.url}}{{site.baseurl}}/api-reference/snapshots/index/)
- [Supported units]({{site.url}}{{site.baseurl}}/api-reference/units/)
- [Tasks]({{site.url}}{{site.baseurl}}/api-reference/tasks/)