opensearch-docs-cn/_api-reference/index.md

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title: REST API reference
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# REST API reference
**Introduced 1.0**
{: .label .label-purple }

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.

This reference includes the REST APIs supported by OpenSearch. If a REST API is missing, please provide feedback or submit a pull request in GitHub.
{: .tip }

## Related articles 

- [Analyze API]({{site.url}}{{site.baseurl}}/api-reference/analyze-apis/)
- [Access control API]({{site.url}}{{site.baseurl}}/security/access-control/api/)
- [Alerting API]({{site.url}}{{site.baseurl}}/observing-your-data/alerting/api/)
- [Anomaly detection API]({{site.url}}{{site.baseurl}}/observing-your-data/ad/api/) 
- [CAT APIs]({{site.url}}{{site.baseurl}}/api-reference/cat/index/)
- [Cluster APIs]({{site.url}}{{site.baseurl}}/api-reference/cluster-api/index/)
- [Common REST parameters]({{site.url}}{{site.baseurl}}/api-reference/common-parameters/)
- [Count]({{site.url}}{{site.baseurl}}/api-reference/count/)
- [Cross-cluster replication API]({{site.url}}{{site.baseurl}}/tuning-your-cluster/replication-plugin/api/)
- [Document APIs]({{site.url}}{{site.baseurl}}/api-reference/document-apis/index/)
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- [k-NN plugin API]({{site.url}}{{site.baseurl}}/search-plugins/knn/api/)
- [ML Commons API]({{site.url}}{{site.baseurl}}/ml-commons-plugin/api/) 
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- [Nodes APIs]({{site.url}}{{site.baseurl}}/api-reference/nodes-apis/index/)
- [Notifications API]({{site.url}}{{site.baseurl}}/observing-your-data/notifications/api/)
- [Performance analyzer API]({{site.url}}{{site.baseurl}}/monitoring-your-cluster/pa/api/)
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- [Popular APIs]({{site.url}}{{site.baseurl}}/api-reference/popular-api/)
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- [Refresh search analyzer]({{site.url}}{{site.baseurl}}/im-plugin/refresh-analyzer/)
- [Remove cluster information]({{site.url}}{{site.baseurl}}/api-reference/remote-info/)
- [Root cause analysis API]({{site.url}}{{site.baseurl}}/monitoring-your-cluster/pa/rca/api/)
- [Snapshot management API]({{site.url}}{{site.baseurl}}/tuning-your-cluster/availability-and-recovery/snapshots/sm-api/)
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- [Snapshot APIs]({{site.url}}{{site.baseurl}}/api-reference/snapshots/index/)
- [Stats API]({{site.url}}{{site.baseurl}}/tuning-your-cluster/availability-and-recovery/stats-api/)
- [Supported units]({{site.url}}{{site.baseurl}}/api-reference/units/)
- [Tasks]({{site.url}}{{site.baseurl}}/api-reference/tasks/)
- [Transforms API]({{site.url}}{{site.baseurl}}/im-plugin/index-transforms/transforms-apis/)