--- title: Query Service API description: The Query Service provides REST APIs for executing SQL++ statements, administering Query Service nodes, configuring the Query Service, and managing the JavaScript libraries used to create SQL++ user-defined functions. pubDate: 2026-08-17T09:53:44.266Z antora: editUrl: https://github.com/couchbase/docs-server/edit/release/7.6/modules/n1ql/pages/n1ql-rest-api/intro.adoc xref: xref:7.6@server:n1ql:n1ql-rest-api/intro.adoc[] --- [Consult the llms.txt file for a full list of contents](/llms.txt) [View original HTML](/server/7.6/n1ql/n1ql-rest-api/intro.html) # Query Service API > The Query Service provides REST APIs for executing SQL++ statements, administering Query Service nodes, configuring the Query Service, and managing the JavaScript libraries used to create SQL++ user-defined functions. ## [](#apis-in-this-section)APIs in this Section For a list of the methods and URIs covered in these pages, see the tables below. ### [](#sql-statement-execution)Query Service REST API Use the Query Service REST API to execute SQL++ statements. This REST API uses ports `8093` and `18093`. | HTTP Method | URI | Documented at | | ----------- | -------------- | ----------------------------------------------------------------------- | | POST | /query/service | [Query Service](../../n1ql-rest-query/index.md#post%5Fservice) | | GET | /query/service | [Read-Only Query Service](../../n1ql-rest-query/index.md#get%5Fservice) | ### [](#query-service-administration)Query Admin REST API Use the Query Administration REST API to administer the Query Service at the node level. This REST API uses ports `8093` and `18093`. | HTTP Method | URI | Documented at | | ----------- | -------------------------------------- | --------------------------------------------------------------------------------------------- | | GET | /admin/clusters | [Read All Clusters](../../n1ql-rest-admin/index.md#get%5Fclusters) | | GET | /admin/clusters/{cluster} | [Read a Cluster](../../n1ql-rest-admin/index.md#get%5Fcluster) | | GET | /admin/clusters/{cluster}/nodes | [Read All Nodes](../../n1ql-rest-admin/index.md#get%5Fnodes) | | GET | /admin/clusters/{cluster}/nodes/{node} | [Read a Node](../../n1ql-rest-admin/index.md#get%5Fnode) | | GET | /admin/config | [Read Configuration](../../n1ql-rest-admin/index.md#get%5Fconfig) | | GET | /admin/prepareds | [Retrieve All Prepared Statements](../../n1ql-rest-admin/index.md#get%5Fprepareds) | | GET | /admin/prepareds/{name} | [Retrieve a Prepared Statement](../../n1ql-rest-admin/index.md#get%5Fprepared) | | DELETE | /admin/prepareds/{name} | [Delete a Prepared Statement](../../n1ql-rest-admin/index.md#delete%5Fprepared) | | GET | /admin/indexes/prepareds | [Retrieve Prepared Index Statements](../../n1ql-rest-admin/index.md#get%5Fprepared%5Findexes) | | GET | /admin/active\_requests | [Retrieve All Active Requests](../../n1ql-rest-admin/index.md#get%5Factive%5Frequests) | | GET | /admin/active\_requests/{request} | [Retrieve an Active Request](../../n1ql-rest-admin/index.md#get%5Factive%5Frequest) | | DELETE | /admin/active\_requests/{request} | [Delete an Active Request](../../n1ql-rest-admin/index.md#delete%5Factive%5Frequest) | | GET | /admin/indexes/active\_requests | [Retrieve Active Index Requests](../../n1ql-rest-admin/index.md#get%5Factive%5Findexes) | | GET | /admin/completed\_requests | [Retrieve All Completed Requests](../../n1ql-rest-admin/index.md#get%5Fcompleted%5Frequests) | | GET | /admin/completed\_requests/{request} | [Retrieve a Completed Request](../../n1ql-rest-admin/index.md#get%5Fcompleted%5Frequest) | | DELETE | /admin/completed\_requests/{request} | [Delete a Completed Request](../../n1ql-rest-admin/index.md#delete%5Fcompleted%5Frequest) | | GET | /admin/indexes/completed\_requests | [Retrieve Completed Index Requests](../../n1ql-rest-admin/index.md#get%5Fcompleted%5Findexes) | | GET | /admin/vitals | [Retrieve Vitals](../../n1ql-rest-admin/index.md#get%5Fvitals) | | GET | /admin/stats | [Retrieve All Statistics](../../n1ql-rest-admin/index.md#get%5Fstats) | | GET | /admin/stats/{stats} | [Retrieve a Statistic](../../n1ql-rest-admin/index.md#get%5Fstat) | | GET | /admin/settings | [Retrieve Node-Level Query Settings](../../n1ql-rest-admin/index.md#get%5Fsettings) | | POST | /admin/settings | [Update Node-Level Query Settings](../../n1ql-rest-admin/index.md#post%5Fsettings) | | GET | /admin/ping | [Ping](../../n1ql-rest-admin/index.md#get%5Fping) | | GET | /admin/gc | [Run Garbage Collector](../../n1ql-rest-admin/index.md#get%5Fgc) | | POST | /admin/gc | [Run Garbage Collector and Release Memory](../../n1ql-rest-admin/index.md#post%5Fgc) | ### [](#query-service-settings)Query Settings REST API Use the Query Settings REST API to configure the Query Service at the cluster level. This REST API uses ports `8091` and `18091`. | HTTP Method | URI | Documented at | | ----------- | ------------------------------------- | ----------------------------------------------------------------------------------------- | | GET | /settings/querySettings | [Retrieve Cluster-Level Query Settings](../../n1ql-rest-settings/index.md#get%5Fsettings) | | POST | /settings/querySettings | [Update Cluster-Level Query Settings](../../n1ql-rest-settings/index.md#post%5Fsettings) | | GET | /settings/querySettings/curlWhitelist | [Retrieve CURL Access List](../../n1ql-rest-settings/index.md#get%5Faccess) | | POST | /settings/querySettings/curlWhitelist | [Update CURL Access List](../../n1ql-rest-settings/index.md#post%5Faccess) | ### [](#javascript-management)Query Functions REST API Use the Query Functions REST API to manage the JavaScript libraries and objects used to create SQL++ user-defined functions. This REST API uses ports `8093` and `18093`. | HTTP Method | URI | Documented at | | ----------- | --------------------------------- | ------------------------------------------------------------------------------- | | GET | /evaluator/v1/libraries | [Read All Libraries](../../n1ql-rest-functions/index.md#get%5Fcollection) | | GET | /evaluator/v1/libraries/{library} | [Read a Library](../../n1ql-rest-functions/index.md#get%5Flibrary) | | POST | /evaluator/v1/libraries/{library} | [Create or Update a Library](../../n1ql-rest-functions/index.md#post%5Flibrary) | | DELETE | /evaluator/v1/libraries/{library} | [Delete a Library](../../n1ql-rest-functions/index.md#delete%5Flibrary) | ## [](#see-also)See Also For an explanation of how cluster-level settings, node-level settings, and request-level parameters interact, see [Configure Queries](../n1ql-manage/query-settings.md).