MCP Server Couchbase

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by couchbase

MCP Server to interact with data in Couchbase Clusters

Install

$uvx couchbase-mcp-server --disabled-tools upsert_document_by_id, delete_document_by_id

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Tools (33)

build_index

Trigger the build of all deferred indexes on a collection. Disabled by default when CBMCPREADONLYMODE=true.

create_collection

Create a new collection in an existing scope (Couchbase Server 7.6+ and Capella). Disabled by default when CBMCPREADONLYMODE=true.

create_index

Create a scalar (non-vector) GSI secondary index on a collection. Deferred by default — call buildindex afterward to build it. Disabled by default when CBMCPREADONLYMODE=true.

create_scope

Create a new scope in a bucket (Couchbase Server 7.6+ and Capella). Disabled by default when CBMCPREADONLYMODE=true.

delete_collection

Delete a collection and all its documents from a scope — permanent. Disabled by default when CBMCPREADONLYMODE=true.

delete_document_by_id

Delete a document by ID from a specified scope and collection. Disabled by default when CBMCPREADONLYMODE=true.

delete_scope

Delete a scope and all its collections from a bucket — permanent. Disabled by default when CBMCPREADONLYMODE=true.

drop_index

Drop a GSI index (scalar or vector) from a collection. Disabled by default when CBMCPREADONLYMODE=true.

explain_sql_plus_plus_query

Generate and evaluate an EXPLAIN plan for a SQL++ query. Returns query metadata, extracted plan, and plan evaluation findings.

get_buckets_in_cluster

Get a list of all the buckets in the cluster

get_cluster_health_and_services

Get cluster health status and list of all running services

get_collections_in_scope

Get a list of all the collections in a specified scope and bucket. Note that this tool requires the cluster to have Query service.

get_document_by_id

Get a document by ID from a specified scope and collection

get_index_advisor_recommendations

Get index recommendations from Couchbase Index Advisor for a given SQL++ query to optimize query performance

get_longest_running_queries

Get longest running queries by average service time

get_most_frequent_queries

Get most frequently executed queries

get_queries_not_selective

Get queries that are not selective (index scans return many more documents than final result)

get_queries_not_using_covering_index

Get queries that don't use a covering index

get_queries_using_primary_index

Get queries that use a primary index (potential performance concern)

get_queries_with_large_result_count

Get queries with the largest result counts

get_queries_with_largest_response_sizes

Get queries with the largest response sizes

get_schema_for_collection

Get the structure for a collection

get_scopes_and_collections_in_bucket

Get a list of all the scopes and collections in the specified bucket

get_scopes_in_bucket

Get a list of all the scopes in the specified bucket

get_server_configuration_status

Get the server status and configuration without connecting to the cluster — reports read-only mode, disabled/confirmation-required tools, OAuth settings, and the resolved logging configuration

insert_document_by_id

Insert a new document by ID (fails if document exists). Disabled by default when CBMCPREADONLYMODE=true.

list_indexes

List all indexes in the cluster with their definitions, with optional filtering by bucket, scope, collection and index name. Set returnrawindexstats=true to return the unprocessed index information.

lookup_subdocument

Look up parts of a document (specific fields, existence checks, or array/object counts) by path without fetching the whole document

mutate_subdocument

Modify parts of an existing document (upsert, insert, replace, remove, array ops, counters) by path without rewriting the whole document. Disabled by default when CBMCPREADONLYMODE=true.

replace_document_by_id

Replace an existing document by ID (fails if document doesn't exist). Disabled by default when CBMCPREADONLYMODE=true.

run_sql_plus_plus_query

Run a SQL++ query on a specified scope.<br><br>Queries are automatically scoped to the specified bucket and scope, so use collection names directly (e.g., SELECT FROM users instead of SELECT FROM bucket.scope.users).<br><br>CBMCPREADONLYMODE is true by default, which means that all write operations

test_cluster_connection

Check the cluster credentials by connecting to the cluster

upsert_document_by_id

Upsert a document by ID to a specified scope and collection. Disabled by default when CBMCPREADONLYMODE=true.