One interface. Different engines.

PostgreSQL

The reference engine — pooled connections, full catalog introspection, visual EXPLAIN, ER diagrams, live health and agent mode.

Transport

pg pool · 5432

Reference

docs/providers/postgres.md

Does not do Nothing held back — every capability in the product ships here, including agent mode.

MySQL

Pooled connections with information_schema introspection, EXPLAIN plans and performance_schema-backed monitoring.

Transport

mysql2 pool · 3306

Reference

docs/providers/mysql.md

Does not do Agent mode is unavailable, as on every engine but PostgreSQL, SQLite, DuckDB and SQL Server.

Oracle

Pooled connections with introspection through the ALL_* data-dictionary views and monitoring through the V$ views, each read guarded because they need privileges an app user may lack.

Transport

oracledb pool · 1521

Reference

docs/providers/oracle.md

Does not do Agent mode is unavailable here. Operate still reads the server's own reporting interface.

SQL Server

Pooled connections with sys.* catalog introspection, DMV-backed monitoring and agent mode under a least-privilege read-only profile.

Transport

mssql pool · 1433

Reference

docs/providers/mssql.md

Does not do The editor has no Explain action: SQL Server's estimated plan is a session mode that a statement prefix cannot express. Only agent mode reads a plan, to admit a statement.

Db2 LUW

IBM Db2 for Linux, UNIX and Windows over DRDA, through a Rust driver that needs no IBM client. Schema introspection, server-side paging, inline edits on tables, and RUNSTATS and REORG one table at a time.

Transport

drda · 50000

Reference

docs/providers/db2.md

Does not do No EXPLAIN, no query cancel and no Studio-side timeout in this version, and most monitoring panels are empty on purpose. Db2 for z/OS and for IBM i are out of scope.

SQLite

The embedded engine — a file, no network. Full editor, ER diagrams, EXPLAIN and agent mode.

Transport

file · embedded

Reference

docs/providers/sqlite.md

Does not do There is no server to monitor: health reads file size and pragma statistics only.

libSQL

SQLite's dialect over the network — Turso and self-hosted sqld, spoken natively.

Transport

hrana · 8080 (443 with TLS)

Reference

docs/providers/libsql.md

Does not do Monitoring reads only what SQLite pragmas and dbstat answer over Hrana: no uptime, cache hit ratio, slow queries or sessions, because libSQL publishes none.

DuckDB

In-process analytics with full EXPLAIN support and agent mode. Admins can query Parquet and CSV files directly; every other role is confined to the database file.

Transport

file · embedded

Reference

docs/providers/duckdb.md

Does not do Single-writer by design: no sessions to list, so health shows storage, not connections.

ClickHouse

HTTP interface with system.* introspection, EXPLAIN plans that show index usage, and query-log monitoring.

Transport

http · 8123

Reference

docs/providers/clickhouse.md

Does not do No foreign keys exist, so ER diagrams show structure without discovered relations.

Apache Druid

SQL over HTTP with datasource and segment introspection for streaming analytics.

Transport

http · 8888

Reference

docs/providers/druid.md

Does not do Append-oriented: row editing is disabled rather than offered and then failed.

Databend

Self-hosted Databend and Databend Cloud warehouses over its own HTTP query API, with no driver. Catalogs, databases, tables, views and dynamic tables in the tree, EXPLAIN on a SELECT, and monitoring from system tables.

Transport

http · 8000

Reference

docs/providers/databend.md

Does not do No inline row or object edit: Databend declares no keys, so a row has no identity to update. Transactions are not exposed, and EXPLAIN ANALYZE is never sent.

Trino

Federated SQL — one query across the catalogs you already have, from object storage to RDBMS.

Transport

http · 8080

Reference

docs/providers/trino.md

Does not do Trino queries catalogs; it does not manage a lakehouse. Writes depend on the underlying connector.

MongoDB

Document browsing, aggregation pipelines and index introspection over the native driver.

Transport

driver · 27017

Reference

docs/providers/mongodb.md

Does not do No SQL translation layer is faked — queries here are MongoDB queries.

Couchbase

SQL++ queries with bucket, scope and collection introspection over the documented REST surfaces.

Transport

http · 8091

Reference

docs/providers/couchbase.md

Does not do Agent mode is unavailable, as on every engine but PostgreSQL, SQLite, DuckDB and SQL Server.

Redis

Key browsing by pattern, type-aware value views and INFO-backed live monitoring.

Transport

resp · 6379

Reference

docs/providers/redis.md

Does not do No SQL, and none is pretended — the editor speaks commands here.

etcd

Reads and writes a cluster through a subset of the etcdctl command line, with keys grouped by prefix and an admin's compaction, defragmentation and alarm disarm. Kubernetes-aware.

Transport

grpc · 2379

Reference

docs/providers/etcd.md

Does not do Writes under Kubernetes' own prefixes are refused before anything is sent, and Kubernetes secrets, protobuf and encrypted values are withheld on every surface. No agent execution and no MCP.

Oxia

Key lookups, lists and range scans over an Oxia namespace, written as oxia client commands, with its shards in the tree and every key in the Keys panel.

Transport

grpc · 6648

Reference

docs/providers/oxia.md

Does not do Read-only whatever the toggle says: Oxia has no authorization and usually holds Pulsar's metadata, so writes, watches and sessions wait for a design of their own.

LibreDB

The embedded ordered key-value store — a file, no server and no wire protocol. Mapped onto the interface by convention rather than by emulating SQL.

Transport

file · embedded

Reference

docs/providers/libredb.md

Does not do No sessions and no index objects exist, so those two panels are absent with their reason rather than answered empty. Maintenance operations are refused, not faked.

Cassandra

CQL editor with keyspace, table and type introspection for wide-column data.

Transport

cql · 9042

Reference

docs/providers/cassandra.md

Does not do No joins and no EXPLAIN — the grid respects partition-key query rules instead of hiding them.

Neo4j

Cypher over Bolt, with node labels, relationship types, indexes and constraints in the tree, and a Graph tab that draws the nodes and relationships a result returns.

Transport

bolt · 7687

Reference

docs/providers/neo4j.md

Does not do Read-only by construction: a read policy, the server's own classification and a READ session stand between a statement and a write. No EXPLAIN or PROFILE, no APOC and no LOAD CSV.

Milvus

Collections, exact counts, queries and vector searches over the gRPC API, typed as Milvus's own REST requests, with integers above 2^53 kept exact.

Transport

grpc · 19530

Reference

docs/providers/milvus.md

Does not do Reads only — an admin's Load and Release are the one state change, and a collection is never loaded implicitly. Server-side functions, model rankers and calls to an embedding provider are refused.

Qdrant

Collections, point reads, scrolls, counts, facets and queries over dense, sparse and multivector data, written as Qdrant's own REST requests.

Transport

http · 6333

Reference

docs/providers/qdrant.md

Does not do Writes nothing — every request is one of seventeen reads — and refuses every server-side inference input except the local BM25 model.

Elasticsearch

Elasticsearch SQL over indices, with mapping introspection and cluster health.

Transport

http · 9200

Reference

docs/providers/elasticsearch.md

Does not do Search engines are query-and-browse: no row editing, no ER diagrams.

OpenSearch

The same query-and-browse surface as Elasticsearch, against OpenSearch clusters.

Transport

http · 9200

Reference

docs/providers/opensearch.md

Does not do Search engines are query-and-browse: no row editing, no ER diagrams.

Prometheus

PromQL over the HTTP API, with the metric, rule and target browser beside it.

Transport

http · 9090

Reference

docs/providers/prometheus.md

Does not do Read-only: Studio calls the read APIs only, so there is nothing to write back.

InfluxDB (InfluxQL)

InfluxQL over the v1 query API on InfluxDB 1.x, 2.x and 3, with databases, measurements, tag keys and field keys in the tree.

Transport

http · 8086

Reference

docs/providers/influxdb.md

Does not do Read-only whatever the toggle says, and no Flux: Flux is a server-side language, and on a read-only token it still made the server issue HTTP requests, so no read-only Flux policy can be sound.

InfluxDB 3 (SQL)

InfluxDB 3 in SQL over /api/v3/query_sql, the DataFusion dialect its server runs: the tables of one database, their columns and their newest rows.

Transport

http · 8181

Reference

docs/providers/influxdb3.md

Does not do Read-only, with no maintenance. Cloud Serverless and Cloud Dedicated serve SQL only over Arrow Flight, which Studio does not use; reach them with the InfluxQL type.

Apache Kafka

Topic, group and broker browser that reads by offset or by time.

Transport

kafka · 9092

Reference

docs/providers/kafka.md

Does not do Read-only: it reads records, it does not produce them.