Database Explorer Pro is the most comprehensive database MCP server available. One server connects to 12 database engines — both SQL and NoSQL — with 23 purpose-built tools for schema exploration, querying, performance analysis, and code object introspection.

Supported engines: PostgreSQL, MySQL, MariaDB, Microsoft SQL Server (2008+), SQLite, Oracle, MongoDB, Couchbase, Redis, Valkey, Elasticsearch, and DynamoDB.

Pass your connection details with each tool call. No saved credentials, no configuration files, no vendor lock-in. Connect to your entire database stack from Claude, Cursor, VS Code, Windsurf, or any MCP-compatible AI assistant.

Free tools include database listing, table/collection browsing, schema inspection, full query execution, data sampling, and server info. Pro unlocks deep schema intelligence: stored procedure source code, trigger definitions, view and function source, foreign key mapping, index management, execution plan analysis, and full DDL export.

Every tool supports an optional SSL/TLS flag for encrypted connections. The query tool includes an optional readonly parameter that acts as an extra safety net when you need to ensure no data is modified — even if your credentials have write access. When readonly is enabled, write operations (INSERT, UPDATE, DELETE, DROP, and more) are blocked at the application level across all engines, and for PostgreSQL and MySQL/MariaDB, the connection itself is set to read-only mode at the driver level for an additional layer of protection. This is ideal when exploring production databases, onboarding new team members, or letting an AI assistant query sensitive data without the risk of accidental modifications. Readonly is off by default — full CRUD is available when you need it.

Built for developers migrating legacy systems, exploring unfamiliar databases, managing multi-engine environments, or giving their AI assistant direct database access.