Sql Query Result Serialization For Mcp Transport

via “query result serialization to json with type preservation”

A Model Context Protocol (MCP) server that enables secure interaction with MySQL databases

Unique: Implements automatic type mapping from MySQL types to JSON-compatible representations, preserving semantic type information (e.g., DATETIME as ISO 8601 strings, DECIMAL as numeric strings) rather than converting all values to generic strings

vs others: More semantically rich than generic CSV export because type information is preserved, enabling AI to reason about data types, and more precise than floating-point conversion because DECIMAL types are serialized as strings to avoid precision loss

A PostgreSQL MCP server built with @modelcontextprotocol/sdk.

Unique: Leverages the pg library's built-in type parsing to handle PostgreSQL-specific types, then applies custom serialization logic to convert them to JSON. Preserves type information in the response so the LLM understands the semantic meaning of each field.

vs others: More complete than simple JSON.stringify() and more maintainable than custom type handlers, as it builds on pg's type system which is updated with PostgreSQL versions.

via “sql query execution with result streaming”

Database Explorer MCP Tool - PostgreSQL, MySQL ve Firestore veritabanları için yönetim aracı

Unique: Exposes SQL query execution as an MCP tool with result streaming, enabling LLM agents to execute dynamic queries while managing memory through pagination rather than loading entire result sets into context

vs others: Safer than giving agents direct database access; MCP tool interface provides audit trail and allows for query validation/filtering before execution