MCP Iceberg Catalog
[](https://smithery.ai/server/@ahodroj/mcp-iceberg-service)
A MCP (Model Context Protocol) server implementation for interacting with Apache Iceberg. This server provides a SQL interface for querying and managing Iceberg tables through Claude desktop.
Claude Desktop as your Iceberg Data Lake Catalog
How to Install in Claude Desktop
Installing via Smithery
To install MCP Iceberg Catalog for Claude Desktop automatically via [Smithery](https://smithery.ai/server/@ahodroj/mcp-iceberg-service):
- **Prerequisites** - Python 3.10 or higher - UV package installer (recommended) or pip - Access to an Iceberg REST catalog and S3-compatible storage
- **How to install in Claude Desktop** Add the following configuration to `claude_desktop_config.json`:
Design
Architecture
The MCP server is built on three main components:
- **MCP Protocol Handler** - Implements the Model Context Protocol for communication with Claude - Handles request/response cycles through stdio - Manages server lifecycle and initialization
- **Query Processor** - Parses SQL queries using `sqlparse` - Supports operations: - LIST TABLES - DESCRIBE TABLE - SELECT - INSERT
- **Iceberg Integration** - Uses `pyiceberg` for table operations - Integrates with PyArrow for efficient data handling - Manages catalog connections and table operations
PyIceberg Integration
The server utilizes PyIceberg in several ways:
- **Catalog Management** - Connects to REST catalogs - Manages table metadata - Handles namespace operations
- **Data Operations** - Converts between PyIceberg and PyArrow types - Handles data insertion through PyArrow tables - Manages table schemas and field types
- **Query Execution** - Translates SQL to PyIceberg operations - Handles data scanning and filtering - Manages result set conversion
Further Implementation Needed
- **Query Operations** - [ ] Implement UPDATE operations - [ ] Add DELETE support - [ ] Support for CREATE TABLE with schema definition - [ ] Add ALTER TABLE operations - [ ] Implement table partitioning support
- **Data Types** - [ ] Support for complex types (arrays, maps, structs) - [ ] Add timestamp with timezone handling - [ ] Support for decimal types - [ ] Add nested field support
- **Performance Improvements** - [ ] Implement batch inserts - [ ] Add query optimization - [ ] Support for parallel scans - [ ] Add caching layer for frequently accessed data
- **Security Features** - [ ] Add authentication mechanisms - [ ] Implement role-based access control - [ ] Add row-level security - [ ] Support for encrypted connections
- **Monitoring and Management** - [ ] Add metrics collection - [ ] Implement query logging - [ ] Add performance monitoring - [ ] Support for table maintenance operations
- **Error Handling** - [ ] Improve error messages - [ ] Add retry mechanisms for transient failures - [ ] Implement transaction support - [ ] Add data validation