MCP Spark Documentation Server

An MCP (Model Context Protocol) server that provides search and retrieval tools for Apache Spark documentation. This server enables AI assistants like Claude to search and read Spark documentation directly.

Features

• Full-text search using SQLite FTS5 with BM25 ranking and Porter stemming
• Section filtering to narrow search results by documentation category
• Sparse checkout for efficient cloning of only the docs directory from apache/spark
• Docker support for portable deployment across projects
• STDIO transport for seamless MCP client integration

Quick Start

Using Docker (Recommended)

# Build the Docker image (includes pre-indexed documentation)
make docker-build

# Test the server
make docker-run

Using uv (Local Development)

# Initialise the environment
make init

# Build the documentation index
make index

# Run the server
make run

Configuration

Claude Code / Claude Desktop

Add to your .mcp.json or global settings:

{
  "mcpServers": {
    "spark-documentation": {
      "command": "docker",
      "args": ["run", "-i", "--rm", "martoc/mcp-spark-documentation:latest"]
    }
  }
}

For a locally built Docker image:

{
  "mcpServers": {
    "spark-documentation": {
      "command": "docker",
      "args": ["run", "-i", "--rm", "mcp-spark-documentation"]
    }
  }
}

For local development without Docker:

{
  "mcpServers": {
    "spark-documentation": {
      "command": "uv",
      "args": ["run", "mcp-spark-documentation"],
      "cwd": "/path/to/mcp-spark-documentation"
    }
  }
}

MCP Tools

Tool	Description
search_documentation	Search Spark documentation by keyword query with optional section filtering
read_documentation	Retrieve the full content of a specific documentation page

search_documentation

Search Apache Spark documentation using full-text search with stemming support.

Parameter	Type	Required	Default	Description
query	string	Yes	-	Search terms (supports stemming)
section	string	No	None	Filter by section (e.g., sql-ref, streaming, mllib)
limit	integer	No	10	Maximum results (1-50)

Common Sections: sql-ref, api, streaming, mllib, graphx, structured-streaming, configuration, tuning

read_documentation

Retrieve the full content of a documentation page.

Parameter	Type	Required	Description
path	string	Yes	Relative path to document (from search results)

CLI Commands

# Build/rebuild the documentation index
uv run spark-docs-index index
uv run spark-docs-index index --rebuild
uv run spark-docs-index index --branch master

# Show index statistics
uv run spark-docs-index stats

Development

make init       # Initialise development environment
make build      # Run full build (lint, typecheck, test)
make test       # Run tests with coverage
make format     # Format code
make lint       # Run linter
make typecheck  # Run type checker

Documentation

• USAGE.md - Detailed usage instructions
• CODESTYLE.md - Code style guidelines
• CLAUDE.md - Claude Code instructions

Licence

This project is licensed under the MIT Licence - see the LICENSE file for details.