Add MediaWiki MCP Server

[alistair3149]

Add MediaWiki MCP Server to the list of Community Servers.

Server Details

• Server: mediawiki-mcp-server
• Changes to: Add to README.md

Motivation and Context

MediaWiki is the most popular wiki platform but there is no existing MCP server listed in the community servers.

How Has This Been Tested?

The MCP server is tested both locally and remotely with multiple MCP clients, including Claude Desktop, VSCode, Cursor. It is also deployed on Smithery.

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [x] Documentation update

Checklist

• [x] I have read the MCP Protocol Documentation
• [x] My changes follows MCP security best practices
• [x] I have updated the server's README accordingly
• [x] I have tested this with an LLM client
• [x] My code follows the repository's style guidelines
• [x] New and existing tests pass locally
• [x] I have added appropriate error handling
• [x] I have documented all environment variables and configuration options