Unicode Steganography Puzzles

Unicode-Puzzles-MCP is a server implementation for creating and managing steganography puzzles that hide messages within Unicode characters. It integrates with symbl.cc to access specialized Unicode characters (including zero-width, quantum, and special categories) and provides endpoints for puzzle creation, encoding/decoding messages, and character searching. The server features template-based puzzle generation with configurable difficulty levels, rate-limited API access to external services, and persistent storage of puzzle metadata in MCP memory, making it particularly valuable for creating educational challenges or security demonstrations involving hidden text.