Plugs JSON, YAML, and CSV manipulation directly into Claude through stdio. You get seven tools: schema validation with detailed error paths, structural diffs showing what changed where, transformations like pick/rename/flatten, and bidirectional conversion between all three formats with configurable delimiters and type casting. Useful when you're building workflows that need to validate API payloads against schemas, compare configuration files, reshape data structures without writing throwaway scripts, or convert between formats during data pipeline work. Install via npm, point Claude Desktop or Claude Code at the built index.js, and the tools appear in your agent's toolkit.
claude mcp add --transport stdio io.github.rog0x-json -- npx -y @rog0x/mcp-json-tools