YAML ↔ JSON Converter MCP Server

YAML ↔ JSON Converter

Bidirectional conversion between YAML and JSON. Handles complex YAML features: multi-document files, anchors/aliases, flow vs block style, nested mappings and sequences.

Capabilities

• YAML → JSON: Parse YAML (single or multi-document) and output formatted JSON.
• JSON → YAML: Parse JSON and output clean YAML with configurable indentation.
• YAML validation: Check if a YAML string is syntactically valid without converting.

Gotchas

• Multi-document YAML: Files with --- separators produce a JSON array (one element per document).
• YAML tags and custom types: Only standard YAML types are supported (safe_load). Custom tags raise validation errors.
• Large inputs: Inputs over 1MB may be slow. The tool enforces a 5MB hard limit.