mcp-config-tools

MCP server providing configuration file tools for AI agents. Parse, validate, merge, convert, and diff configuration files across all common formats.

Tools

json_config

Read, validate, deep merge, and diff JSON/JSONC configuration files.

• parse — Parse JSONC (JSON with comments and trailing commas)

• validate — Check if content is valid JSON/JSONC

• merge — Deep merge two JSON configs (overlay wins on conflicts)

• diff — Find structural differences between two JSON configs

yaml_config

Read, validate, and convert YAML configuration files.

• parse — Parse YAML content to structured data

• validate — Check if content is valid YAML

• to_json — Convert YAML to JSON

• from_json — Convert JSON to YAML

• validate_schema — Validate against docker-compose, GitHub Actions, or Kubernetes schemas

toml_parser

Parse TOML configuration files (Cargo.toml, pyproject.toml, etc.).

• parse — Parse TOML content to structured data

• extract_section — Extract a specific section by dot-path

• list_deps — List dependencies from Cargo.toml or pyproject.toml

• compare_versions — Compare two semantic version strings

ini_parser

Parse INI and properties configuration files.

• parse — Parse INI content into sections and key-value pairs

• get_sections — List all section names

• get_value — Get a specific key from a section

• to_json — Convert INI to JSON

• from_json — Convert JSON back to INI format

config_diff

Compare two configuration files in any supported format.

• Auto-detects file format (JSON, YAML, TOML, INI)

• Cross-format comparison (e.g., compare a YAML file against a JSON file)

• Shows additions, removals, and changes with full nested paths

Related MCP server: mcp-json-yaml-toml

Setup

npm install
npm run build

MCP Configuration

{
  "mcpServers": {
    "config-tools": {
      "command": "node",
      "args": ["D:/products/mcp-servers/mcp-config-tools/dist/index.js"]
    }
  }
}

Dependencies

• @modelcontextprotocol/sdk — MCP protocol SDK

• yaml — YAML parser and serializer

• Built-in TOML and INI parsers (zero extra dependencies)