json5-mcp

MCP server: parse and stringify JSON5. Use this when you've got a config file with comments, trailing commas, or unquoted keys that plain JSON would choke on.

Tools

parse

{ "text": "{ /* settings */ retries: 3, hosts: ['a', 'b'], }" }

→ { "value": { "retries": 3, "hosts": ["a", "b"] } }

Accepts the full JSON5 grammar: block + line comments, unquoted keys, single-quoted strings, trailing commas, hex numbers, leading/trailing decimal points, +Infinity, NaN.

stringify

{ "value": { "a": 1, "b": [2, 3] }, "indent": 2 }

→ JSON5 output (still valid JSON when indent=0).

Configure

{ "mcpServers": { "json5": { "command": "npx", "args": ["-y", "@mukundakatta/json5-mcp"] } } }

License

MIT.