Payload Validator for Claude Code
com.gumballtools/payload-validator
Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.
client:Claude Code
transport:streamable-http
tools:5
Install Payload Validator in Claude Code
run in your project directory
claude mcp add --transport http payload-validator https://payload-validator.gumballtools.com/api/mcpAdds it for this project only. Append --scope user to make it available everywhere. Claude Code docs