Payload Validator
Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.
Install
Remote streamable-http
https://payload-validator.gumballtools.com/api/mcpClient config (Claude Desktop, Cursor, Windsurf and most MCP clients)
{
"mcpServers": {
"com-gumballtools-payload-validator": {
"url": "https://payload-validator.gumballtools.com/api/mcp"
}
}
} Source: official MCP Registry record · registry name com.gumballtools/payload-validator · published 2026-09-06 · updated 2026-09-06. Not an endorsement; review the code before connecting it to anything sensitive.