English Français العربية

Payload Validator

Official registry Data and databases

Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.

Source code Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http payload-validator 'https://payload-validator.gumballtools.com/api/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "payload-validator": {
            "type": "http",
            "url": "https://payload-validator.gumballtools.com/api/mcp"
        }
    }
}

Frequently asked questions

What is Payload Validator?

Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.

How do I install Payload Validator?

It runs as a remote server. In Claude Code: claude mcp add --transport http payload-validator 'https://payload-validator.gumballtools.com/api/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Payload Validator need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Payload Validator open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Payload Validator?

It is published by bwalvoord. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.