Payload Validator

com.gumballtoolsv0.1.0Updated Sep 25, 2026

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

VerifiedStreamable HTTPWeb executableSecurity & MonitoringData & Analytics

Installation

In SourceWeft

  1. Open Payload Validator in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "payload-validator": {
      "type": "http",
      "url": "https://payload-validator.gumballtools.com/api/mcp"
    }
  }
}

Tools

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Version history

1
  1. v0.1.0LatestSep 16, 2026