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Varyntiq

Official registry Finance and payments

Pre-payment checks for AI agents: x402 quotes, untrusted prompts and audit receipts.

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 varyntiq 'https://payguard-production-abfe.up.railway.app/mcp' --header 'Authorization: <Bearer client token from https://payguard-production-abfe.up.railway.app/register (free, one-time display)>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "varyntiq": {
            "type": "http",
            "url": "https://payguard-production-abfe.up.railway.app/mcp",
            "headers": {
                "Authorization": "<Bearer client token from https://payguard-production-abfe.up.railway.app/register (free, one-time display)>"
            }
        }
    }
}

Frequently asked questions

What is Varyntiq?

Pre-payment checks for AI agents: x402 quotes, untrusted prompts and audit receipts.

How do I install Varyntiq?

It runs as a remote server. In Claude Code: claude mcp add --transport http varyntiq 'https://payguard-production-abfe.up.railway.app/mcp' --header 'Authorization: <Bearer client token from https://payguard-production-abfe.up.railway.app/register (free, one-time display)>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Varyntiq need an API key?

Yes. It expects Authorization, which you set in its configuration.

Who maintains Varyntiq?

It is published by mercadosclaro-eng. 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.