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PayCheck

Official registry Finance and payments

Score merchant domain, https URL, or 0x wallet trust before an agent pays. Does not send payments.

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 paycheck 'https://paycheck.toolweather.workers.dev/mcp' --header 'Authorization: <Optional Bearer pc_live_… free key (POST https://paycheck.toolweather.workers.dev/v1/keys) for 1,000 free checks/day; 100/day without one. After the cap, x402 USDC on Base.>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "paycheck": {
            "type": "http",
            "url": "https://paycheck.toolweather.workers.dev/mcp",
            "headers": {
                "Authorization": "<Optional Bearer pc_live_… free key (POST https://paycheck.toolweather.workers.dev/v1/keys) for 1,000 free checks/day; 100/day without one. After the cap, x402 USDC on Base.>"
            }
        }
    }
}

Frequently asked questions

What is PayCheck?

Score merchant domain, https URL, or 0x wallet trust before an agent pays. Does not send payments.

How do I install PayCheck?

It runs as a remote server. In Claude Code: claude mcp add --transport http paycheck 'https://paycheck.toolweather.workers.dev/mcp' --header 'Authorization: <Optional Bearer pc_live_… free key (POST https://paycheck.toolweather.workers.dev/v1/keys) for 1,000 free checks/day; 100/day without one. After the cap, x402 USDC on Base.>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does PayCheck need an API key?

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

Is PayCheck open source?

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

Who maintains PayCheck?

It is published by toolweather. 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.